Objective. The objective of this study is to determine the effect of whole-body vibration (WBV) exercise on the anticipatory delay of core muscles in nonspecific low back pain (NSLBP) patients. Methods. Forty participants with NSLBP were randomly divided into the WBV group and the control group. The sEMG signals of deltoid, erector spines (ES), multifidus (MF), rectus abdominis (RA), and transversus abdominus/internal oblique muscles (TrA/IO) were recorded before and after the intervention in the weight-shifting task. The relative activation time of each muscle was calculated. Results. In the WBV group, the relative activation time of bilateral MF and bilateral TrA/IO was significantly reduced on shoulder flexion (right MF: ; left MF: ; right TrA/IO: ; left TrA/IO: ). As for shoulder abduction, except for the left TrA/IO and the left RA, the relative activation time of other muscles was significantly reduced (right ES: ; left ES: ; right MF: ; left MF: ; right TrA/IO: ; right RA: ). In the control group, there was no significant difference in the relative activation time of each muscle before and after the intervention (). Conclusions. WBV exercise can effectively alleviate the anticipatory delay of core muscles in NSLBP patients, but the long-term effects still need further study. This trial is registered with ChiCTR-TRC-13003708.

中文翻译：

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全身振动运动对非特异性腰痛患者核心肌预期延迟的影响

客观的。本研究的目的是确定全身振动（WBV）运动对非特异性腰痛（NSLBP）患者核心肌肉预期延迟的影响。方法。40 名 NSLBP 参与者被随机分为 WBV 组和对照组。记录负重任务干预前后三角肌、竖脊肌（ES）、多裂肌（MF）、腹直肌（RA）和腹横肌/内斜肌（TrA/IO）的表面肌电信号。计算每块肌肉的相对激活时间。结果。在 WBV 组中，双侧 MF 和双侧 TrA/IO 的相对激活时间在肩部屈曲时显着减少（右 MF：; 左中频：; 右 TrA/IO：; 左 TrA/IO：）。至于肩外展，除了左侧TrA/IO和左侧RA外，其他肌肉的相对激活时间明显减少（右侧ES：; 左ES：; 右中频：; 左中频：; 右 TrA/IO：; 右RA：）。对照组中，干预前后每块肌肉的相对激活时间没有显着差异（）。 结论。WBV运动可以有效缓解NSLBP患者核心肌的预期延迟，但长期效果仍需进一步研究。该试验已在 ChiCTR-TRC-13003708 上注册。