Chinese Journal of Tissue Engineering Research ›› 2019, Vol. 23 ›› Issue (11): 1687-1692.doi: 10.3969/j.issn.2095-4344.1097

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Changes in muscle injury and pulse wave velocity after exercise with compression leg cuffs in college students without fitness habits

Yuan Yiwen, Gui Zhu, Zhang Hongchao   

  1.  (College of Sports, Southwest Medical University, Luzhou 646000, Sichuan Province, China)
  • Received:2018-11-12 Online:2019-04-18 Published:2019-04-18
  • About author:Yuan Yiwen, Master, Assistant lecturer, College of Sports, Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Supported by:

    the Philosophy and Social Science Planning Project of Luzhou, No. LZ17A097 (to ZHC)

Abstract:

BACKGROUND: Centrifugal exercise can induce delayed onset of muscle soreness and increase the level of creatine kinase in the blood. Increased creatine kinase level is an important indicator for evaluating muscle injury. Wearing compression leg cuffs can reduce energy consumption during running. However, whether it can delay the onset of muscle soreness remains controversial.
OBJECTIVE: To investigate the effect of downhill running with compression leg cuffs on muscle injury and arteriosclerosis index-ankle-brachial pulse wave conduction velocity and provide evidence to validate whether compression leg cuffs can reduce the degree of muscle injury.
METHODS: Fifteen male college students without fitness habits were randomly selected to wear compression leg cuffs on one foot during exercise. They were subjected to a 30-minute downhill running on a treadmill with a 70% heart rate intensity and a slope of -10°. Creatine kinase, ankle-brachial pulse wave, soreness index, active joint activity, muscle swelling, maximum isometric contraction muscle strength and ultrasonic rectus femoris muscle thickness were measured before and 24 hours after downhill running.
RESULTS AND CONCLUSION: Creatine kinase in blood and ankle-brachial pulse wave conduction velocity after 24 hours of downhill running were significantly higher than those of the pre-test, but there were no differences in these two indices between two feet. Rating of Perceived Exertion, 50% maximal autonomous isometric contraction force pain index (Visual Analogue Scale) and soreness index at 24 hours after exercise were significantly higher than those of the pre-test at both feet. There were no significant differences in the three indexes between two feet at the same time points. Muscle swelling circumference, active joint mobility, maximal autonomous isometric contraction force and rectus femoris thickness were not affected by the interaction of group factors (test foot and control foot) and time factors (pretest and 24 hours posttest). However, rectus femoris thickness and muscle swelling circumference at 24 hours after exercise were significantly higher than those before exercise. The active joint activity and maximal autonomous isometric contraction force at 24 hours after exercise were significantly lower than those before exercise. In summary, wearing compression leg cuffs cannot reduce the muscle injury caused by downhill running and the subsequent delayed muscle soreness and temporary increase in ankle-brachial pulse wave conduction velocity.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Muscles, Creatine Kinase, Arteriosclerosis, Sports Medicine, Tissue Engineering 

CLC Number: