《中国康复理论与实践》

《中国康复理论与实践》 ›› 2009, Vol. 15 ›› Issue (11): 1068-1070.

• 临床研究 • 上一篇    下一篇

太极拳特定动作下股内侧肌和股外侧肌表面肌电特征的研究

欧阳静明1;王楚怀2;3;王于领3;张洲3;缪萍4;王玉娟3;余秋华3   

  1. 1.暨南大学附属第一医院康复科， 广东广州市 510630; 2. 中山大学第一附属医院黄埔院区康复科，广东广州市 510700;3.中山大学第一附属医院康复科，广东广州市 510085;4.广州医学院附属第二医院康复科，广东广州市 510260
  • 收稿日期:2009-06-16 修回日期:2009-10-16 出版日期:2009-11-01 发布日期:2009-11-01
  • 通讯作者: 王楚怀

Surface Electromyography Finding of Vastus Lateralis and Vastus Medialis during the Taijiquan Exercise

OUYANG Jing-ming，WANG Chu-huai,WANG Yu-ling,et al   

  1. Department of Rehabilitation Medicine, First Affiliated Hospital of Jinan University; Guangzhou 510630, Guangdong, China
  • Received:2009-06-16 Revised:2009-10-16 Published:2009-11-01 Online:2009-11-01

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被引次数

38

摘要： 目的 研究太极拳特定动作中股内侧肌(VMO)和股外侧肌(VL)的肌纤维募集情况。方法 收集15名健康志愿者在维持5个太极拳定势（白鹤亮翅、金鸡独立、搂膝拗步、十字手、仆步）时VL、VMO的表面肌电信号，比较平均肌电值(AEMG)、平均功率频率(MPF)、中位频率(MF)、零点通过率（ZCR）。结果 维持白鹤亮翅、金鸡独立时，其支撑脚VMO、VL的所有指标均无显著性差异；维持搂膝拗步、十字手、仆步时，其支撑脚VL的AEMG、MFC、ZCR、MF均小于VMO(P<0.05)；与股四头肌的最大随意收缩负荷相比，所测试的动作下，肌肉负荷属于中小负荷，并且能募集到更多的慢肌纤维。结论 进行太极拳运动时，肌肉负荷较小，并且能募集到更多的慢肌纤维；某些太极拳动作下，VMO可以较多地募集到肌纤维。

关键词: 太极拳, 表面肌电图, 股内侧肌(VMO), 股外侧肌(VL)

Abstract: Objective To investigate the characteristic of vastus lateralis (VL) and vastus medialis (VMO) during the Taijiquan exercise with surface electromyography (EMG). Methods 15 healthy adults were collected their median frequency (MF), mean power frequency (MPF), zero crossing rate (ZCR), averaged EMG (AEMG) of bilateral VL and VMO when they maintained 5 Taijiquan typical posture. Results The differences were not significant in all those indexes between VL and VMO during the postures of Baihe Liangchi and Jinji Duli, and were significant during the postures of Louxi Aobu, Shizi Tui, Pubu (P<0.05), the VL's indexes were less. Compared with the maximum voluntary contraction, Taijiquan was the lower loaded, and more slow muscle fibers could be recruited. Conclusion Taijiquan is a lower loaded exercise, and more slow muscle fibers can be recruited, especially in the VMO in some actions.

Key words: Taijiquan, surface electromyography, vastus medialis (VMO), vastus lateralis (VL)