Gluteus maximus and semitendinosus activation during active prone hip extension exercises

Brazilian Journal of Physical Therapy

Acl Sakamoto²  Lf Teixeira-salmela¹  De Paula F Rodrigues¹  Cq Guimarães¹  Cdcm Faria¹ 

[1] ,Centro Universitário de Belo Horizonte Department of Physical Therapy Belo Horizonte MG ,Brazil

关键词: gluteus maximus;    semitendinosus;    therapeutic exercises;    electromyography;    glúteo máximo;    semitendinoso;    exercícios terapêuticos;    eletromiografia;   

DOI  :  10.1590/S1413-35552009005000045

来源: SciELO

【 摘 要 】

BACKGROUND: Gluteus maximus strengthening exercises are employed in clinical practice as options for the treatment of low back and sacroiliac disorders. However, no studies were found that investigated which were the best exercises to activate this muscle and justify its employment in physical therapy practice. OBJECTIVE: To quantify the electromyographic (EMG) activity of the gluteus maximus and semitendinosus muscles during four modalities of therapeutic exercises. METHODS: Thirty-one participants (16 men, 15 women) were selected. The EMG activities of the gluteus maximus and semitendinosus was recorded and quantified while the participants performed four modalities of therapeutic exercises, involving active prone hip extension in four positions: knee extension (KE), knee flexion (KF), lateral hip rotation and knee extension (LHRKE), and lateral hip rotation and knee flexion (LHR-KF). RESULTS: Repeated-measures ANOVAs showed that the addition of KF or LHR increased gluteus maximus activity, whereas, KE decreased the activation of this muscle. In contrast, the exercises performed with KE increased semitendinosus activity. CONCLUSIONS: Exercises performed with KF or LHR, or a combination of the two, may be effective choices for gluteus maximus strengthening, however both KF and LHR decreased semitendinosus activity. The exercises performed with KE appeared to be an acceptable choice for semitendinosus activation.

【 授权许可】

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