LED红光照射对肘关节不同肌群肌力及运动性疲劳的影响  

Effect of LED Red Light Irradiation on Muscle Strength of Different Muscle Groups of Elbow and Sports Fatigue

作　　者：万康[1] 毛宗珍[2] 

机构地区：[1]郑州科技学院体育系,河南郑州450064 [2]武汉体育学院健康科学学院,湖北武汉430079

出　　处：《体育科技文献通报》2015年第11期29-32,共4页Bulletin of Sport Science & Technology

基　　金：湖北省自然科学基金面上项目<低强度激光消除运动性疲劳的作用及机理研究>(项目编号:2011CDB313)

摘　　要：本文旨在研究波长625nm的LED红光预照射对肘关节特定肌群等速肌力的影响及运动性疲劳恢复的情况。选20名网球专项的运动员,肘关节先后接受空白照射和LED红光照射,作自身对照,然后完成肘关节的等速肌力测试,并测血乳酸和肌酸激酶CK值。结果发现光照组肘关节伸肌群峰力矩值及平均峰力矩值显著下降;而屈肌群的峰力矩值及平均峰力矩值无明显变化;两组伸屈肌群疲劳率亦无差异。血液学指标显示,光照组血乳酸浓度在运动后即刻和运动后3分钟下降明显;肌酸激酶CK值也显著下降。结果表明LED红光照射能够显著降低肘关节伸肌群肌力,但对屈肌群肌力无明显影响。虽然等速肌力测试红光照射对肌群疲劳率无明显影响,但血液学指标显示红光照射能够促进运动疲劳的恢复。The purpose of this paper is to study the effect of wavelength of 625 nm LED red light irradiation on isokinetic muscle strength of particular muscle group of elbow and the recovery of sports fatigue. Selecting 20 tennis players whose elbows are exposed to blank and LED red light irradiation, the paper conducts a self - reflection, completes elbow isokinetic muscle strength test, and measures blood lactic acid and creatine kinase （CK value）. Results find that peak torque and average peak torque of elbow extensor of light group decrease significantly; while those of flexor demonstrate no obvious change; fatigue rate of the two groups＇ extensor and flexor displays no difference. Hematology indexes suggest that blood lactic acid concentration of light group decreases significantly inwnediately and 3 minutes after exercise; creatine kinase （CK value ） also drops significantly. Results show that LED red light irradiation can significantly reduce muscle strength of elbow extensor group, but it has no obvious effect on flexor muscle strength. Although isokinetic muscle testing red irradiation has no obvious effect on the rate of muscle fatigue, yet hematoloy indexes show that red light irradiation can promote the recovery of sports fatigue.

关 键 词：LED红光 等速肌力 峰力矩 血乳酸 CK 

分 类 号：G804[文化科学—运动人体科学]