肌肉疲劳后不同恢复手段介入效益的对比实验研究

发布时间：2018-08-26 21:21

【摘要】：目的:探讨肌肉疲劳后,被动(Passive Recovery,PR)、主动(Active Recovery,AR)、振动(Vibration Recovery,VR)和冰敷(Cryotherapy Recovery,CR)等不同恢复方式对肌肉表现(最大肌力MVC、爆发力MP、肌肉激活程度sEMG)和力学特性(肌肉硬度MS、肿胀程度SD)的影响及差异。方法:20名身体健康的普通男性大学生为受试者,平均年龄(20.4±2.3yrs.),平均身高(173.5±3.4cm),平均体重(68.7±3.9kg)。先测量非惯用手肱二头肌的SD、MS、MVC和sEMG,之后进行肘关节屈曲45°/s向心与离心收缩运动直至疲劳,再进行后测。其后以随机方式进行其中1种恢复,10min恢复后立即进行后测,各恢复方式间隔7天。以单因素重复测量方差分析检验SD、MS、MVC和sEMG在不同检测时间点的差异及恢复效果。结果:10min VR和CR均有约15%的力量恢复效果,其中VR介入后sEMG的恢复效果显著高达(32.50±16.10%)。另外,CR可以缓解疲劳后的SD,但AR后SD(28.51±2.79cm)显著高于疲劳前(27.93±2.93cm),且MS(11.14±1.58mm/2kg)相较于疲劳后(11.59±1.40mm/2kg)也显著下降。结论:CR与VR均可有效帮助疲劳后的肌力恢复,2组间恢复效果无显著差异;同比之下AR则无法改善肌肉疲劳的恢复,甚至造成SD增加且MS降低。
[Abstract]:Objective: to investigate the effects of muscle fatigue, The effects and differences of different recovery modes, such as Passive Recovery,PR, Active Recovery,AR, Vibration Recovery,VR and Cryotherapy Recovery,CR, on muscle performance (maximum muscle strength MVC, explosiveness MP, muscle activation degree sEMG) and mechanical properties (muscle hardness MS, swelling degree SD). Methods Twenty healthy male college students were studied. The average age was (20.4 卤2.3yrs.), the average height was (173.5 卤3.4cm), the average body weight was (68.7 卤3.9kg). The SD,MS,MVC and sEMG, of the biceps brachii muscles were measured first, and then flexion of the elbow joint was carried out 45 掳/ s concentric and eccentric contraction until fatigue, and then measured. After 10 minutes of recovery, one kind of recovery was carried out in a random manner, and the interval between each recovery method was 7 days. Single factor repeated measurement variance analysis was used to test the difference and recovery effect of SD,MS,MVC and sEMG at different time points. Results both VR and CR had a recovery effect of 15% after 10 minutes of VR intervention, and the recovery effect of sEMG was significantly higher than that of VR intervention (32.50 卤16.10%). In addition, CR could relieve SD, after fatigue, but SD after AR (28.51 卤2.79cm) was significantly higher than that before fatigue (27.93 卤2.93cm), and MS (11.14 卤1.58mm/2kg) was significantly lower than that after fatigue (11.59 卤1.40mm/2kg). Conclusion there is no significant difference between the two groups in the recovery of muscle strength after fatigue, but AR can not improve the recovery of muscle fatigue, even increase the SD and decrease the MS.
【作者单位】：南京森林警察学院警务技战术系;南京师范大学体育学博士后流动站;
【基金】：国家社科基金项目(15BTY023) 中央高校基本科研业务费专项资金项目资助(LGZD201709) 中国博士后科学基金资助项目(2017M611849) 江苏省青蓝工程资助(2017) 南京森林警察学院教改项目资助(ZD17101)
【分类号】：G804.2

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