Electromyographic activity in the gluteus medius, gluteus maximus, biceps femoris, vastus lateralis, vastus medialis and rectus femoris during the Monopodal Squat, Forward Lunge and Lateral Step-Up exercises
Electromyographic activity in the gluteus medius, gluteus maximus, biceps femoris, vastus lateralis, vastus medialis and rectus femoris during the Monopodal Squat, Forward Lunge and Lateral Step-Up exercises
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DOI：
10.1371/journal.pone.0230841
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发表时间：
2020-04-01
期刊：
影响因子：
3.7
通讯作者：
Antequera-Vique, Jose A.
中科院分区：
文献类型：
--
作者：
Muyor, Jose M.;Martin-Fuentes, Isabel;Antequera-Vique, Jose A.
单足深蹲，前弓步和横向加强演习通常是执行与自己的体重康复的目的。然而，使用表面肌电图评估的肌肉活动从来没有分析过这三种练习。因此，本研究的目的是评估参与者进行外侧跨步、前弓步和单足蹲练习时臀中肌、臀大肌、股二头肌、股外侧肌、股内侧肌和股直肌的EMG活动幅度。总共有20名体力活动参与者（10名男性和10名女性）在每个评估练习中以60%（最多5次重复）重复5次。肌电振幅以最大自主收缩的百分比计算。除了股直肌外，单足深蹲运动在所有评估的肌肉中（d > 0.6）显示出与外侧跨步和前弓步运动相关的更高的EMG活性（p. 0.001）。这三个练习表明，在所有的肌肉中，在同心相相对于偏心相进行评估的EMG活动显着较高。在三个评价的运动，股外侧肌和股内侧肌显示最高的肌电图活动，其次是臀中肌和臀大肌。单足深蹲，前弓步和横向加强练习不仅是建议为他们的康复目的，但也应该建议为性能目标和下肢力量的改善。
The Monopodal Squat, Forward Lunge and Lateral Step-Up exercises are commonly performed with one's own body weight for rehabilitation purposes. However, muscle activity evaluated using surface electromyography has never been analyzed among these three exercises. Therefore, the objectives of the present study were to evaluate the amplitude of the EMG activity of the gluteus medius, gluteus maximus, biceps femoris, vastus lateralis, vastus medialis and rectus femoris muscles in participants performing the Lateral Step-Up, Forward Lunge and Monopodal Squat exercises. A total of 20 physically active participants (10 men and 10 women) performed 5 repetitions at 60% (5 repetition maximum) in each of the evaluated exercises. The EMG amplitude was calculated in percentage of the maximum voluntary contraction. The Monopodal Squat exercise showed a higher EMG activity (p. 0.001) in relation to the Lateral Step-Up and Forward Lunge exercises in all of the evaluated muscles (d > 0.6) except for the rectus femoris. The three exercises showed significantly higher EMG activity in all of the muscles that were evaluated in the concentric phase in relation to the eccentric one. In the three evaluated exercises, vastus lateralis and vastus medialis showed the highest EMG activity, followed by gluteus medius and gluteus maximus. The Monopodal Squat, Forward Lunge and Lateral Step-Up exercises not only are recommended for their rehabilitation purposes but also should be recommended for performance objectives and strength improvement in the lower limbs.