中国组织工程研究2017，Vol.21Issue(32)：5152-5157,6.DOI:10.3969/j.issn.2095-4344.2017.32.012
振动结合负重刺激对下肢表面肌电均方根振幅的影响:基于4种刺激下半蹲起提踵练习
Effects of four patterns of vibration combined with load on the root mean square amplitude of surface electromyogram of the lower limbs during semi-squats with the heel lifting
摘要
Abstract
BACKGROUND: The surface electromyography can evaluate the effect of exercise by recording the parameters of muscle activities, and vibration exercise is the best supplement to traditional weight training. More research focuses on the effect of simple vibration training on the surface electromyography of lower limbs, but the influence of vibration combined with weight-bearing training is poorly understood.OBJECTIVE: To study the effect of vibration combined with load on the surface electromyography of lower limbs at the micro level of muscle working principle.METHODS: Eight healthy college students were recruited, and subjected to four different stimulations: vibration (45 Hz) combined with load (45% one repetition maximum (IRM)); vibration (45 Hz) combined with load (60% 1RM); vibration (50 Hz) combined with load (45% 1RM); vibration (50 Hz) combined with load (60% 1RM), followed by semi-squat exercise with the heel lifting, 10 times/minute, for 3 courses with more than 2 hours in between.RESULTS AND CONCLUSION: Different vibrations combined with loads made significant difference on the root mean square amplitude of the surface electromyography (P < 0.01), and there was a significantly increased root mean square amplitude in the vibration (50 Hz) combined with load (45% 1RM), especially at the medial gastrocnemius. The four kinds of stimulations made significant different effects on the surface electromyography of rectus femoris, tibialis anterior, and medial gastrocnemius, except semitendinosus (P ≤ 0.05). Moreover, the effect showed significant difference among different stimulations except vibration (50 Hz) combined with load (45% 1RM) (P ≤ 0.05). Compared with the other three stimulations, vibration (50 Hz) combined with load (45% 1RM) exerted better effect on the muscular activation. To conclude, different vibrations combined with loads exert different effects on the motor unit of same neuromuscular activity, and a suitable stimulation may produce better effect. Besides, the same stimulus for the motor unit of different neuromuscular activities produces different effects, which may match to the muscle nature.关键词
组织构建/组织工程/振动刺激/负重刺激/振动结合负重刺激/运动单位/激活/半蹲起提踵练习/表面肌电/均方根振幅分类
医药卫生引用本文复制引用
罗莉斯,彭莉,汪振环,裴希俊..振动结合负重刺激对下肢表面肌电均方根振幅的影响:基于4种刺激下半蹲起提踵练习[J].中国组织工程研究,2017,21(32):5152-5157,6.基金项目
中央高校基本科研项目(SWU1709437) （SWU1709437）
重庆市研究生科研创新项目(CYS14076) （CYS14076）
the Fundamental Research Funds for the Central Universities,No. SWU1709437 （）
the Research Innovation Project of Postgraduates in Chongqing,No. CYS14076 （）
