《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2022, Vol. 28 ›› Issue (4): 384-388.doi: 10.3969/j.issn.1006-9771.2022.04.003

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Effect of Flexi-bar training in different exercise patterns on trunk stability muscles

ZHOU Yue1,LIU Xu2,SUN Yuemei1,HU Chunying1,3,ZHU Yuetong4,LI Bo5()   

  1. 1. Department of Rehabilitation, Beijing Bo'ai Hospital, China Rehabilitation Research Center, Beijing 100068, China
    2. Department of Rehabilitation, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
    3. Capital Medical University School of Rehabilitation Medicine, Beijing 100068, China
    4. International University of Health and Welfare Graduate School, Ootawara 3240851, Japan
    5. Liaocheng Vocational and Technical College, Liaocheng, Shandong 252000, China
  • Received:2021-12-24 Revised:2022-01-29 Published:2022-04-25 Online:2022-05-05
  • Contact: LI Bo E-mail:lclibo1801@163.com

Abstract:

Objective To compare the effects of Flexi-bar training in different exercise patterns on trunk stability muscles.Methods From June, 2020 to January, 2021, 21 healthy men in Beijing Bo'ai Hospital finished Flexi-bar exercise in seven patterns in random order, namely no vibration, two hands-front vibration, dominant hand-front vibration, non dominant hand-front vibration, two hands-up vibration, two hands-down vibration and two hands-back vibration. The average voltage of electromyography of upper trapezius, middle trapezius, lower trapezius, latissimus dorsi and lumbar multifidus were recorded with surface electromyography during seven kinds of Flexi-bar exercise.Results The average voltage of lumbar multifidus was the most as two hands-front vibration (F=42.362, P<0.001); however, it was the most for upper trapezius and lower trapezius as two hands-up vibration (F > 10.935, P<0.001), it was the most for latissimus dorsi as two hands-back vibration (F=35.243, P<0.001), and it was the most for ipsilateral middle trapezius as non dominant hand-front vibration (F=40.400, P<0.001).Conclusion Flexi-bar training can effectively activate the contraction of trunk stability muscles, and it can be optimized in targeted patterns.

Key words: Flexi-bar, stabilizing muscle, surface electromyography