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1.
Res. Biomed. Eng. (Online) ; 34(1): 9-18, Jan.-Mar. 2018. tab, graf
Article in English | LILACS | ID: biblio-896205

ABSTRACT

AbstractIntroduction: Excessive load on the backpacks can lead to musculoskeletal injuries and gait alterations. The objective of this study was to analyze the electromyographic (EMG) activity in association to the kinematic during the stance and balance phases of gait performed with and without the use of the backpack. Methods Twelve volunteers have executed a gait cycle in 3 tasks: without the school backpack (SM), with a backpack with load equivalent to 10% (M10) and 20% (M20) of the body weight (BW). It was evaluated the ankle, knee and hip angular excursion (AE), linear displacement (LD) of the toe and ankle, knee, hip, shoulder, head and EMG activity of the tibialis anterior (TA), vastus medialis (VM), rectus abdominis (RA), gastrocnemius lateral (GL), biceps femoris (BF) and spinal erector (EE) muscles. Results In the LD in the stance phase there was an AP increase for the toe and ankle, hip and head (p<0.043). In the balance phase for VT (vertical) direction, the shoulder presented a smaller displacement as well as the toe, ankle, knee, hip, shoulder and head in the ML direction. In the AP direction, the toe displacement was smaller as well as the ankle (p < 0.038). The AE in both phases was smaller for the hip (p <0.006). In the balance phase the IEMG was higher for the RA (p = 0.034). Conclusion These results suggest that the transport of school backpacks with loads of more than 10%BW causes changes in the kinematic and in the muscular recruitment pattern.

2.
Rev. bras. reumatol ; 57(1): 37-44, Jan.-Feb. 2017. tab, graf
Article in English | LILACS | ID: biblio-844204

ABSTRACT

ABSTRACT Background: Secondary hyperalgesia in individuals with less severe levels of knee osteoarthritis remains unclear. The objective of this study was to measure the pressure pain threshold of individuals with mild or moderate knee osteoarthritis and compare with no osteoarthritis. Methods: Ten healthy controls and 30 individuals with mild or moderate knee osteoarthritis divided into two groups (unilateral and bilateral involvement) were included. Dermatomes in lumbar levels (L1, L2, L3, L4 and L5) and sacral level (S1 and S2), myotomes (vastus medialis, vastus lateralis, rectus femoris, adductor longus, tibialis anterior, peroneus longus, iliacus, quadratus lumborum, and popliteus muscles), and sclerotomes in lumbar levels (L1-L2, L2-L3, L3-L4, L4-L5 supraspinous ligaments), over the L5-S1 and S1-S2 sacral areas, pes anserinus bursae, and at the patellar tendon pressure pain threshold were assessed and compared between individuals with and without knee osteoarthritis. Results: Knee osteoarthritis groups (unilateral and bilateral) reported lower pressure pain threshold compared to the control group in most areas (dermatomes, myotomes, and sclerotomes). There were no between group differences in the supra-spinous ligaments and over the L5-S1 and S1-S2 sacral areas of the sclerotomes. No difference was seen between knee osteoarthritis. Conclusion: These findings suggest that individuals with mild to moderate knee osteoarthritis had primary and secondary hyperalgesia, independent of unilateral or bilateral involvement. These results suggest that the pain have to be an assertive focus in the clinical practice, independent of the level of severity or involvement of knee osteoarthritis.


RESUMO Introdução: A ocorrência de hiperalgesia secundária em indivíduos com níveis menos graves de osteoartrite de joelho ainda é incerta. O objetivo deste estudo foi medir o limiar de dor à pressão (LDP) de indivíduos com osteoartrite de joelho (OAJ) leve ou moderada e comparar com indivíduos sem osteoartrite. Métodos: Foram incluídos 10 controles saudáveis e 30 indivíduos com OAJ leve ou moderada, divididos em dois grupos (envolvimento unilateral e bilateral). Foi avaliado e comparado o LDP em dermátomos (L1, L2, L3, L4, L5, S1 e S2), miótomos (músculos vasto medial, vasto lateral, reto femoral, adutor longo, tibial anterior, fibular longo, ilíaco, quadrado lombar e poplíteo) e esclerótomos (ligamentos supraespinais L1-L2, L2-L3, L3-L4, L4-L5), sobre as áreas sacrais L5-S1 e S1-S2, bolsa anserina e tendão patelar entre os indivíduos com e sem OAJ. Resultados: Os grupos OAJ (unilateral e bilateral) relataram menor LDP em comparação com o grupo controle na maior parte das áreas (dermátomos, miótomos e esclerótomos). Não houve diferenças entre os grupos nos ligamentos supraespinais e ao longo das áreas sacrais L5-S1 e S1-S2 dos esclerótomos. Não foi observada qualquer diferença entre os indivíduos com OAJ. Conclusão: Esses achados sugerem que os indivíduos com OAJ leve a moderada tinham hiperalgesia primária e secundária, independentemente do acometimento unilateral ou bilateral. Esses resultados sugerem que a dor precisa ser um foco assertivo na prática clínica, independentemente do grau de gravidade ou envolvimento da OAJ.


Subject(s)
Humans , Male , Female , Aged , Pressure/adverse effects , Pain Threshold/physiology , Osteoarthritis, Knee/complications , Hyperalgesia/etiology , Knee/physiopathology , Health Surveys , Osteoarthritis, Knee/physiopathology , Disability Evaluation , Trigger Points , Hyperalgesia/physiopathology , Knee/innervation , Middle Aged
3.
Fisioter. mov ; 28(2): 297-306, Apr-Jun/2015. tab, graf
Article in English | LILACS | ID: lil-751926

ABSTRACT

Introduction Work-related musculoskeletal disorders (WMSDs) represent a significant object of study for the field of occupational health, as they can lead to absenteeism, compensation costs and different levels of functional disability. Nonetheless, there are few studies assessing WMSDs in public higher education institutions. Objective The present study aimed to investigate, describe and correlate musculoskeletal symptoms and work ability of staff members of the Federal University of Alfenas (Unifal-MG), in the state of Minas Gerais, Brazil. Materials and methods A descriptive and correlational study was conducted with 213 professors, 188 administrative technicians and 124 outsourced staff members using two self-administered questionnaires: the Work Ability Index (WAI) and the Nordic Musculoskeletal Questionnaire (NMQ). Results Most of the teaching staff presented good work ability 47.9% (n = 102). Among administrative technicians and outsourced staff, on the other hand, excellent work ability predominated, with 43.6% (n = 82 technicians) and 51.61% (n = 68 outsourced). The most affected region among professors and administrative staff was the neck/cervical area 36.15% (n = 77 professors); and 28.19% (n = 53 technicians). Among outsourced staff, the lower back was reported as the main source of pain, with 23.28% (n = 29). Conclusions The presence of pain interfered in the work ability of workers regardless of the affected region. Having another occupation outside the institution did not influence pain of self-assessed staff members. The work ability of Unifal-MG staff was classified as good or excellent; thus, we recommend preventive work for this population, directed at the physical and mental aspects of work activities in order to maintain or improve such rates. .


Introdução Os distúrbios osteomusculares relacionados ao trabalho (Dort) representam preocupação para a saúde ocupacional, uma vez que geram absenteísmo, custos com indenizações, além de diferentes graus de incapacidade funcional. Mesmo assim, são escassos os estudos que os tenham avaliado em instituições públicas de ensino superior. Objetivo Este trabalho buscou investigar, descrever e correlacionar os sintomas osteomusculares e a capacidade para o trabalho dos servidores da Universidade Federal de Alfenas (Unifal-MG), no estado de Minas Gerais. Materiais e métodos Estudo descritivo-correlacional, que caracterizou 213 professores, 188 técnicos administrativos e 124 funcionários terceirizados, por meio de dois questionários autoaplicáveis: o Índice de Capacidade para o Trabalho (ICT) e o Questionário Nórdico de Sintomas Osteomusculares (QNSO). Resultados A maioria dos professores apresentou boa capacidade para o trabalho 47,9% (n = 102). Já entre os técnicos administrativos e funcionários terceirizados, predominou ótima capacidade com 43,6% (n = 82 técnicos) e 51,61% (n = 68 terceirizados). As regiões mais acometidas por dor entre os professores e os técnicos administrativos foram o pescoço/região cervical 36,15% (n = 77 docentes); e 28,19% (n = 53 técnicos). Já a região lombar foi a que se destacou entre os terceirizados como a principal fonte de dor, 23,28% (n = 29). Conclusões A presença de dor interfere na capacidade de trabalho do indivíduo, independente da região acometida. A ocupação externa não influenciou o estado doloroso dos servidores autoavaliados. A capacidade dos colaboradores da Unifal-MG foi classificada como boa ou ótima, por isso sugere-se um trabalho preventivo, com abordagem nos aspectos físicos e mentais da atividade laboral, visando a manutenção ou melhoria desse índice. .

4.
Rev. bras. eng. biomed ; 30(3): 274-280, Sept. 2014. ilus, graf, tab
Article in English | LILACS | ID: lil-723265

ABSTRACT

INTRODUCTION: Cyclograms are gait analysis tools that characterize the geometric aspect of the pattern of locomotion. Cyclograms are angle-angle diagrams that are very useful for representing cyclic patterns such as walking. This study is based on the hypothesis that parameters extracted from hip-knee cyclograms of individuals walking on a treadmill with 0° and 5° slopes can be used to determine the age group and sex of the volunteers. METHODS: In total, 40 physically active healthy adult volunteers, 20 young people (10 of each gender) and 20 elderly (10 of each gender), were divided into 4 groups, and the average value of area (A), perimeter (P) and the ratio P/√A of cyclogram were calculated, as well as the speed and cadence. RESULTS: The young male (YM) speeds were higher than the elderly male (EM) speeds (p=0.00), and the young female (YF) speeds were higher than the elderly female (EF) speeds (p=0.00). No difference in speed was found between YM and YF (p=0.59) or between EM and EF (p=0.95). The parameters extracted directly from the cyclogram allowed us to distinguish the studied groups according to age group (p<0.05), especially with the treadmill inclined at 5°, but it was not enough to determine gender (p>0.51). CONCLUSION: The hypothesis was partially confirmed because parameters extracted from the hip-knee cyclograms could differentiate volunteers by age group but not gender.

5.
J. vasc. bras ; 12(1): 5-9, jan.-mar. 2013. tab
Article in Portuguese | LILACS | ID: lil-670382

ABSTRACT

CONTEXTO: A insuficiência venosa crônica tem um impacto socioeconômico considerável nos países ocidentais devido à alta prevalência, custo das investigações e tratamento e à perda de dias trabalhados. O questionário de qualidade de vida Short Form Health Survey (SF-36), bem como a análise da ativação muscular e mobilidade da articulação tibiotársica, é um instrumento utilizado para a sua mensuração. OBJETIVO: Avaliar as limitações osteomusculares e as alterações na qualidade de vida em portadores de úlcera venosa em membros inferiores. MÉTODOS: Foram estudados dez pacientes com úlceras classificadas com Classificação de Doença Venosa Crônica (CEAP: Clinica, Eliologia, Anatomia e Fisiopatologia) 6, que responderam ao questionário SF36 e à escala analógica de dor e realizaram a goniometria, força muscular e eletromiografia. RESULTADOS: A idade média do grupo estudado foi 67,4 (±11,7), sendo 70% dos casos do sexo feminino. Não houve correlação significativa entre dor amplitude do movimento (ADM), força muscular, eletromiografia (EMG) e o tamanho da lesão. Entretanto, houve correlação entre o perfil psicológico do SF-36 e o domínio de atividades motoras, bem como do perfil psicológico com as atividades sociais e percepção de si mesmo. Também houve diferença significativa na avaliação eletromiográfica dos músculos estudados. CONCLUSÃO: A presença de úlcera venosa em membros inferiores pode gerar limitações e alterações na qualidade de vida destes indivíduos. O aspecto psicossocial demonstrou-se preponderante sobre o aspecto motor, aumentando as restrições nas atividades de vida diária.


BACKGROUND: : The chronic venous insufficiency has a considerable socioeconomic impact in western countries because of high prevalence, treatment and research cost, and loss of days worked. The health survey questionnaire Short Form Health Survey (SF36), as well as the analysis of muscle activation and mobility of tibiotarsus' articulation, is an instrument used to its valuation. OBJECTIVE: To evaluate the osteomuscular limitations and changes in life quality in bearers of venous ulcers in lower members. METHODS: Ten patients with ulcers classified as CEAP (Clinic, Etiologic, Anatomic and Fisiopatologic) 6 were studied. They answered the SF-36 questionnaire and visual analogue pain and performed goniometry, muscular strength and electromyography. RESULTS: The average age of the group studied was 67.4 (±11.7), being 70% of the cases female. There wasn't correlation statistically significant between pain, range of motion (ROM) muscular strength, electromyography (EMG) and the injury size. However, there was found correlation between the psychological profile of SF36 and the domain of motor activities, as well the psychological profile with social activities and the perception of itself. In studied muscles electromyographyc evaluation, was found significance too. CONCLUSION: The presence of venous ulcers in lower members can generate limitations and changes in the life quality of these people. The psychosocial aspect showed up preponderant over the motor aspect, increasing the restrictions in day life activities.


Subject(s)
Humans , Female , Aged , Venous Insufficiency/diagnosis , Quality of Life/psychology , Varicose Ulcer/diagnosis , Chronic Disease/prevention & control , Lower Extremity/pathology , Physical Therapy Modalities/trends , Surveys and Questionnaires/classification
6.
Rev. bras. med. esporte ; 18(6): 400-403, nov.-dez. 2012. graf
Article in Portuguese | LILACS | ID: lil-666204

ABSTRACT

OBJETIVO: Muitos instrumentos têm sido propostos para avaliar o joelho, tornando muitas vezes difícil a sua escolha. Entre esses instrumentos destacam-se as escalas Knee Injury and Osteoarthritis Outcome Score (KOS) e International Knee Documentation Committee (IKDC), mas ainda não é claro qual delas seria melhor para avaliar o joelho de portadores da síndrome da dor femoropatelar (SDFP). O objetivo deste estudo foi comparar as escalas de avaliação KOS e IKDC para verificar qual delas seria mais apropriada na identificação de acometimento nos portadores da SDFP. MÉTODOS: O estudo incluiu 31 portadores da SDFP, com idade entre 18 e 39 anos (24,29 ± 4,09), sendo 27 sujeitos do sexo feminino e quatro, do masculino. Todos os sujeitos foram submetidos às escalas KOS e IKDC em duas ocasiões. A segunda aplicação serviu como prova de confiabilidade (PCKOS e PCIKDEC). A análise de correlação estatística entre as duas escalas foi realizada com os testes de Spearman e Wilcoxon, considerando-se significativo p < 0,05. RESULTADOS: O teste de correlação de Spearman revelou forte correlação entre KOS e PCKOS (r = 0,99; p < 0,001) e IKDC e PCIKDC (r = 0,96; p < 0,001). Houve uma moderada correlação entre KOS e IKDC (r = 0,46; p < 0,01) e PCKOS e PCIKDC (r = 0,55; p < 0,002). O teste de Wilcoxon revelou diferença entre KOS e IKDC (p < 0,001) e entre PCKOS e PCIKDC (p < 0,001). Houve igualdade entre KOS e PCKOS (p > 0,10) e diferença entre IKDC e PCIKDC (p < 0,02). CONCLUSÃO: As escalas KOS e IKDC apresentaram-se confiáveis durante o processo de aplicação nos portadores da SDFP, recebendo a KOS a prova de maior confiabilidade quando comparada ao IKDC.


INTRODUCTION AND OBJECTIVE: Many instruments have been proposed for the knee assessment, making its choice often difficult. Among these instruments, we can mention the Knee Injury and Osteoarthritis Outcome Score (KOS) and the International Knee Documentation Committee (IKDC) scales; however, it is unclear which of them would be better to evaluate the knee of subjects with patellofemoral pain syndrome (PFPS). The objective of this study was to compare the KOS and IKDC scales evaluation to verify which of them would be more appropriate to identify impairment in patients with PFPS. METHODS: The study included 31 PFPS subjects, aged between 18 and 39 years (24.29 ± 4.09); 27 subjects were female and 4 were male. All subjects were submitted to KOS and IKDC scales on the two occasions. The second application served as reliability evidence (PCKOS and PCIKDC).The analysis of statistical correlation between the scales was done with the Spearman and Wilcoxon tests, considering significant p < 0.05. RESULTS: The Spearman correlation test presented strong correlation between KOS and PCKOS (r = 0.99, p < 0.001) and IKDC and PCIKDC (r = 0.96, p < 0.001). There was a weak correlation between KOS and IKDC (r = 0.46, p < 0.01) and PCKOS and PCIKDC (r = 0.55, p < 0.002). The Wilcoxon test revealed differences between KOS and IKDC (p < 0.001) and between PCKOS and PCIKDC (p < 0.001). There was equality between KOS and PCKOS (p > 0.10) and difference between IKDC and PCIKDC (p < 0.02). CONCLUSION: The KOS and IKDC scales were reliable during the application in patients with PFPS, where the KOS received greater reliability when compared to the IKDC.

7.
J. appl. oral sci ; 20(1): 57-63, Jan.-Feb. 2012. graf, tab
Article in English | LILACS | ID: lil-618154

ABSTRACT

OBJECTIVE: This study assessed the muscular activity during root canal preparation through kinematics, kinetics, and electromyography (EMG). MATERIAL AND METHODS: The operators prepared one canal with RaCe rotary instruments and another with Flexo-files. The kinematics of the major joints was reconstructed using an optoelectronic system and electromyographic responses of the flexor carpi radialis, extensor carpi radialis, brachioradialis, biceps brachii, triceps brachii, middle deltoid, and upper trapezius were recorded. The joint torques of the shoulder, elbow and wrist were calculated using inverse dynamics. In the kinematic analysis, angular movements of the wrist and elbow were classified as low risk factors for work-related musculoskeletal disorders. With respect to the shoulder, the classification was medium-risk. RESULTS: There was no significant difference revealed by the kinetic reports. The EMG results showed that for the middle deltoid and upper trapezius the rotary instrumentation elicited higher values. The flexor carpi radialis and extensor carpi radialis, as well as the brachioradialis showed a higher value with the manual method. CONCLUSION: The muscular recruitment for accomplishment of articular movements for root canal preparation with either the rotary or manual techniques is distinct. Nevertheless, the rotary instrument presented less difficulty in the generation of the joint torque in each articulation, thus, presenting a greater uniformity of joint torques.


Subject(s)
Adult , Female , Humans , Male , Endodontics , Muscle, Skeletal/physiology , Root Canal Preparation/instrumentation , Biomechanical Phenomena , Electromyography , Joints/physiology , Kinetics , Musculoskeletal Diseases/physiopathology , Occupational Diseases/physiopathology , Reference Values , Risk Factors , Root Canal Preparation/methods , Time Factors , Torque
8.
Rev. Ter. Man ; 8(38): 262-268, jul.-ago.2010. ilus
Article in English | LILACS | ID: lil-606213

ABSTRACT

Introdução: Nós mostramos que indivíduos neurologicamente normais usam um jogo simples de regras para modular os torques articulares e as atividades musculares durante o desempenho de movimentos complexos que usando informação visual e proprioceptiva. Objetivo: Aqui nós testamos a hipótese que este jogo simples de regras cinéticase EMG é preservado quando os sujeitos tiveram que confiar na informação proprioceptiva da articulação, sem acesso direto para a orientação de espaço da mão (informação visual) para executar movimentos. Métodos: Movimentos do membro superior com reversão sobre três distâncias do alvo foram reconstruídos. Torques do ombro e cotovelo foram calculados usando dinâmica inversa, e também foram registradas atividades EMG dos principais músculos do braço. Resultados: Os sujeitos tiveram que emparelhar específica excursão angular do cotovelo para alcançar o alvo, e a informação sobre o deslocamento de ponta do dedo e posição do alvo não foi provida. A velocidade linear da ponta do dedo, torques articulares e atividade EMG muscular aumentaram com distância do alvo, e os torques articulares e atividades EMG muscular foram acopladas. Conclusão: O uso de informação de proprioceptiva para planejar o movimento não muda as estratégias cinéticas e EMG usadas pelo sistema nervoso central para executar movimentos de braço horizontal-planar com reversão.


Introduction: We have shown that neurologically normal individuais use one simple set of rules to modulate the joint torques and muscle activities during the performance of complex movements using visual and proprioceptive information. Objective: Here, we tested the hypothesis that this sim pie set of EMG and kinetic rules is preserved when the subjects had to rely on proprioceptive information of the joint, without direct access to the spatial orientation of the hand (visual information) to perform movements. Method: Upper arm movements with reversal performed over three target distances were reconstructed. Shoulder and elbow torques were calculated using inverse-dynamics, and EMG activities of the major arm muscles were also recorded. Results: Subjects had to match specific elbow angular excursion to reach the target, and the information about the fingertip displacement and target position was not provided. The fingertip linear speed, joint torques and EMG muscle activities increased with target distance, and the joint torques and EMG muscle activities were well coupled. Conclusion: The use of proprioceptive information to plan the movement does not change the EMG and kinetic strategies used by the central nervous system to perform horizontal planararm movements with reversal.


Subject(s)
Humans , Male , Female , Adult , Biomechanical Phenomena , Muscles , Proprioception , Torque
9.
Fisioter. Bras ; 8(5): 365-372, set.-out. 2007.
Article in Portuguese | LILACS | ID: lil-491296

ABSTRACT

A proposta deste artigo foi sintetizar o conhecimento científico relevante a respeito da síndrome da dor fêmoro-patelar (SDFP) e discutir as implicações para a fisioterapia. A análise da literatura corrente revela que a causa da SDFP é multifatorial, tendo várias particularidades anatômicas, mecânicas e neuromusculares, as quais podem atuar como fatores geradores dessa síndrome. Essas observações exigem que o fisioterapeuta busque uma análise criteriosa e individual dos portadores de SDFP, a fim de propor estratégias adequadas a cada caso.


The proposal of this article was to synthesize the scientific knowledge relevant to patellofemoral pain syndrome (PFPS) and to discuss the implications for the physical therapy. The analysis of the current literature reveals that the etiology of PFPS is multifatorial tends several anatomical, mechanics and neuromuscular particularities, which can act as factors generating this syndrome. Those observations demand that the physiotherapist looks for a discerning and individual analysis of the people with PFPS, in order to propose appropriate strategies to each case.


Subject(s)
Knee Injuries , Patella , Physical Therapy Modalities
10.
Rev. bras. med. esporte ; 13(1): 43-46, jan.-fev. 2007. ilus, graf, tab
Article in Portuguese | LILACS | ID: lil-461051

ABSTRACT

O objetivo principal deste estudo foi quantificar a atividade muscular durante a realização de agachamento unipodal com variações na técnica. Oito voluntários saudáveis realizaram agachamentos associados a cinco tipos de posição do pé: posição neutra, sobre cunha com 10° de declive, sobre cunha com 10° de aclive, sobre cunha com 10° de inclinação medial e sobre cunha com 10° de inclinação lateral. Foram avaliados os dados eletromiográficos dos músculos vasto medial oblíquo, vasto lateral, reto femoral, bíceps femoral, gastrocnêmio lateral e tibial anterior, utilizando a ANOVA fator único. O valor eletromiográfico integrado de todos os músculos não foi estatisticamente diferente nos cinco tipos de posição do pé. Os resultados deste estudo sugerem que diferentes tipos de posicionamento do pé durante o agachamento unipodal não provocam alterações no padrão de recrutamento muscular.


The specific aim of this study was to quantify muscle activity while performing squat with technique variations. Eight healthy volunteers performed squats under 5 types of foot positions: neutral position, under a 10° descending wedge, under a 10° ascending wedge, under a 10° medial wedge and under a 10° lateral wedge. It was evaluated electromyographic data of vastus medialis oblique, vastus lateralis, rectus femoris, biceps femoris, lateral gastrocnemius and tibialis anterior muscles, using One-Way ANOVA. The EMG integrated values was not significantly different across the 5 foot positions. The results of this study suggest that different foot positions during one-legged squat do not cause changes in muscle recruitment.


El objetivo principal de este estudio ha sido cuantificar la actividad muscular durante la realización de agachamiento unipodal con variaciones en la técnica. Ocho voluntarios saludables realizaron agachamientos asociados a cinco tipos de posición del pie: posición neutra, sobre cuña con 10° de declive, sobre cuña con 10° de elevación, sobre cuña con 10° de inclinación media y sobre cuña con 10° de inclinación lateral. Fueron evaluados los datos electromiográficos de los músculos vasto medial oblicuo, vasto lateral, recto femoral, bíceps femoral, gastrocnemio lateral y tibial anterior, utilizando ANOVA factor único. El valor electromiográfico integrado de todos los músculos no fue estadísticamente diferente en los cinco tipos de posición del pie. Los resultados de este estudio sugieren que diferentes tipos de posicionamiento del pie durante el proceso de agachamiento unipodal no provocan alteraciones en el padrón de reclutamiento muscular.


Subject(s)
Humans , Male , Female , Young Adult , Electromyography , Exercise , Knee , Muscles/physiology , Rehabilitation
11.
Fisioter. Bras ; 6(6): 462-466, nov.-dez. 2005.
Article in Portuguese | LILACS | ID: lil-491184

ABSTRACT

Dentre a grande diversidade de condutas fisioterapêuticas sugeridas para o tratamento da Síndrome da Dor Fêmoropatelar (SDFP), os exercícios em cadeia cinética fechada (CCF) têm sido muito utilizados, e acredita-se que essa modalidade de exercício é capaz de melhorar a estabilidade funcional da articulação do joelho. O objetivo deste estudo foi avaliar se o treinamento em CCF pode favorecer mudanças nos padrões de atividade eletromiográfica (EMG) da porção medial do músculo vasto medial (VM) e vasto lateral (VL) em um sujeito portador da SDFP, e sua implicação nas atividades funcionais. Foi recrutado um sujeito de 24 anos de idade, sexo feminino, com diagnóstico da SDFP e sem história de dor incapacitante ou cirurgia no joelho. Foram realizadas avaliação fisioterapêutica, análise cinemática e eletromiográfica dos músculos que envolvem a articulação do joelho durante a atividade de agachamento com os pés e a tíbia em posição neutra, antes e após o período de treinamento de 8 semanas realizado no leg press. Houve mudança no padrão eletromiográfico dos músculos extensores do joelho após o treinamento e melhora clínica do sujeito, tanto nas atividades funcionais como naquelas relacionadas à dor. O programa de exercícios em CCF, nas condições experimentais utilizadas, foi eficiente no tratamento da síndrome da dor fêmoropatelar e contribuiu para a melhora clínica do sujeito.


Objetive: Among the great diversity of physical therapeutic approaches suggested to the treatment of patellofemoral pain syndrome (PFPS), the closed kinect chain (CKC) exercises have been used very often, and this kind of exercise is able to improve the functional stability of the knee joint. The aim of this study was to assess the effect of closed kinect chain exercise in electromyography activity of quadriceps in a subject with PFPS. Method: A 24 years old female subject, with a previous diagnosis of PFPS without history of disabling pain and knee surgery took part in study. It was done a physical therapy assessment and also electromyographic and kinematic analysis of knee muscles during squatting with foot in neutral position, before and after 8 week’s training in leg press. Results: There was a pattern electromyographic change of the extensors muscles of the knee after training and clinical improvement of the subject in his functional activities as well as in the pain. Conclusión: The result of the exercise program in closed kinect chain, in experimental conditions, was efficient in the treatment of patellofemoral pain syndrome and it also contributed to the subject’s pain reduction.


Subject(s)
Electromyography , Exercise , Exercise Therapy
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