Ma Fenghao, Li Yingqi, Chen Quanhua, Mei Yu, Hu Guojiong, Yang Yajing, Xu Cong, Zheng Shaocheng, Jiang Jianke, Xu Xiaohan, Lin Jianhua
Department of Physiotherapy, Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), Tongji University School of Medicine, Shanghai, China.
Department of Rehabilitation Center, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China.
Photobiomodul Photomed Laser Surg. 2022 Dec;40(12):810-817. doi: 10.1089/photob.2022.0055. Epub 2022 Oct 26.
This study aimed to investigate the effects of photobiomodulation (PBM), low-intensity stretching, and their combination on delayed-onset muscle soreness (DOMS) in the untrained population. The relationships between DOMS and muscle function and functional performance were also tested. Fifty-four participants were randomized into four groups. Eccentric exercise was used to induce DOMS. Each group received either no treatment, PBM, stretching or PBM combined with stretching at 24, 48, and 72 h postexercise. Pressure pain threshold (PPT), numerical rating scale (NRS), single-leg forward jump (SLFJ), and maximum isometric voluntary contraction (MIVC) were measured at baseline, 24, 48, 72, and 96 h after eccentric exercise. Between-group differences were tested using two-way repeated measures analysis of variance and the relationships between DOMS and MIVC, and SLFJ were examined using Pearson's correlation analysis. The PPT at the vastus medialis and vastus lateral in the PBM combined with stretching group was significantly lower than that in control group at 72 h ( = 0.045) and 48 h ( = 0.037) postexercise. No significant between-group difference in PPT was found for the rest occasions. There was no significant between-group difference in NRS, MVIC, and SLFJ on any occasion ( ≥ 0.052). DOMS was not correlated with MIVC and SLFJ ( ≥ 0.09). PBM or low-intensity stretching did not affect DOMS and functional performance in untrained individuals. The combination of PBM and low-intensity stretching increased pain sensitivity and did not relieve soreness. The DOMS was not associated with either muscle function or functional performance.
本研究旨在调查光生物调节（PBM）、低强度拉伸及其组合对未受过训练人群延迟性肌肉酸痛（DOMS）的影响。还测试了DOMS与肌肉功能及功能表现之间的关系。54名参与者被随机分为四组。采用离心运动诱导DOMS。每组在运动后24、48和72小时分别接受不治疗、PBM、拉伸或PBM与拉伸相结合的处理。在离心运动后的基线、24、48、72和96小时测量压力痛阈（PPT）、数字评分量表（NRS）、单腿前跳（SLFJ）和最大等长自主收缩（MIVC）。组间差异采用双向重复测量方差分析进行检验，DOMS与MIVC以及SLFJ之间的关系采用Pearson相关分析进行检验。运动后72小时（P = 0.045）和48小时（P = 0.037），PBM与拉伸相结合组的股内侧肌和股外侧肌的PPT显著低于对照组。在其他时间点，组间PPT无显著差异。在任何时间点，NRS、MVIC和SLFJ的组间差异均无统计学意义（P≥0.052）。DOMS与MIVC和SLFJ均无相关性（P≥0.09）。PBM或低强度拉伸对未受过训练个体的DOMS和功能表现没有影响。PBM与低强度拉伸相结合增加了疼痛敏感性，并未缓解酸痛。DOMS与肌肉功能或功能表现均无关联。
