Quantification Research on Different Load Weight-Bearing Running Biochemical Indexes of Rats
Research Objective: To discuss exercise performance and biochemical reactions of different load weightbearing running of rats. Research Methods: 24 male 3month-old SD rats were randomly divided into 3 groups (n=8), namely, a none weight-bearing tunning group, a 35％ maximum load weight-bearing running group, a 75％ maximum load weight-bearing running group. After weight-bearing running training for 6 weeks, the maximum weight-bearing ca-pacity, the blood lactic acid value and serum CK value of rats were tested and compared. Research Results: 30m/min speed running and 45m/min speed running respectively enabled the lactic acid value to generate first and second inflection points; weight-bearing running increased the serum CK-M value with the increase of bearing weight and load, and the blood lactic acid value and the serum CK value were significantly increased. Conclusion: 30m/min is the an-aerobic threshold intensity of rat running; maximum load capacity of rats is about 65％ of sole weight; weight-bearing running with appropriate load can not damage muscle fibers and can effectively mobilize II type muscle fiber, 75％ maximum load weight-bearing running can mobilize II type muscle fiber to be fully raised, but can cause muscle fiber damage.
weight-bearing running exercise performance quantification
Huaping Shang
School of P.E. East China Jiaotong University,Nanchang, Jiangxi, P. R.China
国际会议
南昌
英文
227-233
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）