Isometric exercises have high responsiveness to lower limbs

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Márcio Rabelo Mota
Matheus Barros
Bruno Pinheiro de Carvalho
Rafael Nascimento Souza
Felipe Alves Machado
Alessandro Oliveira
Renata Aparecida Elias Dantas
Sacha Clael

Abstract

Introduction: For post-surgical rehabilitation of the anterior cruciate ligament, the medialis and the lateralis vastus need to be worked on for good recovery. There is the discussion about the isometric and isotonic exercises to be used in the rehabilitation phase, and their results diverge in the literature. Objective: This study aims to compare the activation of the medialis and the lateralis vastus in isometric and isotonic exercises. Methods: Eleven subjects (seven men and four women) physically active and experienced in resistance training participated in the study. Anamnesis, anthropometric assessment, 10 Repetition maximum (RM) load test, maximum voluntary isometric contraction test and squat test were performed. Results: For the vastus lateralis of the right leg, the electromyographic activity was significantly higher in the maximal isometric voluntary contraction compared to the dynamic squatting (p<0.05). The same was observed for the left leg (p<0.05). Conclusion: Recruitment of the medial and the lateral vastus in isometric exercises is higher in relation to isotonic exercises.

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Mota, M. R., Barros, M., Carvalho, B. P. de, Souza, R. N., Machado, F. A., Oliveira, A., Dantas, R. A. E., & Clael, S. (2020). Isometric exercises have high responsiveness to lower limbs. ABCS Health Sciences, 45. https://doi.org/10.7322/abcshs.45.2020.1250
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Original Articles

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