Efectos de la microvibración y estrógeno en la remodelación ósea: revisión sistemática / Effects of micro-vibration and estrogen on bone: a systematic review

Introducción: la pérdida de hueso es un suceso que afecta a la totalidad del esqueleto. Así, las alteraciones musculoesqueléticas afectan a millones de personas en todo el mundo y están entre las causas más comunes de dolor crónico. Objetivo: conocer los efectos de la microvibración y estrógeno en el remodelado óseo. Material y métodos: se realizó una revisión sistemática, se buscó en siete bases de datos, se incluyeron estudios clínicos controlados realizados con ratas o ratones en el periodo de publicación del 2004 al 2022. La calidad de la evidencia sintetizada se evaluó con la escala de Jadad. Resultados: se identificaron quince artículos como estudios primarios. La microvibración reportó cambios in vivo/in vitro totalmente dependientes del estímulo que conlleva incremento de la cortical externa. A su vez, con la administración de estrógeno se reportaron efectos, específicamente, en el hueso trabecular y en el periostio, así como colágeno inmaduro que indican un recambio óseo. Conclusión: tanto la microvibración como la administración de estrógeno coadyuvan a la remodelación del tejido óseo y son aprovechables como tratamiento en el momento que exista un problema de pérdida ósea (AU)

Introduction: Bone loss is an event that affects the entire skeleton. Thus, musculoskeletal disorders affect millions of people worldwide and are among the most common causes of chronic pain. Objective: to know the effects of micro-vibration and estrogen on bone remodelling. Material and methods: a systematic review was carried out; seven databases were searched; Controlled clinical studies conducted with rats or mice in the publication period from 2004 to 2022 were included. The quality of the synthesized evidence was assessed using the Jadad scale. Results: fifteen articles were identified as primary studies. Micro vibration reported in vivo/in vitro changes dependent on the stimulus that entails an increase in the outer cortex. In turn, with the administration of estrogen, effects were reported, specifically in the trabecular bone and in the periosteum, as well as immature collagen that indicates bone turnover. Conclusion: both micro-vibration and the administration of estrogen contribute to the remodelling of bone tissue and are usable as a treatment for bone loss (AU)

Vibration sensation associated with motor function has specific frequency characteristics in community-dwelling older Japanese adults / 体力科学

Vibration sensation is related to motor function. However, it is unclear which vibration frequencies are associated with motor function. Therefore, in this cross-sectional study, we investigated whether a specific frequency of vibration sensation could explain motor functions. Thirty-two community-dwelling Japanese healthy older adults aged 70 years or older participated in the present study. Grip strength, one-leg standing time, and 10-m walking time were evaluated as indicators of motor function. Vibratory (40, 128, and 256 Hz) and tactile sensory tests were examined as sensory functions. Grip strength per body weight was significantly correlated with sex, body mass index, falls efficacy scale, vibration sensation with 40 and 128 Hz, and 10-m walking time (P < 0.05). Furthermore, one-leg standing time showed a correlation between vibration sensation (128 and 256 Hz) and fall history (P < 0.05). However, 10-m walking time was significantly correlated with only the grip strength to body weight ratio. Multiple regression analysis showed that vibration sensation with 128 Hz (β = 0.427) and sex (β = -0.335) (P < 0.05) were significant independent variables associated with grip strength to body weight ratio. Vibration sensation with 256 Hz (β = 0.465) and age (β = -0.343) (P < 0.05) were significant independent variable associated with one-leg standing time. No significant variables were identified for the 10-m walking time. Vibration sensation associated with motor function shows specific frequency characteristics in community-dwelling older Japanese adults.

Health and functional outcome of whole body vibration for children and adolescents with cerebral palsy: a systematic review using WHO-FICs / 中国康复理论与实践

ObjectiveTo construct a research framework for systematic review of health and functional outcomes of whole body vibration training in children and adolescents with cerebral palsy based on the theory and method of World Health Organization Family of International Health Classifications (WHO-FICs), and to systematically review the major health conditions and physical functions, intervention programs of whole body vibration training, and health and functional outcomes of vibration intervention in children and adolescents with cerebral palsy. MethodsBased on the WHO-FICs method, the PICO architecture of systematic reviews was constructed, and the databases of CNKI, Wanfang Data, PubMed, Web of Science, EBSCO, and Embase were searched to collect randomized controlled trials about the health and functional effects of whole body vibration training on children and adolescents with cerebral palsy from the establishment to September 30th, 2022, and a systematic review was conducted. ResultsEight articles, seven in English and one in Chinese, from five countries, were included, mainly from journals in clinical rehabilitation, neurorehabilitation, physical medicine and rehabilitation, etc., published mainly after 2010, involving 227 participants (three to 12.3 years old). The quality of the articles was evaluated using the Physical Therapy Evidence Database scale with a mean score of six. The ICD-11 codes included 08 diseases of the nervous system, 8D20 spastic cerebral palsy, 8D20.1 spastic bilateral cerebral palsy, 8D20.10 spastic quadriplegia cerebral palsy and 8D2Z unspecified cerebral palsy. The primary functioning of cerebral palsy was characterized as muscle spasticity, abnormal skeletal development, joint deformities and muscle weakness, decrease of selective motor control and gait abnormalities; for the activity and participation, the functioning included walking difficulties, decrease of mobility and weight loading, and low levels of physical activities. The main intervention was whole body vibration, in postures of lying, squatting or standing, mainly standing, in the mode of vertical vibration. The frequency was 5 to 30 Hz, and the amplitude was below 9 mm, three to five times a week for eight weeks to six months. The intervention settings include medical institutions, schools and families; mainly for therapeutics and recovery. The health and health-related outcomes were mainly involved s7 structures related to movement, b710 mobility of joint functions, b730 muscle power functions, b735 muscle tone functions, b760 control of voluntary movement functions, d410 changing basic body position, d415 maintaining a body position, d450 walking, d455 moving around, and d420 transferring oneself; such as improvements of neuromusculoskeletal and joint functions, muscle spasm, static balance, muscle strength, and control of movement, the control of body posture and walking, range of activities and self-care. ConclusionWhole body vibration training is effective on cerebral palsy, mainly in standing position, 5 to 30 Hz, and amplitude below 9 mm; three to five times a week for eight weeks to six months. The outcomes of whole body vibration training are mainly reflected in the improvement of body-motor functions, and activity and participation.

Effects of vibration training on balance stability in long jumpers / Efeitos do treinamento de vibração na estabilidade do equilíbrio em saltadores de salto em distância / Efectos del entrenamiento de vibración sobre la estabilidad del equilibrio en saltadores de longitud

ABSTRACT Introduction Vibration training refers to the introduction of vibration methods into the daily training of athletes for body stimulation. In this way, coaches improve athletes' strength, flexibility, and balance. Athletes can use vibration to stimulate neuromuscular activation. This allows more active units to be concentrated in the muscular contraction. In this way, the athlete's muscular strength can be increased. Objective This study aimed to analyze the relationship between vibration training and the balance ability of long jumpers. Methods This paper selects several long jumpers as research subjects. The effects of vibration exercises at different frequencies on athletes' stability are discussed, employing experimental comparison. In this context, statistical calculations are performed on the experimental results. Results There was no difference in balance ability between the vibration and general training groups before training (P>0.05). The athletes in the vibration training group showed more significant improvement in balance after a training period than the general training group. There were significant differences in the data between the two groups (P<0.01). Conclusion Vibration strength training can effectively improve the balance ability of jumpers. Athletes should increase the frequency of vibration training in their daily training. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução O treinamento vibratório refere-se à introdução de métodos de vibração no treinamento diário dos atletas para estimulação corporal. Desta forma, os treinadores melhoram a força, a flexibilidade e o equilíbrio dos atletas. Os atletas podem usar as vibrações para estimular a ativação neuromuscular. Isto permite que mais unidades ativas sejam concentradas na contração muscular. Desta forma, a força muscular do atleta pode ser aumentada. Objetivo Este estudo teve como objetivo analisar a relação entre o treinamento por vibração e a capacidade de equilíbrio dos saltadores de salto em distância. Métodos Este trabalho seleciona vários saltadores de salto em distância como objetos de pesquisa. Discute-se os efeitos dos exercícios de vibração em diferentes freqüências sobre a estabilidade do atleta, empregando a comparação experimental. Neste contexto, são efetuados cálculos estatísticos sobre os resultados experimentais. Resultados Não houve diferença na capacidade de equilíbrio entre o grupo de vibração e os grupos de treinamento geral antes do treinamento (P>0,05). Os atletas do grupo de treinamento de vibração mostraram uma melhora mais significativa no equilíbrio após um período de treinamento do que no grupo de treinamento geral. Houveram diferenças significativas nos dados entre os dois grupos (P<0,01). Conclusão O treinamento de força vibratória pode efetivamente melhorar a capacidade de equilíbrio dos saltadores. Os atletas devem aumentar a freqüência do treinamento por vibração em seu treinamento diário. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción El entrenamiento con vibraciones se refiere a la introducción de métodos de vibración en el entrenamiento diario de los deportistas para la estimulación del cuerpo. De este modo, los entrenadores mejoran la fuerza, la flexibilidad y el equilibrio de los deportistas. Los atletas pueden utilizar la vibración para estimular la activación neuromuscular. Esto permite concentrar más unidades activas en la contracción muscular. De este modo, se puede aumentar la fuerza muscular del deportista. Objetivo Este estudio tiene como objetivo analizar la relación entre el entrenamiento de vibración y la capacidad de equilibrio de los saltadores de longitud. Métodos En este trabajo se seleccionan varios saltadores de longitud como objeto de investigación. Se discuten los efectos de los ejercicios de vibración a diferentes frecuencias sobre la estabilidad del atleta, empleando la comparación experimental. En este contexto, se realizan cálculos estadísticos sobre los resultados experimentales. Resultados No hubo diferencias en la capacidad de equilibrio entre el grupo de vibración y los grupos de entrenamiento general antes del entrenamiento (P>0,05). Los atletas del grupo de entrenamiento con vibración mostraron una mejora significativa del equilibrio tras un periodo de entrenamiento que los del grupo de entrenamiento general. Hubo diferencias significativas en los datos entre los dos grupos (P<0,01). Conclusión El entrenamiento de fuerza con vibración puede mejorar eficazmente la capacidad de equilibrio de los saltadores. Los deportistas deben aumentar la frecuencia del entrenamiento con vibraciones en su entrenamiento diario. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Effects of vibration training on the physical fitness of short-distance swimmers / Efeitos do treinamento de vibração sobre a aptidão física dos nadadores de curta distância / Efectos del entrenamiento con vibración en la aptitud física de los nadadores de corta distancia

ABSTRACT Introduction Vibration training is a widespread exercise. Existing experimental results show that using vibration strength exercises under the same loading conditions can improve the muscular strength of swimmers' lower limbs. Objective This paper especially studies the effect of vibration exercise on the physical quality of swimmers under various conditions. Methods The athletes were randomly divided into two groups: the experimental group and the control group. The experimental group used a vibrometer to exercise the lower limb muscles. The control group engaged only in routine training. After eight weeks of practice, the runners tested in the 100m, 150m, 200m, and 400m. The present article also explores the relationship between swimmers of different ages. Results Compared to the control group, there was a significant difference in maximum hip extensor volume between the experimental and control groups. There was also a significant difference between the two groups (P<0.05). The most significant increase in maximal exercise capacity between the two groups was in the ankle. The change in maximum load between the two groups was also significant (P<0.01). Conclusion The vibration training method can improve the swimmer's knee flexor group. Swimmers can improve their body coordination by performing vibration exercises. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução O treinamento de vibração é um exercício amplamente difundido. Os resultados experimentais existentes mostram que o uso de exercícios de força vibratória sob as mesmas condições de carga pode melhorar a força muscular dos membros inferiores dos nadadores. Objetivo Este trabalho estuda especialmente o efeito do exercício de vibração sobre a qualidade física dos nadadores sob variadas condições. Métodos Os atletas foram divididos aleatoriamente em dois grupos: grupo experimental e grupo de controle. O grupo experimental utilizou um vibrômetro para exercitar os músculos dos membros inferiores. O grupo de controle ocupou-se apenas com o treinamento rotineiro. Após oito semanas de prática, os corredores testaram nos 100m, 150m, 200m e 400m. O presente artigo também explora a relação entre os nadadores de diferentes idades. Resultados Em comparação com o grupo controle, houve uma diferença significativa no volume máximo do extensor do quadril entre os grupos experimental e controle. Houve também uma diferença significativa entre os dois grupos (P<0,05). O aumento mais significativo na capacidade máxima de exercício entre os dois grupos foi no tornozelo. A alteração de carga máxima entre os dois grupos também foi significativa (P<0,01). Conclusão O método de treino por vibração pode melhorar o grupo de flexores do joelho do nadador. Os nadadores podem melhorar a coordenação corporal ao realizar exercícios vibracionais. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción El entrenamiento con vibración es un ejercicio muy extendido. Los resultados experimentales existentes muestran que el uso de ejercicios de fuerza por vibración en las mismas condiciones de carga puede mejorar la fuerza muscular de los miembros inferiores de los nadadores. Objetivo Este trabajo estudia especialmente el efecto del ejercicio de vibración sobre la calidad física de los nadadores en condiciones variadas. Métodos Los atletas fueron divididos aleatoriamente en dos grupos: grupo experimental y grupo de control. El grupo experimental utilizó un vibrador para ejercitar los músculos de las extremidades inferiores. El grupo de control sólo se ocupó de la formación rutinaria. Después de ocho semanas de práctica, los corredores hicieron pruebas en los 100, 150, 200 y 400 metros. Este documento también explora la relación entre nadadores de diferentes edades. Resultados En comparación con el grupo de control, hubo una diferencia significativa en el volumen máximo de los extensores de la cadera entre los grupos experimental y de control. También hubo una diferencia significativa entre los dos grupos (P<0,05). El aumento más significativo de la capacidad máxima de ejercicio entre los dos grupos se produjo en el tobillo. El cambio en la carga máxima entre los dos grupos también fue significativo (P<0,01). Conclusión El método de entrenamiento con vibración puede mejorar el grupo de flexores de la rodilla del nadador. Los nadadores pueden mejorar la coordinación corporal realizando ejercicios de vibración. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Effects of vibration training on upper limbs of volleyball players / Efeitos do treinamento vibratório sobre os membros superiores dos jogadores de voleibol / Efectos del entrenamiento con vibraciones en las extremidades superiores de los jugadores de voleibol

ABSTRACT Introduction: The research on vibration training has experienced a period of development in many projects, such as badminton, handball, long jump, and volleyball. However, there is still no quantitative research evaluation of its effects on the development of shoulder, elbow, and upper limb muscle strength in volleyball athletes. It is believed that a specific training protocol with vibration may bring benefits to sensory-motor performance and muscle strength implementation in volleyball athletes. Objective: To study the effects of vibration training on upper limb function in volleyball players. Methods: Literature, experimental, and mathematical-statistical research methods were used to explore the relationship between vibration training under the muscle strength of the upper limbs and their joints. Results: The vibration training with an amplitude of 2mm, at a vibration frequency between 30Hz and 45Hz, the frequency of vibration training presented inversely proportional to the effect of vibration training. Conclusion: Vibration training showed the benefits of motor coordination and increased muscle strength in volleyball players. An appropriate vibration training strategy can maximize athletes' skills, such as body coordination, flexibility, and jumping ability. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução: A pesquisa sobre o treinamento por vibração experimentou um período de desenvolvimento sendo aplicada em muitos projetos como badminton, handebol, salto em distância e voleibol. Entretanto, ainda não há uma avaliação quantitativa da pesquisa sobre seus efeitos em ombro, cotovelo e sobre o desenvolvimento de força muscular nos membros superiores dos atletas de voleibol. Acredita-se que um protocolo de treino específico com vibração possa trazer benefícios ao desempenho sensório-motor e implementação de força muscular nos atletas de voleibol. Objetivo: Estudar os efeitos do treinamento por vibração sobre a função dos membros superiores dos jogadores de vôlei. Métodos: Utilizou-se métodos de pesquisa bibliográfica, experimental e estatística matemática para explorar a relação entre o treinamento vibratório sob a força muscular dos membros superiores e suas articulações. Resultados: O treinamento vibratório com amplitude de 2mm, numa frequência de vibração entre 30Hz e 45Hz, a frequência do treinamento vibratório apresentou-se inversamente proporcional ao efeito do treinamento vibratório. Conclusão: O treinamento vibratório mostrou benefícios de coordenação motora e aumento de força muscular nos jogadores de voleibol. Uma estratégia adequada de treinamento por vibração pode maximizar as habilidades dos atletas, tais como coordenação corporal, flexibilidade e habilidade de salto. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción: La investigación sobre el entrenamiento con vibraciones ha experimentado un periodo de desarrollo aplicándose en muchos proyectos como el bádminton, el balonmano, el salto de longitud y el voleibol. Sin embargo, todavía no hay una evaluación cuantitativa de la investigación sobre sus efectos en el hombro, el codo y en el desarrollo de la fuerza muscular en las extremidades superiores de los atletas de voleibol. Se cree que un protocolo de entrenamiento específico con vibración puede aportar beneficios al rendimiento sensomotor y a la implementación de la fuerza muscular en los atletas de voleibol. Objetivo: Estudiar los efectos del entrenamiento con vibraciones sobre la función de las extremidades superiores en jugadores de voleibol. Métodos: Se utilizaron métodos de investigación literarios, experimentales y estadísticos matemáticos para explorar la relación entre el entrenamiento con vibración bajo la fuerza muscular de los miembros superiores y sus articulaciones. Resultados: El entrenamiento vibratorio con amplitud de 2mm, en una frecuencia de vibración entre 30Hz y 45Hz, la frecuencia del entrenamiento vibratorio se presentó inversamente proporcional al efecto del entrenamiento vibratorio. Conclusión: El entrenamiento con vibraciones mostró beneficios de coordinación motora y aumento de la fuerza muscular en jugadores de voleibol. Una estrategia adecuada de entrenamiento con vibraciones puede maximizar las habilidades de los atletas, como la coordinación corporal, la flexibilidad y la capacidad de salto. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Effects of the vibrational stimulation on the muscle strength of the knee joints of athletes / Efeitos da estimulação da vibração sobre a força muscular das articulações do joelho dos atletas / Efectos de la estimulación por vibración en la fuerza muscular de las articulaciones de atletas

ABSTRACT Introduction: The traditional lower extremity muscle strength training consists mainly of resistance training, where training intensity is gradually increased, targeting strength gain. Objective: Study the effect of different vibration frequencies on muscle strength training of tennis players' knee joints. Methods: Using PHYSIO-PLATE vibration training platform, tennis players of a Beijing team were subjected to different frequencies of strength training with vibrational stimulation; after eight weeks of systematic strength training, the vibration frequencies were 30Hz and 45Hz, with amplitude of 7mm. Results: After the experiment, the relative peak torque and total work of the knee extensor muscles in subjects in groups I and II were significantly improved (P<0.05), generating a significant increase in rapid maximal power start. Conclusion: The vibrational stimulation addition to muscle strength training can effectively enhance its effect, including characteristics such as maximal strength, rapid strength, and muscular endurance with a relatively small load. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução: O método tradicional de treinamento de força muscular das extremidades inferiores consiste principalmente no treinamento de resistência, onde é aumentada gradualmente a intensidade do treinamento visando o ganho de força. Objetivo: Estudar o efeito de diferentes frequências de vibração sobre o treino de força muscular nas articulações do joelho de tenistas. Métodos: Usando a plataforma de treinamento de vibração PHYSIO-PLATE, os tenistas de uma equipe de Pequim foram submetidos a diferentes frequências de treinamento de força com estimulação vibratória, após oito semanas de treinamento de força sistemático, as frequências de vibração foram de 30Hz e 45Hz, com amplitude de 7mm. Resultados: Após o experimento, o torque de pico relativo e o trabalho total dos músculos extensores do joelho nos indivíduos dos grupos I e II foram significativamente aprimorados (P<0,05), gerando um significativo aumento na potência máxima rápida de arranque. Conclusão: A adição do estímulo vibratório ao treinamento de força muscular pode efetivamente melhorar seu efeito, incluindo características como a força máxima, força rápida e resistência muscular com uma carga relativamente pequena. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción: El método tradicional de entrenamiento de la fuerza muscular de las extremidades inferiores consiste principalmente en el entrenamiento de la resistencia, donde la intensidad del entrenamiento se incrementa gradualmente con el objetivo de ganar fuerza. Objetivo: Estudiar el efecto de diferentes frecuencias de vibración en el entrenamiento de la fuerza muscular de las articulaciones de la rodilla de los tenistas. Métodos: Utilizando la plataforma de entrenamiento de vibración PHYSIO-PLATE, los jugadores de tenis de un equipo de Pekín fueron sometidos a diferentes frecuencias de entrenamiento de fuerza con estimulación de vibración, después de ocho semanas de entrenamiento de fuerza sistemático, las frecuencias de vibración fueron 30Hz y 45Hz, con amplitud de 7mm. Resultados: Después del experimento, el par máximo relativo y el trabajo total de los músculos extensores de la rodilla en los sujetos de los grupos I y II mejoraron significativamente (P<0,05), generando un aumento significativo en el inicio de la potencia máxima rápida. Conclusión: La adición de la estimulación vibratoria al entrenamiento de la fuerza muscular puede mejorar eficazmente su efecto, incluyendo características como la fuerza máxima, la fuerza rápida y la resistencia muscular con una carga relativamente pequeña. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Effects of vibration strength training on lower limb joints in long jumpers / Efeitos do treinamento de força por vibração nas articulações dos membros inferiores dos saltadores em distância / Efectos del entrenamiento de fuerza por vibración en las articulaciones de los miembros inferiores de los saltadores de longitud

ABSTRACT Introduction As a new training method, vibration strength training has been widely used in strength training and mass rehabilitation of foreign athletes. As an auxiliary method of strength training in China, vibration strength has also attracted the attention of professionals. Studies in this area are important to keep up with the latest international theories and techniques of vibration strength training. Objective Study the effects of vibration strength training on the lower limb joints of long jump athletes. Methods A search of recent medical literature was conducted to develop an experimental test method, and mathematical statistics were implemented to analyze this research study with volunteer long jumpers. Results The relative increase in peak torque of the hip and knee joints was greater when compared to the ankle joint. Both showed considerable improvement after the experimental protocol. Conclusion After comparing the vibration force of lower limb joints with the training effect of long jump athletes, some flexor strength training methods can be added, increasing the intensity and the amount of load appropriately so that the lower limb joint extensor and flexor strength level can be coordinated proportionally, aiming to improve the level of strength and motor coordination in athletes. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução Como um novo método de treinamento, o método de treinamento de força por vibração tem sido amplamente utilizado no treinamento de força e na reabilitação em massa de atletas estrangeiros. Como método auxiliar de treinamento de força na China, a força vibratória também tem atraído a atenção dos profissionais. Estudos nessa área são importantes para acompanhar as mais recentes teorias e técnicas internacionais de treinamento de força por vibração. Objetivo Estudar os efeitos do treinamento de força por vibração nas articulações de membros inferiores de atletas de salto em distância. Métodos Fez-se uma pesquisa na literatura médica recente para desenvolver um método de teste experimental e implementou-se a estatística matemática para analisar este estudo de pesquisa com saltadores em distância voluntários. Resultados O aumento relativo do pico de torque das articulações do quadril e joelho foi maior quando comparado a articulação do tornozelo. Ambos demonstraram melhora considerável após o protocolo experimental. Conclusão Após comparar a força de vibração das articulações dos membros inferiores com o efeito de treinamento de atletas de salto em distância, alguns métodos de treinamento de força de flexor podem ser adicionados, aumentando adequadamente a intensidade e a quantidade de carga, de modo que o extensor da articulação dos membros inferiores e o nível de força de flexor possam ser coordenados proporcionalmente, visando aprimorar o nível de força e de coordenação motora nos atletas. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción Como nuevo método de entrenamiento, el método de entrenamiento de fuerza por vibración ha sido ampliamente utilizado en el entrenamiento de fuerza y la rehabilitación de masas de los atletas extranjeros. Como método auxiliar de entrenamiento de fuerza en China, la fuerza vibratoria también ha atraído la atención de los profesionales. Los estudios en este ámbito son importantes para mantenerse al día con las últimas teorías y técnicas internacionales de entrenamiento de fuerza por vibración. Objetivo Estudiar los efectos del entrenamiento de fuerza por vibración en las articulaciones de las extremidades inferiores de los atletas de salto de longitud. Métodos Se realizó una búsqueda en la literatura médica reciente para desarrollar un método de prueba experimental y se implementó la estadística matemática para analizar este estudio de investigación con saltadores de longitud voluntarios. Resultados El aumento relativo del par máximo de las articulaciones de la cadera y la rodilla fue mayor en comparación con la articulación del tobillo. Ambos mostraron una mejora considerable tras el protocolo experimental. Conclusión Después de comparar la fuerza de vibración de las articulaciones de los miembros inferiores con el efecto del entrenamiento de los atletas de salto de longitud, se pueden añadir algunos métodos de entrenamiento de la fuerza de los flexores, aumentando adecuadamente la intensidad y la cantidad de carga, de modo que el nivel de fuerza de los extensores de la articulación de los miembros inferiores y el nivel de fuerza de los flexores puedan coordinarse proporcionalmente, con el objetivo de mejorar el nivel de fuerza y la coordinación motora de los atletas. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Effects of whole body vibration training on postural stability in chronic ankle instability: a meta-analysis / 中国康复理论与实践

ObjectiveTo investigate the effects of whole body vibration training on postural stability in patients with chronic ankle instability (CAI) using meta-analysis. MethodsRandomized controlled trials about whole body vibration training on patients with CAI in relation to postural stability were retrieved from PubMed, Cochrane Library, Web of Science, Physiotherapy Evidence Database (PEDro) scale, CNKI and WanFang data from inception to November, 2022. Reference lists of included studies were also traced to supplement the relevant literature. Two researchers independently searched the literature, and extracted relevant data. The PEDro scale was used to assess the quality, and the Cochrane Handbook was used to assess the risk of bias. The meta-analysis was conducted using Review Manager 5.3. And Stata 15.0 was used to conduct the Egger's test to assess publication bias. ResultsTwelve randomized controlled trials involving 440 individuals were included. Compared with the other exercises or no exercise, whole body vibration training could improve the center of pressure-area (MD = -0.70, 95% CI -0.97 to -0.43, P < 0.001) and the Star Excursion Balance Test in the direction of anterior (MD = 6.16, 95% CI 3.88 to 8.44, P < 0.001), posteromedial (MD = 6.22, 95% CI 3.68 to 8.76, P < 0.001), posterolateral (MD = 6.68, 95% CI 4.28 to 9.08, P < 0.001), anteromedial (MD = 8.78, 95% CI 6.71 to 10.85, P < 0.001), medial (MD = 4.16, 95% CI 1.46 to 6.86, P = 0.002), posterior (MD = 6.69, 95% CI 3.81 to 9.58, P < 0.001), lateral (MD =12.37, 95% CI 8.09 to 16.65, P < 0.001) and anterolateral (MD = 5.29, 95% CI 1.44 to 9.13, P = 0.007). However, there was no significant difference in the overall stability index (MD = 0.02, 95% CI -0.05 to 0.09, P = 0.643) and hop-test (MD = 6.24, 95% CI -8.80 to 21.28, P = 0.416) between whole body vibration training and other exercises or no exercise. ConclusionWhole body vibration training can improve the range of all directions of the Star Excursion Balance Test in individuals with CAI. However, more studies are needed to determine the improvement of center of pressure-area.

Epidemiological characteristics and risk assessment of occupational diseases caused by physical factors in Guangdong Province, 2013-2022 / 中国职业医学

Objective To analyze the epidemiological characteristics of occupational diseases caused by physical factors in Guangdong Province from 2013 to 2022, and to evaluate the key risk points of its incidence. Methods The data of newly diagnosed and suspected occupational diseases caused by physical factors in Guangdong Province from 2013 to 2022 were collected from the Occupational Diseases and Hazards Monitoring Information System under China Disease Prevention and Control Information System, and were analyzed retrospectively. The key risk points of occupational diseases caused by physical factors were evaluated. Results A total of 661 cases of occupational diseases caused by physical factors were reported in Guangdong Province from 2013 to 2022, showing an overall increasing trend, with an average annual growth rate of 29.6%. The major occupational diseases caused by physical factors were occupational hand-arm vibration disease and occupational heat stroke, accounting for 59.5% and 39.6%, respectively. The nine prefecture-level cities of Pearl River Delta region accounted for 98.5% of the new cases. The cases were distributed mainly in the manufacturing industry (77.0% of the cases). A total of 294 enterprises were involved in the analysis of newly diagnosed occupational diseases caused by physical factors. Occupational hand-arm vibration cases appeared to be significantly aggregated in specific enterprises, and other disease cases were mostly sporadic. The types of enterprise registration were mainly Hong Kong-, Macao-, and Taiwan-invested enterprises and domestic-funded enterprises, accounting for 53.1% and 41.4%, respectively. In terms of enterprise size, large-scale and small-scale enterprises accounted for 56.5% and 21.4% of cases, respectively. A total of 27.4% of workers with occupational diseases caused by physical factors were identified as suspected occupational diseases before be diagnosed as occupational diseases, all of which were hand vibration disease and heat stroke In the future, attention should be paid to the risks of mass events of occupational hand-arm vibration disease, outbreaks of occupational heat stroke, and missed diagnosis of suspected occupational hand-arm vibration disease. Conclusion Among all occupational diseases caused by physical factors in Guangdong Province, attention should be paid on occupational hand-arm vibration disease and occupational heat stroke. Occupational hand-arm vibration disease has a high risk of group morbidity. Construction workers and sanitation workers have a high potential risk of occupational heat stroke.

Analysis of the effect of hand-transmitted vibration on hearing loss in male noise-exposed workers / 中国职业医学

Objective To investigate the combined effect of noise and hand-transmitted vibration on hearing loss in male noise-exposed workers. Methods A total of 952 male noise-exposed workers from an automobile manufacturing enterprise were selected as the research subjects using judgment sampling method. Occupational epidemiological surveys, assessments of occupational hazards in workplace, and pure-tone audiometry tests were conducted on the research subjects, and they were divided into low-level noise group, low-level combined group, high-level noise group, and high-level combined group according to whether the noise exposure level exceeded the national standard and whether they were jointly exposed to hand-transmitted vibration. The joint effects of noise and hand-transmitted vibration on hearing loss were analyzed. Results The detection rate of hearing loss in 952 noise-exposed workers was 21.7%. The detection rate of hearing loss of four groups, from high to low, was as follows： high-level combined group, high-level noise group, low-level combined group, and low-level noise group (44.9% vs 32.7% vs 12.9% vs 5.7%, P<0.01). The results of multivariate logistic regression analysis showed that the risk of hearing loss in the low-level noise group, the low-level combined group, the high-level noise group and the high-level combined group increased sequentially after adjusting for the confounding factors such as age, education level, smoking, drinking, listening to music with headphones, frequency of wearing noise-blocking earplugs and body mass index. The risk of hearing loss in the high-level noise group was 8.62 times more than that of the low-level noise group (P<0.01). The risk of hearing loss in the low-level noise combined group was 2.50 times more than that of the low-level noise group (P<0.01). The risks of hearing loss in the high-level combined group were 5.76 and 1.67 times more than that of the low-level combined group and the high-level noise group. Conclusion Combined exposure to noise and hand-transmitted vibration can increase the risk of hearing loss in male noise-exposed workers, and the higher the noise intensity, the greater the synergistic effect. Hand-transmitted vibration is a synergistic risk factor for occupational noise-induced hearing loss.

Whole-body vibration exposure characterization in bus drivers of Haikou City: A comparison between two health risk assessment methods / 环境与职业医学

Background Long-term exposure to whole-body vibration (WBV) will affect the health of occupational drivers. However, research on the characteristics of WBV exposure by urban bus drivers and health risk evaluation is still insufficient. Objective To identify the characteristics of occupational WBV exposure of bus drivers serving 31 bus routes provided by three branches of Haikou Public Transport Group, and to evaluate their occupational health risks related to WBV. Methods A total of 31 out of 142 bus routes run by three branches of Haikou Public Transport Group were selected to monitor WBV exposure of 31 bus drivers during driving. WBV parameters such as triaxial frequency weighted acceleration (awx, awy, awz) and triaxial crest factor (CFx, CFy, CFz) of the drivers were determined with a six-channel human vibration meter. Two methods, 8-hour daily value of the weighted root mean square average weighted vibration [A(8)] based on aw and 8-hour daily value of vibration dose [VDV(8)] based on vibration dose value (VDV), were used for health risk assessment and classified WBV health risk results into three levels (high, medium, and low) by the exposure action value (EAV) and exposure limit values (ELV) for A(8) and VDV(8) recommended by ISO 2631-1:1997. The two evaluation methods, A(8) and VDV(8), were compared by Fisher's exact test. Results Regarding the WBV parameters, the vector sum of acceleration (av) was 0.321-0.680 m·s−2, the VDV of monitoring interval was 3.824-10.174 m·s−1.75, and the VDV(8) was 6.039-13.505 m·s−1.75; their values in mean ± standard deviation were (0.480±0.100) m·s−2, (6.987±2.737) m·s−1.75, and (9.773±4.540) m·s−1.75, respectively. Positive correlations were found between awx and awz, av and awz, CFx and CFy, CFy and CFz. No bus route's WBV exposure level was graded as high health risk by either A(8) or VDV(8). The number of routes graded as low health risk by A(8) was 26, while the number by VDV(8) was 12. The consistency rates of health risk levels evaluated by the two methods were 66.7% (6/9), 54.6% (6/11), and 45.5% (5/11) for the three bus group branches, respectively. The difference in WBV health risk assessment results between the two evaluation methods was not statistically significant. Conclusion Positive correlations are found between triaxial acceleration and triaxial crest factor. There is no difference in the results of using A(8) and VDV(8) to evaluate health risks of WBV in urban bus routes.

Ankle proprioception after a stroke / 中华物理医学与康复杂志

Objective:To explore vibration, position and motion proprioception of the ankle joints after a stroke.Methods:Twenty-eight stroke survivors with impaired ankle proprioception were divided into a right-side stroke group ( n=18) and a left-side stroke group ( n=8). Twenty-two healthy volunteers constituted a control group. Vibration perception thresholds, passive and active joint angle resetting, and motion minimum thresholds were quantified among the stroke survivors on both the healthy and the affected side. With the controls the dominant and non-dominant sides were used. The differences in proprioception between the healthy volunteers and the stroke patients, between the affected side and the healthy side of the stroke patients, and between left- and right-side stroke patients were analyzed and compared. Results:Among the stroke survivors the vibration perception threshold on the affected side averaged (28.91±22.53)μm. The absolute difference in the perception of passive positioning was (5.49±5.39)° for 15° of plantar flexion and (4.48±3.89)° for 5° of dorsal extension. In active positioning plantar flexion was (5.23±4.34)° and for 30° of plantar flexion it was (3.26±1.73)°. The 5° dorsal extension error was (4.97±3.48)°. The motion perception thresholds between 20° of plantar flexion, 10° of plantar flexion and the neutral position were significantly higher, on average, than among the control group. The stroke group also had significantly higher motion perception thresholds than the control group.Conclusion:The vibration, position, and motion sense of the ankle joint on a stroke survivor′s affected side tend to be impaired, with the impairment of vibration and motion sensing tend to be more substantial. After stroke, there is also mild impairment of vibration, position and motion sensing in the healthy ankle joint. The impairment of proprioception caused by right cerebral hemisphere injury may be more serious than that caused by injury on the left.

Comparison of four methods that remove calcium hydroxide from root canals / 口腔疾病防治

Objective@# To compare the efficiency of four methods that remove calcium hydroxide in root canals and to guide clinical practice. @* Methods @# Sixty-five isolated mandibular single root canal premolars were collected. After crown cutting and root canal preparation, a tooth was randomly selected as the blank control group, and the remaining 64 teeth were equally divided into Groups A and B (n = 32). Group A was injected with water-soluble calcium hydroxide, and Group B was injected with oil-soluble calcium hydroxide. After 2 weeks of drug sealing, Groups A and B were randomly divided into 4 groups (n = 8), including the lateral opening syringe group, sonic vibration group, ultrasonic group, and Er: YAG laser group. Before and after calcium hydroxide removal, the samples were scanned by cone-beam CT, and the data were imported into Mimics for 3D reconstruction. The root canal was divided into the following segments: superior root segment, middle and apical, and the calcium hydroxide volume of each segment of the root canal was calculated. The volumes of calcium hydroxide before and after removal were V1 and V2, respectively, with a clearance rate = (V1-V2)/V1×100%. Three-factor ANOVA was used for statistical analysis. After Groups A and B were reconstructed, the apical region with residual calcium hydroxide was selected, and the blank control was observed by scanning electron microscopy (SEM). @*Results @# Two types of calcium hydroxide could not be completely removed by the four flushing methods. The clearance rate of water-soluble calcium hydroxide was higher than that of oil-soluble calcium hydroxide (P<0.001). Among the three segments of the root canal, the clearance rate of the apical segment was lower (P<0.05). The Er: YAG laser treatment group showed the highest removal efficiency of two kinds of calcium hydroxide, which was higher than that of the other groups, especially in apical of the root. Compared with the sonic wave washing group and the syringe washing group, the ultrasonic wave washing group exhibited significant advantages (P<0.05). The clearance rate of the sonic wave washing group was higher in the oily calcium hydroxide root middle group than in the syringe washing group (P<0.05). SEM showed that the two kinds of calcium hydroxide could not be completely removed, but the residual rate of oil-soluble calcium hydroxide was large.@*Conclusion @# Both types of calcium hydroxide could not be completely removed, and compared to water-soluble calcium hydroxide, oil-soluble calcium hydroxide was more difficult to remove. Among the four cleaning methods, Er:YAG laser swing washing showed the higher cleaning efficiency.

Efeitos da vibração do tendão muscular no equilíbrio após acidente vascular cerebral: revisão sistemática / Efectos de la vibración del tendón muscular en el equilibrio después del accidente cerebrovascular: una revisión sistemática / Effects of muscle tendon vibration on balance after stroke: systematic review

RESUMO Após o acidente vascular cerebral (AVC), as pessoas apresentam combinações complexas de déficits sensoriais, motores, cognitivos e emocionais que podem afetar o equilíbrio estático e dinâmico. O objetivo do estudo foi compilar e resumir as principais características e achados de protocolos utilizados em pesquisas que investigaram os efeitos da vibração no tendão muscular no equilíbrio estático e dinâmico em adultos com AVC. Trata-se de uma revisão sistemática, registrada na PROSPERO (CRD42022303874), em que foram realizadas buscas nas bases de dados PubMed, Cochrane, LILACS, SciELO, MEDLINE, Science Direct e PEDro, durante o mês de janeiro de 2022, por meio da combinação de palavras-chave relacionadas a "stroke", "balance", "muscle tendon vibration" e "randomized controlled trial". A qualidade metodológica foi avaliada através da escala PEDro. Foram identificados 1.560 estudos, dos quais 11 foram incluídos, publicados entre 1994 e 2020, envolvendo 242 adultos pós-AVC. Apenas cinco estudos utilizaram a vibração como intervenção e verificaram melhora no equilíbrio estático e dinâmico. Seis estudos analisaram a interferência da vibração no controle postural, observando que o equilíbrio foi afetado durante a aplicação da vibração e que os indivíduos precisaram de mais tempo para se recuperar ou não sofreram diferenças significativas. Verificou-se que os efeitos da vibração do tendão muscular podem melhorar o equilíbrio em pessoas com AVC e influenciar o controle postural através de mecanismos proprioceptivos da vibração. Entretanto, são necessários mais estudos de alta qualidade metodológica para atingir um consenso em relação aos protocolos de tratamento com vibração do tendão muscular e sua recomendação na prática clínica.

RESUMEN Después del accidente cerebrovascular, las personas tienen combinaciones complejas de déficits sensoriales, motores, cognitivos y emocionales que pueden afectar el equilibrio estático y dinámico. El objetivo de este estudio fue recopilar y resumir las principales características y hallazgos de los protocolos utilizados en los estudios que investigaron los efectos de la vibración del tendón muscular sobre el equilibrio estático y dinámico en adultos con accidente cerebrovascular. Se trata de una revisión sistemática, registrada en PROSPERO (CRD420223874), en la que se realizaron búsquedas en las Bases de Datos PubMed, Cochrane, LILACS, SciELO, MEDLINE, Science Direct y PEDro, durante el mes de enero de 2022, mediante la combinación de palabras clave relacionadas con "stroke", "balance", "muscle tendon vibration" y "randomized controlled trial". La calidad metodológica se evaluó mediante la escala PEDro. Se identificaron un total de 1.560 estudios, de los cuales se incluyeron 11, publicados entre 1994 y 2020, con 242 adultos después del accidente cerebrovascular. Solo cinco estudios utilizaron la vibración como intervención y verificaron la mejoría en el equilibrio estático y dinámico. Seis estudios analizaron la interferencia de la vibración en el control postural, señalando que el equilibrio se vio afectado durante la aplicación de la vibración y que los individuos necesitaron más tiempo para recuperarse o no sufrieron diferencias significativas. Se encontró que los efectos de la vibración del tendón muscular pueden mejorar el equilibrio en personas con accidente cerebrovascular e influir en el control postural a través de mecanismos propioceptivos de vibración. Sin embargo, se necesitan más estudios de alta calidad metodológica para llegar a un consenso con respecto a los protocolos de tratamiento con vibración del tendón muscular y su recomendación en la práctica clínica.

ABSTRACT After cerebrovascular accident (CVA), people have complex combinations of sensory, motor, cognitive, and emotional deficits, which can affect static and dynamic balance. This study aimed to compile and summarize the main features and findings of protocols used in research that investigated the effects of muscle tendon vibration on static and dynamic balance in adults with stroke. This is a systematic review, registered in PROSPERO (CRD42022303874), in which searches were performed in the databases PubMed, Cochrane, LILACS, SciELO, MEDLINE, Science Direct, and PEDro, during the month of January 2022, using the combination of keywords related to "stroke," "balance," "muscle tendon vibration," "randomized controlled trial." Methodological quality was assessed using the PEDro scale. A total of 1,560 studies were identified, 11 of which were included, between the years 1994 to 2020, involving 242 post-stroke adults. Only five studies used vibration as an intervention and found an improvement in static and dynamic balance. Six studies analyzed the interference of vibration on postural control, showing that balance was affected during the application of vibration and that individuals needed more time to recover or did not experience significant differences. We found that the effects of muscle tendon vibration may be able to improve balance in people with stroke and influence postural control by proprioceptive mechanisms of vibration. However, more studies of high methodological quality are needed to reach a consensus regarding muscle tendon vibration treatment protocols and their recommendation in clinical practice.

Efeitos do treinamento físico de vibração de corpo inteiro nos níveis de força de membros inferiores em idosos / Efectos del entrenamiento con ejercicios de vibración de cuerpo entero en los niveles de fuerza de miembros inferiores de adultos mayores / Effects of whole-body vibration exercises on strength levels of lower limb on elderlies

RESUMO O objetivo do presente estudo foi analisar os efeitos do exercício de vibração de corpo inteiro sobre os níveis de força nos membros inferiores de idosos. A amostra foi composta por 15 homens fisicamente ativos (idade: 62,5 ± 2,62 anos). Foram realizadas oito semanas de treinamento com plataforma vibratória, com sessões de 20 minutos de vibração utilizando frequências crescentes de 15 a 30 Hz, com exposição de 30 segundos de vibração e 30 segundos de descanso. A cada dois minutos houve um aumento de frequência de 1 Hz. Os indivíduos foram instruídos a ficar em pé, com os pés afastados na largura dos ombros, joelhos flexionados a 130°, braços estendidos, segurando firmemente a máquina. O procedimento foi realizado duas vezes por semana com intervalo de um dia. A força foi avaliada usando um dinamômetro dorsal em exercícios de extensão de joelho e extensão de coluna lombar. Os testes de força foram realizados na quarta e oitava semana após a última sessão de treinamento. Resultados: Ao final de oito semanas, foi possível observar ganhos significativos de força nos músculos envolvidos no exercício de extensão do joelho (p = 0,01) e na extensão da coluna lombar (p = 0,031). Conclusão: observou-se que o treinamento com vibrações de corpo inteiro promoveu melhora nos níveis de força nos membros inferiores dos idosos participantes do estudo.

RESUMEN El objetivo del presente estudio fue analizar los efectos del ejercicio de vibración de todo el cuerpo sobre los niveles de fuerza en los miembros inferiores de adultos mayores. La muestra estuvo formada por 15 hombres físicamente activos (edad: 62,5 ± 2,62 años). Se realizaron ocho semanas de entrenamiento con plataforma vibratoria, con sesiones de 20 minutos de vibración utilizando frecuencias crecientes de 15 a 30 Hz, con exposición de 30 segundos de vibración y 30 segundos de descanso. Cada dos minutos había un aumento de frecuencia de 1 Hz. Se indicó a los individuos que permanecieran de pie con los pies separados a la altura de los hombros, las rodillas flexionadas a 130º y los brazos extendidos sujetando firmemente los apoyamanos de la máquina. El procedimiento se realizó dos veces por semana con un intervalo de un día. La fuerza se evaluó mediante un dinamómetro dorsal en los ejercicios de extensión de rodilla y extensión de columna lumbar. Las pruebas de fuerza se realizaron en la cuarta y octava semana después de la última sesión de entrenamiento. Resultados: Al final de las ocho semanas, fue posible observar ganancias significativas en la fuerza en los músculos involucrados en el ejercicio de extensión de rodilla (p = 0,01) y en la extensión de columna lumbar (p = 0.031). Conclusión: se pudo observar que el entrenamiento con vibraciones de todo el cuerpo promovió una mejora en los niveles de fuerza en los miembros inferiores de los adultos mayores participantes del estudio.

ABSTRACT The present study was to analyze the effects of whole-body vibration exercise on strength levels in the lower limbs in elderly subjects. The sample consisted of 15 physically active individuals (62.5±2.62 years old). All volunteers were male gender. They were submitted to eight weeks of training with a vibrating platform were carried out, with sessions of 20 minutes of vibration using increasing frequencies from 15 to 30 Hz, with exposure of 30 seconds of vibration and 30 seconds of rest. Every two minutes there was an increase in the frequency of 1 Hz. The individuals were instructed to stay in the standing position with their feet shoulder-width apart, knees flexed at 130º, arms outstretched holding firmly on the machine's hand rests. The procedure was performed twice a week with an interval of one day. Strength was assessed using a dorsal dynamometer in the knee extension and lumbar spine extension exercises. Strength tests were performed in the fourth and eighth weeks after the last training session. Results: At the end of eight weeks, it was possible to observe significant gains in strength in the muscles involved in the knee extension exercise (p = 0.0001) and in the lumbar spine extension (p = 0.031) after the eight weeks of intervention. Conclusion: It was possible to observe that the whole-body vibration training promoted an improvement in the strength levels of the elderly participants in the study.

Efeito da vibração de corpo inteiro no paciente hospitalizado: revisão sistemática / Effect of whole body vibration on hospitalized patients: a systematic review

INTRODUÇÃO: O treinamento com vibração de corpo inteiro (WBV, do inglês Whole Body Vibration) foi recentemente proposto como um método de treinamento com potencial para melhorar a composição corporal e prevenir osteoporose e perda de massa óssea.18 Nos últimos anos, alguns estudos mostraram que o WBV pode ser um modo de treinamento benéfico na força, resistência física, atividades relacionadas à mobilidade (transferência, equilíbrio e caminhada) em pacientes com esclerose múltipla19, diabetes tipo 220, doença pulmonar obstrutiva crônica21 e receptores de transplante cardíaco.22 Torna-se relevante em razão ao alto impacto na funcionalidade e consequentemente qualidade de vida dos pacientes hospitalizados. OBJETIVO: Verificar o efeito da vibração de corpo inteiro no paciente hospitalizado. MÉTODOS: Revisão de ensaios clínicos controlados randomizados (ECR) e estudo piloto nas bases de dados PubMed, Cochrane Library, Medline e PEDro. As pesquisas nas bases de dados foram realizadas através de combinações (utilizando os conectores "AND" e "OR") através das estratégias de pesquisa PICOS pacientes hospitalizados, vibração de corpo inteiro, fisioterapia, e seus respectivos correlatos em inglês: "hospitalized patients", "whole body vibration", "physiotherapy". Utilizou-se a escala PEDro com o ponto de corte ≥5 para análise da qualidade metodológica. Os critérios de elegibilidade; incluiu pacientes adultos (com idade ≥18 anos); um desenho de ensaio clínico controlado randomizado e estudo piloto; pacientes que utilizaram a vibração de corpo inteiro no âmbito hospitalar. RESULTADOS: Foram incluídos 6 artigos, publicados entre os anos 2014 e 2018, a terapia mostrou-se eficaz em pacientes hospitalizados, havendo significância em alguns desfechos TC6- 167,9 ± 117,46m para 263,45±22124,13m; p<0,001 e VEF1- 32,71 ±13,18% pred. para 3,71± 13,89%, entretanto não houve diferença estatística na PA e FC. CONCLUSÃO: O uso da vibração de corpo inteiro mostrou-se segura e viável em pacientes hospitalizados. O TC6 e o VEF1 apresentado em todos os artigos demonstraram significantes, entretanto não houve diferença estatística na PA e FC. Portanto, é necessário ensaios clínicos randomizados para investigar a eficácia e os efeitos adversos dessa terapia. Embora efeitos positivos tenham sido relatados, sugerimos outras investigações em maior escala com parâmetros controlados e protocolos bem elaborados.

INTRODUCTION: Whole Body Vibration (WBV) training was recently proposed as a training method with the potential to improve body composition and prevent osteoporosis and bone loss.18 In recent years, some studies have shown that WBV can be a beneficial training mode in strength, physical endurance, mobilityrelated activities (transfer, balance, and walking) in patients with multiple sclerosis19, type 2 diabetes20, chronic obstructive pulmonary disease21, and recipients of heart transplantation.22 It becomes relevant due to the high impact on the functionality and consequently the quality of life of hospitalized patients. OBJECTIVE: To verify the effect of whole-body vibration in hospitalized patients. METHODS: Review randomized controlled clinical trials (RCT) and a pilot study in PubMed, Cochrane Library, Medline, and PEDro databases. The searches in the databases were carried out through combinations (using the "AND" and "OR" connectors) through the search strategies PICOS hospitalized patients, whole-body vibration, physiotherapy, and their respective counterparts in English: "hospitalized patients" "whole-body vibration," "physiotherapy. The PEDro scale with a cutoff point ≥5 was used to analyze the methodological quality. Eligibility criteria; included adult patients (aged ≥18 years); a randomized controlled clinical trial and pilot study design; patients who used whole-body vibration in the hospital setting. RESULTS: Six articles published between 2014 and 2018 were included. The therapy proved to be effective in hospitalized patients, with significance in some outcomes 6MWT- 167.9 ± 117.46m to 263.45 ±22124.13m; p<0.001 and FEV1-32.71 ±13.18% pred. for 3.71 ± 13.89%, however, there was no statistical difference in BP and HR. CONCLUSION: The use of whole-body vibration proved safe and viable in hospitalized patients. The 6MWT and FEV1 presented in all articles were significant. However, there was no statistical difference in BP and HR. Therefore, randomized clinical trials are needed to investigate this therapy's efficacy and adverse effects. Although positive effects have been reported, we suggest further investigations with controlled parameters and well-designed protocols on a larger scale.

Effectiveness of whole-body vibration training on exercise ability and quality of life of COPD patients: a Meta-analysis / 中国实用护理杂志

Objective:To evaluate the effect of whole-body vibration training on exercise ability and quality of life in patients with Chronic obstructive pulmonary disease (COPD).Methods:Randomized controlled trials on the application of whole-body vibration training in COPD patients were retrieved from PubMed, Medline, EMbase, Web of Science, Wanfang, VIP, CNKI, Chinese biomedical literature database, and the literature was independently screened according to the inclusion and exclusion criteria, the data were extracted, a literature quality evaluation was performed, and the data were meta analyzed by using RevMan5.3.Results:A total of 9 RCTs was included in this study. Meta-analysis results showed that whole-body vibration training could improve the exercise endurance in COPD patients ( WMD=41.65, 95%CI 6.68-76.63, P=0.02), and improve their balance ability ( WMD=-2.31, 95%CI-3.38--1.23, P<0.01). There was no significant difference in improving BODE index, quality of life and lung function in COPD patients ( P>0.05). Conclusions:Whole-body vibration training helps improve exercise endurance and balance in COPD patients as a complementary or alternative exercise method for COPD patients. The impact on BODE index, quality of life, and lung function still needs further evaluation through clinical multicenter, large sample, high-quality research.

Dynamic Characteristics of Lenke3 Type Idiopathic Scoliosis / 医用生物力学

Objective To investigate dynamic response of the finite element model of Lenke3 type scoliosis. Methods The finite element model was established based on CT scanning images from a patient with Lenke3 type scoliosis, and validation of the model was also conducted. Modal analysis, harmonic response analysis and transient dynamic analysis were carried out on the model. Results The first order natural frequency of this model was only 1-2 Hz.The amplitude of the finite element model was the largest at the first natural frequency. At the same resonance frequency, the amplitude of the thoracic curved vertebra was larger than that of the lumbar curved vertebra.The amplitude from T6 vertebra to L2 vertebra decreased successively. Conclusions The degree of spinal deformity may affect the perception of spine vibration, and the higher the degree of spinal deformity, the higher the sensitivity to vibration. The first natural frequency is most harmful to Lenke3 type scoliosis patients. Under cyclic loading, the thoracic curved vertebra is more prone to deformation than the lumbar curved vertebra. The closer to T1 segment, the greater the amplitude of the vibration is.

Advances on nervous system impairment induced by hand-transmitted vibration / 环境与职业医学

Hand-transmitted vibration is one of the most common physical harmful factors in the workplace，and the hand-arm vibration syndrome caused by it lacks effective treatment, and seriously affects the physical and mental health of the involved workers. As an important target for hand-transmitted vibration, the nervous system has attracted increasing attention from scholars, and much progress has been made in recent years in studying the effects of hand-transmitted vibration on nervous system function. Based on related literature at home and abroad, this paper introduced the hand-transmitted vibration-associated damage in peripheral, autonomic, and central nervous systems, and then explored the associated influence factors, like vibration frequency, environment temperature, and individual factors. The potential directions for further research were also proposed.