Chinese Journal of Rehabilitation Theory and Practice ›› 2024, Vol. 30 ›› Issue (9): 1092-1098.doi: 10.3969/j.issn.1006-9771.2024.09.013

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Effect of muscle energy technique on dynamic postural control and lumbar neuromuscular function in patients with non-specific low back pain: a randomized controlled trial

ZHAO Jianbin, YAO Yingce, WU Jing, XUE Boshi, YANG Xiaowei, ZHOU Zhipeng, ZHENG Liangliang()   

  1. College of Sports and Health, Shandong Sport University, Ji'nan, Shandong 250102, China
  • Received:2024-05-31 Revised:2024-07-08 Published:2024-09-25 Online:2024-10-15
  • Contact: ZHENG Liangliang, E-mail: zhengliangliang@sdpei.edu.cn
  • Supported by:
    Shandong Social Science Research Plan(20CTYJ17)

Abstract:

Objective To explore the effect of muscle energy technique (MET) on dynamic posture control and lumbar neuromuscular function in patients with non-specific low back pain.
Methods From March to June, 2022, 30 college students with non-specific low back pain from Shandong Sport University were randomly divided into control group (n = 15) and intervention group (n = 15). The control group received health education, and the intervention group received MET, for four weeks. They were assessed with Visual Analogue Scale (VAS) of pain, Oswestry Disability Index (ODI), Y-balance test and trunk flexion-relaxation test before and after intervention.
Results VAS scores decreased in both groups after intervention (|t| > 2.449, P < 0.05), and it was less in the intervention group than in the control group (t = -5.068, P < 0.001); while ODI score decreased in the intervention group (t = 4.785, P < 0.001), and it was less in the intervention group than in the control group (t = -2.895, P = 0.007); the performance of Y-balance test increased (t = -3.662, P = 0.003) in the intervention group, as well as flexion-relaxation ratio of multifidus (t = -2.460, P = 0.029).
Conclusion MET is effective on alleviating pain and lumbar dysfunction, improving dynamic posture control and enhancing the function of the multifidus during flexion in patients with non-specific low back pain.

Key words: non-specific low back pain, muscle energy technique, dynamic posture control, flexion-relaxation phenomenon, randomized controlled trial

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