摘要
背景:离心运动会诱发延迟性肌肉酸痛,促使血液中的肌酸激酶上升,而肌酸激酶的上升是用来评估肌肉损伤情形的重要指标;穿压缩裤可减少跑步时的能量消耗,但穿压缩裤对减缓延迟性肌肉酸痛有无效益至今无定论。目的:分析穿压缩腿套进行下坡跑运动对运动后诱发肌肉损伤及动脉硬化指标——踝臂脉波传导速率的影响,从而确认穿压缩裤是否能起到降低肌肉损伤程度的功效。方法:选取15位无健身习惯的男性大学生,采取随机方式于运动中单脚穿压缩腿套,通过接受一次70%保留心跳率强度,坡度为-10°的30min跑步机上的下坡跑运动,并在下坡跑运动前及运动后24h分别进行肌酸激酶、踝臂脉波传导率、酸痛指数、主动关节活动度、肌肉肿胀围、最大自主等长收缩肌力及超声波股直肌肌肉厚度等指标测试。结果与结论:(1)不论是试验脚还是控制脚,下坡跑24h血液中肌酸激酶及踝臂脉波传导率皆显著高于前测,但两脚之间的踝臂脉波传导率无差异;(2)无论是试验脚还是控制脚,运动后24h运动自觉努力程度量表值、50%最大自主等长收缩力酸痛指数(目测类比评分)及酸痛指数值皆显著高于前测,但同一时间点比较,试验脚及控制脚3个指标值无显著差异;(3)肌肉肿胀围、主动关节活动度、最大自主等长收缩力及股直肌厚度皆不受组别因素(试验脚与控制脚)及运动前后时间因素交互作用影响,但股直肌厚度及肌肉肿胀围在运动后24 h显著高于运动前,而主动关节活动度及最大自主等长收缩力在运动后24 h显著低于运动前;(4)结果说明,穿压缩腿套无法减缓下坡跑运动所引起的肌肉损伤及随后的延迟性肌肉酸痛与暂时性的踝臂脉波传导率上升现象。
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 circumf
作者
袁艺文
桂柱
张红超
Yuan Yiwen;Gui Zhu;Zhang Hongchao(College of Sports,Southwest Medical University,Luzhou 646000,Sichuan Province,China)
出处
《中国组织工程研究》
CAS
北大核心
2019年第11期1687-1692,共6页
Chinese Journal of Tissue Engineering Research
基金
泸州市哲学社会科学规划项目(LZ17A097)
项目负责人:张红超~~
