School of Kinesiology, Auburn University, Auburn, AL 36849, USA.
Department of Applied Medicine and Rehabilitation, Indiana State University, Terre Haute, IN 47809, USA.
Int J Environ Res Public Health. 2021 May 7;18(9):4966. doi: 10.3390/ijerph18094966.
Military foot marches account for 17-22% of Army musculoskeletal injuries (MSI), with low back pain (LBP) being a common complaint. Core-exercise and whole-body vibration (WBV) have been shown to decrease LBP in patients with chronic low back MSI. This study investigated if WBV and/or core-exercise influenced LBP or posture associated with a military ruck march. A randomized control trial with three groups: (1) WBV and core-exercise (WBVEx); (2) core-exercise alone (Ex); and (3) control evaluated the effects of core-exercise and WBV on LBP during/after a two 8 K foot marches with a 35 lb rucksack. The intervention groups completed three weeks of core-exercise training with/without WBV. Outcome measurements included visual analog scale (VAS), algometer, posture and electromyography (EMG). LBP, pressure threshold, and posture were elevated throughout the foot march regardless of group. LBP remained elevated for 48 h post foot march ( = 0.044). WBVEx and Ex did not have a significant effect on LBP. WBVEx and Ex both decreased muscle sensitivity and increased trunk flexion ( < 0.001) during the second foot march (FM2). The 8 K foot marches significantly increased LBP. Core-exercise training with/without WBV decreases low back muscle sensitivity. WBV and core-exercise increases trunk flexion which may help improve performance and may influence LBP.
军事徒步行军占军队肌肉骨骼损伤（MSI）的 17-22%，其中下背痛（LBP）是常见的抱怨。核心运动和全身振动（WBV）已被证明可减少慢性下腰痛 MSI 患者的 LBP。本研究调查了 WBV 和/或核心运动是否会影响与军事负重行军相关的 LBP 或姿势。一项随机对照试验，分为三组：（1）WBV 和核心运动（WBVEx）；（2）单独核心运动（Ex）；和（3）对照组评估核心运动和 WBV 对负重 35 磅背包进行两次 8 公里行军期间/之后的 LBP 的影响。干预组完成了为期三周的核心运动训练，包括/不包括 WBV。结局测量包括视觉模拟量表（VAS）、压痛计、姿势和肌电图（EMG）。无论组如何，在整个行军过程中，LBP、压力阈值和姿势均升高。负重行军后 48 小时 LBP 仍升高（= 0.044）。WBVEx 和 Ex 对 LBP 没有显著影响。在第二次行军（FM2）中，WBVEx 和 Ex 均降低了肌肉敏感性并增加了躯干屈曲（<0.001）。8 公里行军明显增加了 LBP。带/不带 WBV 的核心运动训练可降低下背部肌肉敏感性。WBV 和核心运动增加了躯干屈曲，这可能有助于提高性能，并可能影响 LBP。
