Ghasemi Cobra, Amiri Ali, Sarrafzadeh Javad, Jafari Hasan, Dadgoo Mehdi
Department of Physiotherapy, School of Rehabilitation, Iran University of Medical Sciences, Tehran, Iran.
Department of Health Psychology, University of Leuven, Leuven, Belgium.
J Family Med Prim Care. 2020 Feb 28;9(2):950-956. doi: 10.4103/jfmpc.jfmpc_838_19. eCollection 2020 Feb.
Muscle fatigue affects the precision of the subjects' performance and limits the range of physical and sports activities. There is limited scientific evidence to support the use of soft tissue manipulation for enhancing muscle performance and its recovery. The aim of this study is to compare the effects of soft tissue manipulation and rest on the knee extensor muscle fatigue after maximal isokinetic contractions.
Fifteen healthy females 20-30 years of age were selected for this research. This study implemented a semi-experimental test-retest measurement method. The subjects then either rested or received soft tissue manipulation on the knee extensors for a duration of 15 min. After intervention (soft tissue manipulation or rest), the parameters were evaluated for the third time.
The stability of the average of peak torque (APT), average power (AP), and visual analog scale (VAS) before performing fatigue protocol was 85%, 83%, and 31.9%, respectively. The stability after fatigue was 43%, 50%, and 93%, respectively. After maximal fatigue and a decrease in torque output to below 50% maximal torque, 15 min of soft tissue manipulation could change the APT after fatigue from a mean of 58.3 (nm) to 91.5 (nm), the AP from 39.4 to 63.6 (nm/s), and the VAS, from 90.0 to 12 (mm). But 15 min of rest could change the APT from 52.5 to 68.1 (nm), the AP from 37.6 to 48 (nm/s), and the VAS from 90.0 to 27.3 (mm).
The study showed that soft tissue manipulation was more effective than rest as a strategy to return muscles to a normal state and caused more relief in perceived fatigue.
肌肉疲劳会影响受试者表现的精准度，并限制身体活动和体育活动的范围。支持使用软组织手法来提高肌肉性能及其恢复的科学证据有限。本研究的目的是比较软组织手法和休息对最大等速收缩后膝伸肌疲劳的影响。
选取15名20 - 30岁的健康女性参与本研究。本研究采用半实验性重测测量方法。受试者随后休息或接受对膝伸肌15分钟的软组织手法治疗。干预（软组织手法治疗或休息）后，第三次评估各项参数。
在进行疲劳方案前，峰值扭矩平均值（APT）、平均功率（AP）和视觉模拟评分量表（VAS）的稳定性分别为85%、83%和31.9%。疲劳后的稳定性分别为43%、50%和93%。在最大疲劳且扭矩输出降至最大扭矩的50%以下后，15分钟的软组织手法治疗可使疲劳后的APT从平均58.3（牛米）变为91.5（牛米），AP从39.4变为63.6（牛米/秒），VAS从90.0变为12（毫米）。但15分钟的休息可使APT从52.5变为68.1（牛米），AP从37.6变为48（牛米/秒），VAS从90.0变为27.3（毫米）。
该研究表明，作为使肌肉恢复正常状态的策略，软组织手法治疗比休息更有效，且能更有效地缓解感知到的疲劳。
