《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2017, Vol. 23 ›› Issue (1): 63-67.doi: 10.3969/j.issn.1006-9771.2017.01.015

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Gait and Surface Electromyogram Characteristics in Underwater Treadmill Training

WU Qiong1, ZHANG Tong3, CONG Fang3, PAN Yu1, WU Rui-bin4, ZHAO Tie-jun5   

  1. 1. Department of Physical Medicine and Rehabilitation, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing 102218, China;
    2. a. Department of Neurology; b. Department of Modality Therapy, Beijing Bo'ai Hospital, China Rehabilitation Research Centre, Beijing 100068, China;
    3. Capital Medical University School of Rehabilitation Medicine, Beijing 100068, China;
    4. No.1 Institute of China Aerospace Science and Technology Corporation, Beijing 100076, China;
    5. Qingdao Hailan Rehabilitation Equipment Co. Ltd., Qingdao, Shandong 266100, China
  • Received:2016-08-30 Published:2017-01-20 Online:2017-02-17
  • Contact: ZHANG Tong. E-mail: ZT61611@sohu.com

Abstract: Objective To explore the characteristics of gait and surface electromyography (sEMG) of underwater treadmill training (UWTT). Methods From January to September, 2015, gait and sEMG parameters of ten healthy adults were synchronously collected using three-dimensional gait analysis system and sEMG systems on land and UWTT. Results When walking in self comfortable speed, compared with walk on land, there was significant increase in gait cycle (t=-11.411, P<0.001) and percentage of the swing phase (t=-5.252, P<0.05), significant reduction in walking speed (Z=-2.803, P<0.01) and step frequency (t=7.421, P<0.001). There was no significant difference in step strength (Z=-0.357, P>0.05). The integral electromyography of biceps femoris, gastrocnemius, tibialis anterior muscle were significant less than iEMG on land (t>3.984, P<0.01), but no significant difference of rectus femoris (t=0.054, P>0.05). Conclusion There are significant differences in gait and muscle contraction intensity between land walking and UWTT. The dynamic physiology and neural control of UWTT need further study.

Key words: underwater treadmill training, gait, surface electromyography

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