血流阻断下低强度抗阻肌力训练对健康大学生肌肉体积的影响

Effects of low intensity resistant muscle strength training on muscle volume of healthy college students under blood blow blocking

目的:探讨血流阻断下低强度抗阻肌力训练对健康大学生肌肉体积的影响。方法:选取健康大学生二十四名随机抽签分成两组,采取干预方法进行对比实验,第一组用宽100×70 mm的气囊,阻断压力100 mmhg阻断左手前臂近端进行肱二头肌抗阻训练,抗阻训练条件取20%1RM(一次最大用力,one repetition maximum,1RM)重复15次,每重复15次为1组,训练3组,每组间隔时长30s,连续训练4周,每周训练频次是3。第二组无血流阻断进行相同条件的肱二头肌抗阻训练。实验结果:1.两组实验结果显示肘上5 cm和肘下5 cm肌肉围度总增加量存在明显差异(P<0.05),即血流阻断实验有统计学意义。2.第一组实验前后肘关节上5cm肌肉围度存在明显差异(P<0.05)、肘关节下5cm肌肉围度存在明显差异(P<0.05),说明血流阻断下肱二头肌低强度抗阻收缩训练促进肌肉围度增大。结论:血流阻断下低强度抗阻训练能促进肌肉体积增大和肌肉力量增强,可以避免训练损伤和慢性疾病发生,是值得研究推广的肌肉训练或康复处方。

Objective ： To investigate the effect of low intensity resistance training on the muscle volume of healthy college students underblood flow blocking. Methods： Twenty -four healthy college students were randomly divided into two groups. The intervention methodwas used in the study. The patients in the first group adopted the wide 100 ~ 70mm balloon with blocking pressure of 100mmhg for bra-chial biceps resistance training at the left proximal forearm. The resistance training was 20% 1RM （ one repetition maximum, 1RM） withrepeating 15 times. Each repetition of 15 times was defined as 1 group, and a total of 3 groups training with each interval time of 30s.Continuous training for the patients in the first group lasted 4 weeks, and the training frequency is 3 in one week. Patients in the secondgroup took the same brachial biceps resistance training without the blood flow blocking. Results ： 1. There were significant differences inthe total muscle volume at the 5cm upper elbow and 5cm lower elbow in two groups（ P 〈 0.05） . It indicated that the blood flow bloc-king test was statistically significant. 2. There was a significant difference （P 〈 0.05） in the 5cm muscle circumference of the elbowjoint before and after the treatment in the first group, indicating that low intensity resistance on the contraction of the biceps muscle un-der blood flow blocking can promote muscle circmnference increases. Conclusion： Low intensity resistance training can promote musclevolume and increase muscle strength under blood flow blocking. It also can avoid training injuries and occurrence of chronic diseases,which is worth promotion.