乳酸和肌酸激酶及其同工酶监测长跑运动员体能消耗和肌肉损伤

Lactate and Isoenzymes of Creatine Kinase Determination for Monitoring of Long-Distance Running Athlete Energy Expenditure and Acute Muscle Injury

目的探讨血浆乳酸、肌酸激酶及其同工酶水平在监测长跑运动员体能消耗和肌肉损伤的应用。方法选取同一年龄组的男、女运动员各30名,检测静息时及运动后的血浆乳酸、肌酸肌酶及其同工酶水平。结果男性运动员运动后乳酸为(3.97±0.35)mmol/L,女性为(3.12±0.63)mmol/L,其相应的肌酸激酶为(11036±583)和(5621±1120)mmol/L,同期静息乳酸为(1.93±0.31)和(1.12±0.13)mmol/L,相应的肌酸激酶为(136±23)和(121±20)mmol/L,静息时与运动后血浆乳酸和肌酸激酶及其同工酶差别具有统计学意义(P<0.05),而且男性运动员运动后乳酸和肌酸激酶及其同工酶较女性运动员明显增高。结论血清乳酸和肌酸激酶及其同工酶水平改变是肌肉损伤较早出现的敏感指标,可用于监测长跑运动员体能消耗和肌肉损伤。

Objective To study lactic acid and isoenzymes of creatine kinase for monitoring energy expenditure and acute muscle injury in the long-distance running athletes. Methods Select each thirty female and male athletes, lactic acid and isoenzymes of creatine kinase when resting and after exercise were examined. Results Lactic acid was （3.97±0.35）mmol/L of male athlete after training, simultaneity female athlete was （3. 12±0. 63）mmol/L, the creatine kinase was （11 036±583） and （5 621±1 120） mmol/L Otherwise when rest the lactic acid was （1.93±0.31） and （1.12±0.13）retool/L, the creatine kinase was （136±23） and （121±20）mmol/L, there was remarkable difference between rest and training （P〈0.05）, moreover the lactic acid and creatine kinase of mate athlete was higher than female. Conclusion Lactic acid and isoenzymes of creatine kinase can monitor energy exenditure and acute muscle injury in the long-distance running athlete.