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1.
Rev. bras. med. esporte ; 29: e2022_0295, 2023. tab, graf
Article in English | LILACS | ID: biblio-1407659

ABSTRACT

ABSTRACT Introduction: Core strength training focuses mainly on the muscle group and neuromuscular system of the central area of the human body to gain strength and stability for complex movements. Studies have reported the effect of core training on high-capacity athletes, but there is still a gap regarding the impacts on physical capacity in running athletes. Objective: To study the effects of strength training on athletes' core and the direct impacts on running quality. Methods: Athletes of the men's running team at the athletic training center of the Institute of Physical Education were core strength trained for 10 to 12 weeks. After the period, physical tests, according to predetermined protocols. The data were compared before, after the intervention, and after statistical treatment, and the findings were discussed according to the scientific literature. Results: After 12 weeks of training, among the five sports skills, there was only a significant difference before and after training of body lateral flexion (right side) (P<0.05), and there was no significant difference before and after training of the other four sport skills (P > 0.05). Conclusions: Through the static and dynamic exercises of core strength training, we can effectively improve the proprioception intervention in body movement so that runners can more accurately control their joints and muscles, ensuring movement and postural accuracy. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.


RESUMO Introdução: O treinamento de força do core concentra-se principalmente no grupo muscular e no sistema neuromuscular da área central do corpo humano, com o propósito de ganho de força e estabilidade para movimentos complexos. Estudos relatam o efeito do treinamento do core em atletas de alta capacidade, porém ainda há uma lacuna quanto aos impactos sobre a capacidade física em atletas de corrida. Objetivo: Estudar os efeitos resultantes do treinamento de força no core dos atletas e os impactos diretos na qualidade da corrida. Métodos: Os atletas da equipe masculina de corrida, no centro de treinamento de atletismo do Instituto de Educação Física, foram treinados com força fundamental por 10 a 12 semanas. Após o período, testes físicos, segundo protocolos pré-determinados, foram executados. Os dados foram comparados antes e após a intervenção, após o tratamento estatístico, os achados foram discutidos segundo a literatura cientifica. Resultados: Após 12 semanas de treinamento, entre as cinco habilidades esportivas, houve apenas diferença significativa antes e depois do treinamento de flexão lateral corporal (lado direito) (P<0,05), e não houve diferença significativa antes e depois do treinamento das outras quatro habilidades esportivas (P > 0,05). Conclusão: Através dos exercícios estáticos e dinâmicos do treinamento de força do core, podemos melhorar efetivamente a intervenção da propriocepção no movimento corporal, para que os corredores possam controlar com mais precisão as articulações e músculos, garantindo a precisão do movimento e postural. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.


RESUMEN Introducción: El entrenamiento de la fuerza del core se concentra principalmente en el grupo muscular y en el sistema neuromuscular de la zona central del cuerpo humano, con el fin de ganar fuerza y estabilidad para los movimientos complejos. Los estudios han informado sobre el efecto del entrenamiento del tronco en los atletas de alta capacidad, pero todavía hay un vacío en cuanto a los impactos en la capacidad física en los atletas que corren. Objetivo: Estudiar los efectos resultantes del entrenamiento de fuerza en el core de los atletas y los impactos directos en la calidad de la carrera. Métodos: Los atletas del equipo masculino de atletismo, en el centro de entrenamiento de atletismo del Instituto de Educación Física, fueron entrenados con fuerza central durante 10 a 12 semanas. Tras el periodo, se ejecutaron pruebas físicas, según protocolos predeterminados. Los datos se compararon antes y después de la intervención, tras el tratamiento estadístico, los resultados se discutieron de acuerdo con la literatura científica. Resultados: Después de 12 semanas de entrenamiento, entre las cinco habilidades deportivas, sólo hubo diferencia significativa antes y después del entrenamiento de la flexión lateral del cuerpo (lado derecho) (P<0,05), y no hubo diferencia significativa antes y después del entrenamiento de las otras cuatro habilidades deportivas (P > 0,05). Conclusiones: A través de ejercicios estáticos y dinámicos de entrenamiento de la fuerza del core, podemos mejorar eficazmente la intervención de la propiocepción en el movimiento del cuerpo, de modo que los corredores puedan controlar con mayor precisión las articulaciones y los músculos, asegurando la precisión del movimiento y la postura. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.


Subject(s)
Humans , Male , Physical Endurance/physiology , Running/physiology , Athletic Performance/physiology , Endurance Training/methods
2.
Rev. bras. med. esporte ; 29: e2022_0169, 2023. tab
Article in English | LILACS | ID: biblio-1394834

ABSTRACT

ABSTRACT Introduction: Muscle injury in ski sports training has gradually increased, greatly impairing performance in ice and snow sports competitions. Objective: To study muscle injury and muscle movement during ice and snow sports training and the rehabilitation of muscle injuries. Methods: Thirty skiers with knee muscle injuries were selected as subjects and underwent rehabilitation training for six weeks, and the indicators were statistically evaluated. Results: The ski injuries were mainly muscle strain, muscle or ligament strain, and ligament rupture. The indices after treatment were significantly different from those before treatment (P < 0.05); compared with the three rehabilitation programs, the improvement of each index in group C was significantly different from that in the other two groups (P < 0.05), while there was no significant difference in the improvement of each index between the multi-angle isometric training treatment in group A and the proprioceptive neuromuscular stimulation technique in group B (P>0.05). Conclusion: The influence of recovery training technology on knee muscle re-education was proposed, and a rehabilitation plan for skiing was presented. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.


RESUMO Introdução: O quadro de lesão muscular no treinamento esportivo de esqui tem aumentado gradualmente, prejudicando muito o desempenho das competições esportivas de gelo e neve. Objetivo: Estudar a lesão muscular e o movimento muscular durante o treinamento esportivo no gelo e na neve, bem como a reabilitação das lesões musculares. Métodos: Trinta esquiadores com lesão muscular no joelho foram selecionados como sujeitos e submetidos a treinamento de reabilitação por um total de 6 semanas, tendo os indicadores sido avaliados estatisticamente. Resultados: Os tipos de lesões no esqui foram principalmente tensão muscular, tensão muscular ou ligamentar e ruptura ligamentar. Os índices após o tratamento foram significativamente diferentes daqueles antes do tratamento (P < 0,05); comparado com os três programas de reabilitação, a melhora de cada índice no grupo C foi significativamente diferente da dos outros dois grupos (P < 0,05), enquanto não houve diferença significativa na melhora de cada índice entre o tratamento de treinamento isométrico multiangular no grupo A e a técnica de estimulação neuromuscular proprioceptiva no grupo B (P>0,05). Conclusão: A influência da tecnologia de treinamento de recuperação na reeducação muscular do joelho foi proposta, e foi apresentado um plano de reabilitação para a prática de esqui. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.


RESUMEN Introducción: El cuadro de lesiones musculares en el entrenamiento de los deportes de esquí ha ido aumentando progresivamente, lo que perjudica en gran medida el rendimiento en las competiciones de deportes de hielo y nieve. Objetivo: Estudiar las lesiones musculares y el movimiento muscular durante el entrenamiento de los deportes de hielo y nieve, así como la rehabilitación de las lesiones musculares. Métodos: Se seleccionaron como sujetos treinta esquiadores con lesiones musculares en la rodilla y se sometieron a un entrenamiento de rehabilitación durante un total de 6 semanas, y se evaluaron estadísticamente los indicadores. Resultados: Los tipos de lesiones de esquí fueron principalmente la distensión muscular, la distensión muscular o de ligamentos y la rotura de ligamentos. Los índices después del tratamiento fueron significativamente diferentes de los anteriores (P < 0,05); en comparación con los tres programas de rehabilitación, la mejora de cada índice en el grupo C fue significativamente diferente de la de los otros dos grupos (P < 0,05), mientras que no hubo diferencias significativas en la mejora de cada índice entre el tratamiento de entrenamiento isométrico multiángulo en el grupo A y la técnica de estimulación neuromuscular propioceptiva en el grupo B (P>0,05). Conclusión: Se propuso la influencia de la tecnología de entrenamiento de recuperación en la reeducación muscular de la rodilla y se presentó un plan de rehabilitación para el esquí. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.


Subject(s)
Humans , Male , Female , Athletic Injuries/rehabilitation , Skiing/injuries , Endurance Training/methods , Muscular Diseases/rehabilitation
3.
Rev. cuba. invest. bioméd ; 422023. ilus, tab
Article in Spanish | LILACS, CUMED | ID: biblio-1508218

ABSTRACT

Introducción: El entrenamiento deportivo es un proceso que requiere una planificación orientada a la adaptación del cuerpo a las cargas internas versus cargas externas; de allí, surge la necesidad de conocer el comportamiento de algunas enzimas musculoesqueléticas a través del control bioquímico y fisiológico del entrenamiento en el atletismo de medio fondo. Objetivo: Analizar los cambios enzimáticos de la creatinfosfoquinasa y la lactodeshidrogenasa durante el entrenamiento anaeróbico láctico y su influencia en la capacidad aeróbica en atletas de medio fondo. Método: Se utilizó el método descriptivo comparativo con una muestra de 20 sujetos aleatorizados en dos grupos: experimental y control; el análisis se realizó bajo el modelo estadístico Anova descriptiva, pruebas T y diseño de medidas repetidas con un intervalo del 95 por ciento de confianza (p<0,05). Resultados: En las variables creatinfosfoquinasa y lactodeshidrogenasa inicial y final no hubo variaciones significativas intergrupos; se observaron diferencias en la creatinfosfoquinasa en varianza (p=0,022) del orden del 97,8 por ciento; que en promedio (p=0,088) representó los niveles alcanzados del 91,2 por ciento. En las medidas repetidas no se presentaron cambios estadísticamente significativos intergrupos. Para la variable del VO2máx se aplicó la prueba T para comparar los estados inicial y final en cada grupo y hubo diferencias en ambos grupos (control p=0,002; experimental p=0,000). Conclusiones: No hubo cambios enzimáticos importantes durante los entrenamientos anaeróbico láctico y aeróbico, a su vez, el entrenamiento anaeróbico láctico si tuvo influencia en la capacidad aeróbica(AU)


Introduction: Sports training is a process that requires a planning oriented to the adaptation of the body to internal loads versus external loads; from there, arises the need to know the behavior of some musculoskeletal enzymes through the biochemical and physiological control of training in middle-distance athletics. Objective: To analyze the enzymatic changes of creatine phosphokinase and lactodehydrogenase during lactic anaerobic training and their influence on aerobic capacity in middle-distance athletes. Methods: The descriptive comparative method was used with a sample of 20 subjects randomized in two groups: experimental and control; the analysis was performed under the descriptive Anova statistical model, T-tests and repeated measures design with a 95 percent confidence interval (p<0.05). Results: In the initial and final creatine phosphokinase and lactodehydrogenase variables, there were no significant intergroup variations; differences were observed in creatine phosphokinase regarding variance or standard deviation (p=0.022) in the order of 97.8 percent; which in average (p=0.088) represented the levels reached of 91.2 percent. In the repeated measures, there were no statistically significant intergroup changes. For the VO2max variable, the T-test was applied to compare the initial and final states in each group and there were differences in both groups (control p=0.002; experimental p=0.000). Conclusions: There were no important enzymatic changes during lactic anaerobic and aerobic training, and lactic anaerobic training had an influence on aerobic capacity(AU)


Subject(s)
Humans , Exercise , Endurance Training/methods , Oxygen Consumption , Track and Field/education , Comparative Study , Epidemiology, Descriptive
4.
J. Phys. Educ. (Maringá) ; 33: e3334, 2022. tab, graf
Article in English | LILACS | ID: biblio-1385998

ABSTRACT

ABSTRACT The aim of the present study was to find out the effect of varied plyometric training (land plyometric training, aqua plyometric training and weighted vest aqua-plyometric training) on anaerobic power of school athletes. A total of forty eight (n= 48) district level school athletes were randomly selected. All the subjects were divided into four equal groups: i) land plyometric training group (n=12), ii) aqua plyometric training group (n=12), iii) aqua-plyometric training with weighted vest group (n=12) and iv) control group (n=12). The varied plyometric training was intervened for fourteen weeks in the respective training groups. In the present study, anaerobic power was considered as the dependent variable, and it was measured by Margaria-Kalamen power test. To draw statistical inferences on anaerobic power among the groups in pre and post intervention conditions, ANCOVA was used, followed by Tukey's LSD post-hoc test. The significance of the means was tested at the 0.05 level. Different plyometric training groups improved significantly with respect to the control group in anaerobic power. Therefore, various plyometric training was found as an effective means for developing anaerobic power. A significant difference was also observed between the aqua-plyometric training with weighted vest group and land plyometric training group in anaerobic power. However, rest of the experimental groups didn't differ significantly. Aqua-plyometric training with weighted vest is a more effective training method than land plyometric training for improving the anaerobic power of the school athletes.


RESUMO O objetivo do presente estudo foi descobrir o efeito do treinamento pliométrico variado (treinamento pliométrico terrestre, treinamento aquapliométrico e treinamento aquapliométrico com colete ponderado) na potência anaeróbica de atletas escolares. Um total de quarenta e oito (n= 48) atletas escolares de nível distrital foram selecionados aleatoriamente. Todos os sujeitos foram divididos em quatro grupos iguais: i) grupo treinamento pliométrico terrestre (n=12), ii) grupo treinamento aquapliométrico (n=12), iii) grupo treinamento aquapliométrico com colete ponderado (n=12) e iv) grupo controle (n=12). O treino pliométrico variado foi intervencionado durante quatorze semanas nos respectivos grupos de treino. No presente estudo, a potência anaeróbia foi considerada como variável dependente e foi mensurada pelo teste de potência de Margaria-Kalamen. Para fazer inferências estatísticas sobre a potência anaeróbica entre os grupos nas condições pré e pós-intervenção, foi utilizada a ANCOVA, seguida do teste post-hoc de Tukey LSD. A significância das médias foi testada no nível 0,05. Diferentes grupos de treinamento pliométrico melhoraram significativamente em relação ao grupo controle na potência anaeróbica. Portanto, vários treinamentos pliométricos foram encontrados como um meio eficaz para o desenvolvimento da potência anaeróbica. Uma diferença significativa também foi observada entre o grupo de treinamento aquapliométrico com colete ponderado e o grupo de treinamento pliométrico terrestre na potência anaeróbica. No entanto, o resto dos grupos experimentais não diferiram significativamente. O treinamento aquapliométrico com colete ponderado é um método de treinamento mais eficaz do que o treinamento pliométrico terrestre para melhorar a potência anaeróbica dos atletas escolares.


Subject(s)
Humans , Male , Female , Adolescent , Adolescent , Athletes/education , Plyometric Exercise/methods , Physical Education and Training/methods , Exercise , Mentoring/methods , Water Sports/education , Endurance Training/methods
5.
Article in Spanish | LILACS | ID: biblio-1384320

ABSTRACT

RESUMEN Objetivo: Determinar cuáles son los efectos que tiene el fallo muscular en el desarrollo de la hipertrofia en el entrenamiento de contra resistencia. Métodos: Estudio de tipo revisión sistemática, es decir, de enfoque cualitativo y de diseño no experimental. Se realizó una búsqueda sistemática en cinco bases de datos (Pubmed, Google Académico, ScienceDirect, Scopus, Sportdiscus). Después de analizar 405 estudios, fue preciso considerar su utilidad y relevancia con respecto a la revisión, así como también la credibilidad o experiencia del autor en la temática. Resultados: Después del cribado correspondiente y la evaluación metodológica 9 estudios cumplieron con los criterios de inclusión, según lo obtenido de esta revisión la utilización del Fallo Muscular (FM) no mostró beneficios adicionales en el aumento de la masa muscular. Además, se mostró que no existen diferencias significativas cuando se comparan cargas altas y bajas utilizando esta variable. Conclusión: Se determinó que la variable volumen es más importante en desarrollos hipertróficos independientemente de si un ejercicio se ejecuta o no hacia el fallo muscular, asimismo, es más beneficioso para la hipertrofia cuando las repeticiones no se llevan al fallo muscular si no se dejan cerca de este.


ABSTRACT Objective: To determine what are the effects of muscle failure on the development of hypertrophy in counter resistance training. Method: It is a systematic review type of study, that is, with a qualitative approach and a non-experimental design. A systematic search was carried out in 5 databases (Pubmed, Google Scholar, ScienceDirect, Scopus, Sportdiscus). After analyzing 405 studies, it was necessary to consider their usefulness and relevance in respect of the review, as well as the credibility or experience of the author on the subject. Results: After the corresponding screening and methodological evaluation, 9 studies met the inclusion criteria, as obtained from this review, the use of Muscle Failure (FM) did not show additional benefits in increasing muscle mass. In addition, it was shown that there are no significant differences when comparing high and low loads using this variable. Conclusion: It was determined that the volume variable is more important in hypertrophic developments regardless of whether or not an exercise is executed towards muscle failure, it is also more beneficial for hypertrophy when repetitions do not lead to muscle failure but are close to it.


Subject(s)
Humans , Endurance Training/methods , Hypertrophy/diagnosis , Exercise , Muscle Fatigue , Resistance Training
6.
Int. j. cardiovasc. sci. (Impr.) ; 34(5): 508-514, Sept.-Oct. 2021. tab, graf
Article in English | LILACS | ID: biblio-1340058

ABSTRACT

Abstract Background: Conventional aerobic training is the first choice in cardiac rehabilitation for patients with chronic heart failure (CHF). However, high-intensity interval training (HIIT) may be an alternative, although it has little evidence. Objectives: To evaluate the effect of continuous aerobic training (CAT) or HIIT on exercise tolerance in CHF patients. Methods: Retrospective study with 30 patients, of both genders, members of a 10-week CAT or HIIT program. The control group (CON) consisted of patients who did not participate voluntarily in the program. Peak oxygen uptake (VO2peak), thresholds (LV1 and LV2), and ventilatory efficiency in the production of dioxide (VE/VCO2 slope), oxygen uptake efficiency (OUES), and VO2 recovery kinetics were analyzed. A two-way or repeated measures ANOVA was used, followed by Fisher's post-hoc test (p<0.05). Results: After 10 weeks of training, the CAT group increased the treadmill speed at LV1 (p=0.040), while the HIIT increased both the speed (p=0.030) and incline of the treadmill (p<0.001) for VO2peak and LV2, as well as the total time of the cardiopulmonary test. The VE/VCO2 slope was lower than that predicted for CAT (p=0.003) and HIIT (p=0.008). There was no change in VO2peak, recovery of heart rate (HR), and VO2, VE/VCO2, and OUES in both groups. Conclusions: After 10 weeks, both CAT and HIIT increased the tolerance to physical exercise. However, HIIT showed improvement in more parameters, differently from CAT.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Exercise Tolerance , Cardiac Rehabilitation/methods , High-Intensity Interval Training/methods , Endurance Training/methods , Heart Failure/rehabilitation , Exercise , Retrospective Studies , Exercise Movement Techniques , Exercise Therapy/methods , Physical Exertion
7.
Rev. bras. med. esporte ; 27(2): 207-211, Apr.-June 2021. tab, graf
Article in English | LILACS | ID: biblio-1280070

ABSTRACT

ABSTRACT Introduction: Ischemic preconditioning (IPC) has been described in the literature as a resource capable of improving physical performance. Objective: The purpose of this randomized double-blind study was to evaluate the influence of IPC on the neuromuscular performance of trained individuals. Methods: Twenty-four (24) resistance training participants (6 of them women) with a mean age of 25.8 ± 4.6 years were selected and divided into two groups: the upper limb group (ULG) composed of 12 individuals (4 women) and the lower limb group (LLG) composed of 12 individuals (2 women). The maximum repetitions test was applied in the bench press for the ULG and in the 45° leg press for the LLG, with 50% of the one-repetition maximum under control, placebo and IPC conditions, at a random interval of 72 hours between tests. The IPC was applied four hours before the tests by means of an analog sphygmomanometer cuff inflated to 220 mmHg on the arm for the ULG and on the thigh for LLG, with three cycles of five minutes each of ischemia and reperfusion, alternating between the right and left sides. For the placebo, the cuff was inflated to 40 mmHg without causing ischemia. The significance level for the Wilcoxon test was p <0.017, due to the Bonferroni correction. The effect size (ES) was also analyzed. Results: With IPC, the ULG performed 34.8 ± 4.8 repetitions, representing an improvement of 11.29% (IPC vs. control, ES = 0.68 and p = 0.002) and the LLG performed 40.5 ± 15.7 repetitions, representing an improvement of 37.47% (IPC vs. control, ES = 0.84 and p = 0.002). No significant improvements were observed for the placebo in either group. Conclusion: Our data showed that IPC positively influenced neuromuscular performance of both the upper and lower limbs. Level of evidence II; Therapeutic studies investigating the results of treatment (Prospectived comparative studye).


RESUMEN Introducción: El preacondicionamiento isquémico (PCI) ha sido descrito en la literatura como un recurso capaz de mejorar el desempeño físico. Objetivo: El objetivo de este estudio aleatorio doble ciego fue evaluar la influencia del PCI en el desempeño neuromuscular de individuos entrenados. Métodos: Fueron seleccionados 24 individuos (6 mujeres) con promedio de edad de 25,8 ± 4,6 años, practicantes de entrenamiento resistido, divididos en dos grupos, siendo un grupo de miembros superiores (GMS) compuesto por 12 individuos (4 mujeres) y grupo de miembros inferiores (GMI) compuesto por 12 individuos (2 mujeres). El test de repeticiones máximas fue aplicado en el ejercicio de supino para el GMS y en el leg press 45° para el GMI con 50% de una repetición máxima, en las condiciones de control, placebo y PCI, de forma aleatoria con intervalo de 72 horas entre los tests. El PCI fue aplicado cuatro horas antes de los tests mediante un manguito de esfigmomanómetro analógico inflado a 220 mmHg en el brazo para el GMS y en el muslo para el GMI, siendo tres ciclos de cinco minutos de isquemia y cinco minutos de reperfusión, alternando los lados derecho e izquierdo. Para el placebo, el manguito quedó en 40 mmHg, sin provocar isquemia. El nivel de significancia del test de Wilcoxon fue p <0,017, debido a la corrección de Bonferroni. El tamaño del efecto (TE) también fue analizado. Resultados: Con el PCI, el GMS realizó 34,8 ± 4,8 repeticiones, representando mejora de 11,29% (PCI vs control, TE = 0,68 y p = 0,002) y el GMI realizó 40,5 ± 15,7 repeticiones, representando mejora de 37,47% (PCI vs control, TE = 0,84 y p = 0,002). Con el placebo, ambos grupos no mostraron mejora. Conclusión: Nuestros datos mostraron que el PCI influenció positivamente el desempeño neuromuscular tanto de miembros superiores como inferiores. Nivel de evidencia II; Estudios terapéuticos: investigación de los resultados del tratamiento (estudio comparativo prospectivo).


RESUMO Introdução: O pré-condicionamento isquêmico (PCI) tem sido descrito na literatura como um recurso capaz de melhorar o desempenho físico. Objetivo: O objetivo deste estudo randomizado duplo cego foi avaliar a influência do PCI no desempenho neuromuscular de indivíduos treinados. Métodos: Foram selecionados 24 indivíduos (6 mulheres) com média de idade de 25,8 ± 4,6 anos, praticantes de treinamento resistido, divididos em dois grupos, sendo um grupo de membros superiores (GMS), composto por 12 indivíduos (4 mulheres) e grupo de membros inferiores (GMI), composto por 12 indivíduos (2 mulheres). O teste de repetições máximas foi aplicado no exercício de supino para o GMS e no leg press 45° para o GMI com 50% de uma repetição máxima, nas condições de controle, placebo e PCI, de forma aleatória com intervalo de 72 horas entre os testes. O PCI foi aplicado quatro horas antes dos testes por meio de um manguito de esfigmomanômetro analógico inflado a 220 mmHg no braço para o GMS e na coxa para o GMI, sendo três ciclos de cinco minutos de isquemia e cinco minutos de reperfusão, alternando os lados direito e esquerdo. Para o placebo, o manguito ficou em 40 mmHg, sem provocar isquemia. O nível de significância do teste de Wilcoxon foi de p < 0,017, devido à correção de Bonferroni. O tamanho do efeito (TE) também foi analisado. Resultados: Com o PCI, o GMS realizou 34,8 ± 4,8 repetições, representando melhora de 11,29% (PCI vs. controle, TE = 0,68 e p = 0,002) e o GMI realizou 40,5 ± 15,7 repetições, representando melhora de 37,47% (PCI vs. controle, TE = 0,84 e p = 0,002). Com o placebo, ambos os grupos não apresentaram melhora. Conclusão: Nossos dados mostraram que o PCI influenciou positivamente o desempenho neuromuscular tanto de membros superiores quanto inferiores. Nível de evidência II; Estudos terapêuticos-Investigação dos resultados do tratamento (Estudo prospectivo comparativo).


Subject(s)
Humans , Male , Female , Adult , Young Adult , Ischemic Preconditioning , Muscle Strength/physiology , Athletic Performance/physiology , Endurance Training/methods , Muscles/blood supply , Tensile Strength , Double-Blind Method , Exercise Test/methods
8.
Int. j. cardiovasc. sci. (Impr.) ; 34(3): 294-299, May-June 2021. tab, graf
Article in English | LILACS | ID: biblio-1250098

ABSTRACT

Abstract Background Resistance training is used in different exercise programs, with different objectives and different levels of physical fitness. Training-related variables, such as volume, rest time and intensity, can affect the response of blood pressure (BP), but studies on the effect of these variables on BP are still needed. Objective To evaluate the acute response of BP in trained individuals undergoing two different methods of resistance training. Methods The sample was divided into three groups: (1) the German volume training (GVT) (n= 15), which consisted of 10 series of 10 repetitions at 50% of 1-repetition maximum (RM) with intervals of 30 seconds; (2) the sarcoplasm stimulating training (SST) (n= 16), performed at 8 RM and 85% of 1-RM and interval of 10 seconds until failure, followed by removal of 20% of weight and repetition of the whole series (total of three sets), and the control group (CG) (n= 15) who underwent BP measurements only. The two-way repeated measures ANOVA was used for analysis of variations, and a p< 0.05 was considered statistically significant. Results In the within-group analysis, a significant lowering of systolic blood pressure (SBP) was found at 10 minutes (125.4±10.8 mmHg, p= 0.045) and 20 minutes (124.5±8.5 mmHg, p= 0.044) post-training compared with immediately after training. In the between-group comparison, higher SBP values were observed immediately after training in the SST group (142.1±28.2, p= 0.048) compared with the CG. Conclusion High-volume and high-intensity resistance training programs did not cause abnormal changes in blood pressure. (Int J Cardiovasc Sci. 2021; [online].ahead print, PP.0-0)


Subject(s)
Humans , Male , Adult , Young Adult , Blood Pressure , Circuit-Based Exercise/methods , Endurance Training/methods , Exercise , Physical Fitness , Resistance Training , Hypertension/prevention & control
9.
Int. j. cardiovasc. sci. (Impr.) ; 34(2): 223-230, Mar.-Apr. 2021. tab, graf
Article in English | LILACS | ID: biblio-1154557

ABSTRACT

Abstract Background: Nasal mucociliary clearance (NMC) responds to autonomic activity through exercise. However, there is a gap in the literature on how NMC responds to resistance exercise. Objective: To evaluate the acute effects of resistance tube exercise on NMC and the autonomic nervous system in smokers. Methods: Clinical trial was performed with 18 individuals. Personal, anthropometric, and smoking history data were collected, and a pulmonary function test was performed by spirometry. The fatigue resistance test was performed in order to obtain the number of repetitions for the prescription of exercise. Heart rate variability was captured using a monitor. Subsequently, the exhaled carbon monoxide (exCO) was measured and a saccharin transit test (STT) was performed for NMC. Results: The non-smoking group presented a significant decrease of 4.0±3.2 minutes in STT after P1 (p=0.021). Regarding HRV, the smoking group presented a significant decrease of mean RR (−90.3±53.0; p=0.011), SDNN (−560.0±1333.2; p=0.008), RMSSD (−13.6±10.5; p=0.011), LFms² (−567.3±836.1; p=0.008), HFms² (−223.8±231.8; p=0.008), SD1 (−9.7±7.4; p=0.011) and SD2 (−20.7±17.0; p=0.008), and an increase of mean HR (10.2±5.9; p=0.011) after P2. In the non-smoking group, a significant decrease was observed in the mean RR (−67.1±70.7; p=0.038), SDNN (−16.8±15.0; p=0.015), RMSSD (−12.3±14.7; p=0.011), LFms² (−831.2±1347.5; p=0.015), SD1 (−8.7±10.4; p=0.011), and SD2 (−22.0±19.1; p=0.015), while an increase in HR (7.1±7.3; p=0.028) was found after P1. Conclusions: The intensity of the resistance exercise applied to the patient was not enough to promote changes in smokers. By contrast, in non-smokers, the same intensity of exercise was effective in promoting alterations in the NMC and autonomic activity. (Int J Cardiovasc Sci. 2021; 34(2):223-230)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Mucociliary Clearance , Smokers , Endurance Training/methods , Respiratory Function Tests , Exercise , Smoking/adverse effects
10.
Rev. bras. ciênc. mov ; 29(1): [1-28], jan.-mar. 2021. tab, ilus
Article in Portuguese | LILACS | ID: biblio-1348230

ABSTRACT

: O exercício físico, em especial a corrida de rua tem sido recomendada para prevenção e tratamento de doenças crônicas não transmissíveis. O objetivo desta revisão sistemática foi verificar os efeitos de diferentes métodos de treinamento sobre os indicadores cardiometabólicos de corredores recreacionais. As bases de dados eletrônicas utilizadas na presente pesquisa foram: PUBMED, SCIENCE DIRECT, LILACS e COCHRANE LIBRARY, usando os descritores agrupados segundo o método PICO; População ("adults" OR "young adult" OR "middle aged") AND Intervenção ("endurance training" OR "aerobic training" OR "running") OR Comparação ("recreational runners" OR "jogging") AND Outcome/Desfecho ("cardiovascular risk factors" OR "cardiometabolic risk factors" OR "metabolic syndrome"). Na seleção os artigos foram excluídos por título, resumo e texto. Obteve-se um total de 813 artigos encontrados, no qual nove (9) preencheram os critérios de inclusão e baixo risco de viés de acordo com a Escala Testex. Foram encontrados três métodos de treinamento: Combinado (Contínuo +Intervalado); Contínuo e Intervalado. Considerando a somatória das amostras dos nove estudos, um total de 604 indivíduos (466 homens e 138 mulheres) participaram dos ensaios. Os diferentes métodos de treinamentos resultaram na redução dos níveis de triglicerídeos, insulina e glicose e na redução do colesterol total e LDL, e consequentemente o aumento do HDL. Na composição corporal houve diminuição significativa do peso e da gordura corporal, do IMC, na medida da circunferência da cintura, e no aumento da capacidade aeróbia (VO2). Concluiu-se que os treinamentos combinado, contínuo e intervalado podem ser aplicados para melhora dos indicadores cardiometabólicos, cada um dentro da sua especificidade de frequência, volume e intensidade.(AU)


Physical exercise, especially running, has been recommended for the prevention and treatment of chronic non-communicable diseases. The objective of this systematic review was to verify the effects of different training methods on the cardiometabolic indicators of recreational runners. The electronic databases used in the present research were: PUBMED, SCIENCE DIRECT, LILACS and COCHRANE LIBRARY, using the descriptors grouped according to the PICO method; Population ("adults" OR "young adult" OR "middle aged") AND Intervention ("endurance training" OR "aerobic training" OR "running") OR Comparison ("recreational runners" OR "jogging") AND Outcome / Outcome ("Cardiovascular risk factors" OR "cardiometabolic risk factors" OR "metabolic syndrome"). In the selection, articles were excluded by title, abstract and text. A total of 813 articles were obtained, in which nine (9) met the inclusion criteria and low risk of bias according to the Testex Scale. Three training methods were found: Combined (Continuous + Interval); Continuous and Interval. Considering the sum of the samples from the nine studies, a total of 604 individuals (466 men and 138 women) participated in the trials. The different training methods resulted in a reduction in the levels of triglycerides, insulin and glucose and in the reduction of total cholesterol and LDL, and consequently an increase in HDL. In body composition, there was a significant decrease in weight and body fat, in BMI, as measured by waist circumference, and in increased aerobic capacity (VO2). It is concluded that combined, continuous and interval training can be applied to improve cardiometabolic indicators, each within its specific frequency, volume and intensity.(AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Running/physiology , Biomarkers/blood , Physical Fitness/physiology , Endurance Training/methods , Oxygen Consumption/physiology , Triglycerides/blood , Body Composition , Cholesterol/blood , Arterial Pressure/physiology , Cardiometabolic Risk Factors , Glucose/analysis , Heart Rate/physiology , Insulin/blood
12.
Article in English | LILACS | ID: biblio-1343370

ABSTRACT

OBJECTIVE: To analyze the association between functional mobility, anthropometric and functional characteristics of older women after 12 weeks of resistance training. METHODS: This is a quasi-experimental descriptive study with a multiple linear regression analysis. A significance level of 0.05 was adopted. Forty-seven community-dwelling older women underwent 12 weeks of supervised resistance training twice a week. The dependent variable (mobility measured by the Timed Up and Go test) and the independent variables (age, body mass index, fat-free mass of the lower limbs, waist circumference, peak knee torque at 60º/s, peak knee torque at 180º/s, functional reach test, and 30-second chair stand test) were measured before and after the intervention. RESULTS: A multivariate analysis showed that age, body mass index, waist circumference, and the 30-second stand test predicted 30% (R2 = 0.30; p = 0.001; F = 5.53) of the total variance regarding an improvement in mobility after resistance training (p < 0.0001; [95% CI 0.72­1.20]; the effect size was considered large [0.90]) when comparing women before and after the intervention. CONCLUSIONS: Age, body mass index, waist circumference, and the 30-second stand test predicted 30% of the increase in functional mobility.


OBJETIVO: Analisar a associação entre mobilidade funcional, variáveis antropométricas e funcionais de mulheres idosas após 12 semanas de treinamento resistido. METODOLOGIA: Este é um estudo descritivo quase experimental com múltipla análise de regressão linear. Foi adotado nível de significância de 0,05. Quarenta e sete idosas residentes na comunidade foram submetidas a 12 semanas de treinamento resistido supervisionado, duas vezes por semana. A variável dependente (mobilidade mensurada pelo teste Timed Up and Go) e as variáveis independentes (idade, índice de massa corporal, massa livre de gordura dos membros inferiores, circunferência da cintura, pico de torque do joelho a 60º/s, pico de torque do joelho a 180º/s, teste de alcance funcional e teste de sentar e levantar por 30 segundo na cadeira) foram medidas antes e depois da intervenção. RESULTADOS: A análise multivariada mostrou que a idade, o índice de massa corporal, a circunferência da cintura e o teste de sentar e levantar previram 30% (R2 = 0,30; p = 0,001; F = 5,53) da variância total na melhora da mobilidade após o treinamento de resistência (p < 0,0001 [95% intervalo de confiança [CI], 0,72-1,20]; o tamanho do efeito foi considerado grande [0,90]) antes e depois da intervenção. CONCLUSÕES: Idade, índice de massa corporal, circunferência da cintura e teste de sentar e levantar predizem 30% de aumento da mobilidade funcional.


Subject(s)
Humans , Female , Middle Aged , Aged , Body Mass Index , Waist Circumference , Endurance Training/methods , Functional Status , Linear Models , Treatment Outcome
13.
Rev. chil. enferm. respir ; 36(2): 109-114, jun. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1138542

ABSTRACT

INTRODUCCIÓN: Las enfermedades respiratorias crónicas (ERC) en niños han aumentado en los últimos años siendo la Rehabilitación Respiratoria uno de los tratamientos utilizados en esta población. OBJETIVO: Evaluar el impacto de un programa de entrenamiento aeróbico sobre cinta rodante en pacientes pediátricos con ERC del Hospital Josefina Martínez. METODOLOGÍA: Serie retrospectiva de casos con registro prospectivo de 9 pacientes con una edad promedio de 7,1 ± 3,9 años con ERC y entrenamiento aeróbico. Los pacientes realizaron 24 sesiones. Se analizaron los registros pre-post de los test de marcha de 6 min (TM6) y la velocidad máxima obtenida en el Test Cardiopulmonar Incremental (VTCI). RESULTADOS: Las medias de la distancia recorrida en TM6 pre y post entrenamiento fueron de 383 ± 142,4 m y 451,7 ± 142,4 m respectivamente (p < 0,0001). Las medias de las VTCI pre y post entrenamiento fueron: 4,1 ± 1,1 km/h y 5,4 ± 1,27 km/h (p = 0,001). CONCLUSIONES: La distancia recorrida en el TM6 y la capacidad máxima de trabajo mejoraron significativamente con el entrenamiento aeróbico en estos pacientes con ERC.


INTRODUCTION: Chronic respiratory diseases (CRD) in children have increased in recent years. Respiratory Rehabilitation is one of the treatments used in this population. OBJECTIVE: To evaluate the impact of a treadmill training program over pediatric patients with CRD in the Josefina Martínez Children's Hospital at Santiago de Chile. METHODS: Retrospective cases series with prospective record of 9 patients 7.1 ± 3.9 years-old with CRD and treadmill training. The patients performed 24 sessions. The Pre-post records of the 6-minute walk test (6MW) and the maximum speed obtained in the Incremental Load Test (ILT) were analyzed. RESULTS: Averages of the distance traveled pre and post-training were 383 ± 142.4 meters and 451.7 ± 142.4 meters respectively (p < 0.0001). The average maximum speed obtained in the ILT was 4.1 ± 1.1 km/h and 5.4 ± 1.27 km/h (p = 0.001). CONCLUSION: The distance walked in the 6-minute walk test and the maximum work capacity improve significantly with treadmill training in these patients with CRD.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Respiratory Tract Diseases/rehabilitation , Endurance Training/methods , Gait/physiology , Time Factors , Exercise , Chronic Disease , Retrospective Studies , Walk Test , Cardiorespiratory Fitness/physiology
14.
Cienc. act. fís. (Talca, En línea) ; 21(1): 1-17, ene. 2020. tab
Article in Spanish | LILACS | ID: biblio-1123680

ABSTRACT

El objetivo de esta revisión fue comparar la influencia del entrenamiento aeróbico y de fuerza combinados (EAFC) con el entrenamiento aeróbico (EA) sobre capacidad aeróbica, fuerza muscular y otras variables relevantes en la rehabilitación cardíaca (RC) de pacientes con enfermedad de las arterias coronaria (EAC). Realizamos una revisión de revisiones sistemáticas y meta análisis en PubMed hasta el 27 de abril de 2019. Se identificaron un total de 30 artículos y se seleccionaron finalmente 3 estudios para esta revisión. La calidad general de los estudios incluidos fue moderada (AMSTAR-2). El EAFC presentó mayores mejorías en comparación al EA sobre capacidad aeróbica, composición corporal y fuerza muscular en pacientes adultos (rango de edad media: 45-73 años) con EAC. Esta revisión agrega evidencia adicional que el EAFC presenta mejoras clínicamente significativas sobre capacidad aeróbica y fuerza muscular en comparación al EA. Son necesarios más estudios que permitan establecer conclusiones consistentes de los efectos del EAFC en comparación al EA sobre calidad de vida. Además, son necesarios más estudios que analicen diferentes protocolos del EAFC y que permitan establecer su prescripción más eficiente en la RC de esta población.


The objective of this review was to compare the influence of combined aerobic and strength training (EAFC) with aerobic training (EA) on aerobic capacity, muscle strength and other relevant variables in cardiac rehabilitation (RC) of patients with coronary artery disease (EAC). We conducted a review of systematic reviews and meta-analyzes in PubMed up to 27 April 2019. A total of 30 articles were identified and 3 studies were finally selected for this review. The overall quality of the included studies was moderate (AMSTAR-2). EAFC showed greater improvements compared to EA on aerobic capacity, body composition and muscle strength in adult patients (mean age range: 45-73 years) with EAC. This review adds additional evidence that EAFC presents clinically significant improvements in aerobic capacity and muscular strength compared to EA. More studies are needed to establish consistent conclusions about the effects of EAFC compared to EA on quality of life. In addition, more studies are needed to analyze different protocols of the EAFC and to establish their most efficient prescription in CR of this population.


Subject(s)
Humans , Middle Aged , Aged , Coronary Artery Disease/rehabilitation , Muscle Strength/physiology , Cardiorespiratory Fitness/physiology , Endurance Training/methods , Quality of Life , Body Composition , Exercise Therapy , Resistance Training , Cardiac Rehabilitation
15.
Motriz (Online) ; 26(4): e10200157, 2020. tab, graf
Article in English | LILACS | ID: biblio-1143311

ABSTRACT

Abstract Aims: Recently, high-intensity training methods have become popular, integrating the cardiovascular and neuromuscular training in a single training session, among these methods is CrossFit®. The objective of this study was to analyze the superficial thermal response to CrossFit® exercise in men and women, in order to use this knowledge to prevent overuse injuries. Methods: Nineteen volunteers involved in CrossFit® exercise for more than 6-month (12 males and 7 females) were recruited. The acquisition of the thermal images was performed in a climatized room in two moments, at rest (before exercise), and after one CrossFit® training session. The training session lasted 45min, comprising warm-up (10-min), accessory work (15-20min), and workout of the day (15-20-min). Before the first image acquisition, volunteers were acclimated for 15 min. The Wilcoxon signed-rank test was used to compare the skin temperature between pre- and post-exercise. Results: Temperatures rose significantly pre- to post-exercise in the forearm and anterior thigh regions, while it decreased in the anterior thorax and dorsal lower back regions. These results were found both, in the overall sample, and the male volunteers, but not when the female results were isolated. Conclusion: It can be concluded that superficial thermal response to one CrossFit® training session was characterized and was different for men and women. The superficial thermal responses were aligned with the physiological alterations promoted by other modalities, such as resistance training, cycling, and running.


Subject(s)
Humans , Athletic Injuries/prevention & control , Thermosensing , Exercise , Endurance Training/methods , Data Collection/instrumentation
16.
Int. j. cardiovasc. sci. (Impr.) ; 32(4): 374-383, July-Aug. 2019. tab, ilus
Article in English | LILACS | ID: biblio-1012347

ABSTRACT

Maximal oxygen uptake (VO2max) and both first (VT1) and second (VT2) thresholds have been used as reference points for exercise prescription in different populations. Objective: We aimed to test the hypothesis that exercise prescription, based on VTs determined by treadmill cardiopulmonary exercise testing (CPET), is influenced by the rate of increase in treadmill workload. Methods: Nine healthy individuals underwent two CPETs, followed by two sessions of submaximal exercise, both in randomized order. For the "speed" protocol, there was an increment of 0.1 to 0.3 km.h-1 every 15s. The "grade" incremental protocol increased 1% every 30s and 0.1 km.h-1 every 45s. This was followed by submaximal exercise sessions lasting 40min at an intensity corresponding to heart rate (HR) between the VT1 and VT2. Results: The "speed" protocol resulted in higher VT1 (p = 0.01) and VT2 (p = 0.02) when compared to the "grade" incremental protocol, but there was no effect on VO2max. The target HR for the submaximal exercise sessions was higher in the "speed" protocol compared to the "grade" incremental protocol (p < 0.01) and remained stable during the two steady-state exercise sessions. Blood lactate remained stable during the submaximal exercise sessions, with higher values observed during the "speed" protocol than those "grade" incremental protocol (p < 0.01). Conclusions: Compared to a grade-based protocol, a speed-based protocol resulted in higher VT1 and VT2, which significantly affected cardiorespiratory and metabolic responses to prescribed exercise intensity in healthy young adults


Subject(s)
Humans , Male , Female , Adult , Exercise Tolerance , Exercise Test/methods , Oxygen Consumption , Prognosis , Cardiovascular Diseases/diagnosis , Exercise , /methods , Electrocardiography/methods , Endurance Training/methods , Heart Rate
17.
Motriz (Online) ; 24(2): e1018123, 2018. tab, graf
Article in English | LILACS | ID: biblio-955143

ABSTRACT

Abstract AIMS to compare the efficacy of neurofunctional training versus resistance training in improving gait and quality of life among patients with PD METHODS This randomized controlled trial included 40 participants randomly assigned to two groups through random number table generator: resistance training (RT) (n=19) and neurofunctional training (NT) (n=21). The RT group performed resistance exercises emphasizing the lower limbs and trunk, while the NT group sessions were focused on gait, functional independence and balance training. Trained physical therapists supervised both groups. The training sessions lasted 60 minutes in each group and were performed twice a week, totalizing 24 sessions. The outcomes, gait and quality of life, were measured using video gait analysis and footprint analysis; and PDQL and PDQ-39 questionnaires, respectively RESULTS intra-group comparison revealed all gait variables (stride length, step length, number of steps, time of distance walked, gait speed and cadence) improved after the NT intervention with large effect size, while only stride length improved in the RT group with moderate effect size. The between group analyses means (Δ) shows that all the variables presented statistically significant differences in the NT group. Additionally, both groups showed significant improvements in quality of life. CONCLUSIONS The application of specific neurofunctional training, directed and enriched with sensorial resources, resulted in superior gait performance among individuals with PD when compared to those in the resistance training group; both treatments were efficacious in improving quality of life.


Subject(s)
Humans , Parkinson Disease/physiopathology , Physical Therapy Modalities/instrumentation , Neurological Rehabilitation/methods , Endurance Training/methods
18.
Motriz (Online) ; 24(2): e101815, 2018. tab, graf
Article in English | LILACS | ID: biblio-955142

ABSTRACT

Abstract AIM the aim of this study was to analyze the weekly sets volume (WSV) performed by trained men and women for each muscle group in muscle hypertrophy programs. METHODS One hundred and five resistance training practitioners of both sex (42 women, 29.8±5.7 years; 63 men, 28.5±5.7 years) consented to the analysis of their current training programs. Their training plains were analyzed by a researcher that used the following equation to determine the WSV performed for each muscle group: "number of exercises per muscle group per training session X number of sets per exercise in each training session X weekly training frequency per muscle group". The median values ​​by each muscle group were compared within and between genders. RESULTS Between group analysis demonstrated that men performed higher WSV for upper body (UB) muscles than women (47.2±14,6 vs. 18.2±7.4 sets). Conversely, women performed a higher WSV for lower body (LB) muscle groups than men (23.8±11.2 vs. 11.5±7.0 sets). The training volume for the abdominal muscles did not differ between groups. When comparing the WSV for the UB, LB and core musculature within groups, men perform higher training volumes for the UB compared to the LB and core, while women train the LB with a higher volume compared to the other musculature. CONCLUSION For some muscle groups, the WSV is higher than recommended in the literature for muscle hypertrophy. Men emphasize the UB training, while women emphasize training the LB. Moreover, the WSV performed by subjects of both genders is disproportionate between different muscle groups.


Subject(s)
Humans , Resistance Training/methods , Skeletal Muscle Enlargement , Muscles , Endurance Training/methods
19.
Motriz (Online) ; 24(2): e1018151, 2018. tab, graf
Article in English | LILACS | ID: biblio-955141

ABSTRACT

Abstract AIMS The purpose of this study was to examine the acute effects between different volumes of static stretching (SS) and proprioceptive neuromuscular facilitation (PNF) stretching (30 and 60 seconds) on the maximum number of repetitions at 40 and 80% 1RM and rating of perceived exertion (RPE). METHODS Eleven recreationally-trained women (26.45 ± 5.27 years) performed ten experimental protocols using a repeated measures crossover design: (a) 30 s of SS followed by 40% of 1RM (SS1); (b) 60 s of SS followed by 40% of 1RM (SS2); (c) 30 s of SS followed by 80% of 1RM (SS3); (d) 60 s of SS followed by 80% of 1RM (SS4); (e) 30 s of PNF followed by 40% of 1RM (PNF1); (f) 60 s of PNF followed by 40% of 1RM (PNF2); (g) 30 s of PNF followed by 80% of 1RM (PNF3); (h) 60 s of PNF followed by 80% of 1RM (PNF4); (i) 40% of 1RM with no stretching (NS1); and (j) 80% of 1RM with no stretching (NS2). In both stretching protocols, shoulder girdle muscle exercises were performed. RESULTSStretching volume did not seem to significantly decrease the number of repetitions after a bench press session (p>0.05). However, RPE was greater for PNF2 (28.5±1.0; p=0.016) when compared with PNF1 (26.9±1.9). CONCLUSION Stretching volume does not seem to decrease the maximum number of repetitions after a bench press session; however, greater stretching volume appears to increase perception of effort in women when using PNF stretching of longer duration.


Subject(s)
Humans , Female , Perception , Pliability , Athletic Performance , Endurance Training/methods
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