用女大学生最大摄氧量二次测试验证的一种矩阵式负荷方案

VO_(2max)Secondary V erification Phase Test For Female College Students:a Matrix Load Scheme

目的:探讨verification phase应用于女大学生二次验证递增负荷运动测试测得最大摄氧量(VO_(2max))的可行性。方法:选取11名成年健康女大学生作为受试者,先完成递增负荷运动测试,休息10分钟后进行verification phase矩阵式验证测试,使受试者达到二次力竭。在两次测试中,使用无线遥测运动心肺测试仪(CORTEX,German)对受试者测试过程中呼出的气体进行即时分析,根据VO_(2max)判定指标(摄氧量平台、HR、RER、VE、RPE)及verification phase判定指标(△VO_(2)<±3.0%)判定11名受试者两次力竭测试的VO_(2max)。结果:两次力竭测试所测得的VO_(2max)的相对值及绝对值均无显著性差异(P>0.05),VO_(2max)次级判定指标HR_(max)、RPE_(max)均无显著性差异(P>0.05),两次测试所测得的RER_(max)具有显著性差异(P=0.000004<0.05)。7名受试者的△VO_(2)≦±3%,符合verification phase的判定标准,其余四名分别为5.00%、5.38%、-3.61%、6.32%,不符合verification phase判定标准。达到判定标准的7名受试者VO_(2max)可取两次测试所得VO_(2max)的均值或任一测试的VO_(2max)值;未达到判定标准四名受试者可选取verification phase测试所得VO_(2max)值或两次力竭测试所得VO_(2max)的均值。结论:女大学生在递增负荷运动测试中所测得的VO_(2max)的真实性可被verification phase所判定。

OBJECTIVE:To explore the feasibility of verification phase application to female college students in a secondary validation of peak oxygen uptake(VO_(2max))mesured by an incremental load exercise test.METHODS:Eleven healthy adult female college students were selected as subjects.First,they completed the Bruce incremental load exercise test,rested for 10 minutes,and then carried out the verification phase matrix validation test to make the subjects reach the scond exhaustion.In the two exhaustion tests,the wireless telemetric exercise cardio pulmonary tester(CORTEX,German)was used to immediately analyze the exhaled gas of the subjects during the test,and the VOm of 11 subjects was determined according to the VO_(2max) determination indicators(oaxygen uptake platform,HR,RER,VE,RPE)and verification phase determination indicators(△VO_(2)<±3.0%).RESULTS:The relative value and absolute value of VO_(2max) measured in the two exhaustion tests had no significant diference(P>0.05),the secondary judgment indexes HR_(max) and RPE_(max) of VO_(2max) had no sigificant difrence(P>0.05),and the RER_(max) measured in the two tests had significant diference(P=0.00,004<0.05).△VO_(2) of 7 subjects was≤±3%,which met the eriteria for verification phase.The other four subjets were5.00%,5.38%,-3.61%and 6.32%respectively,which did not meet the criteria for verification phase.VO_(2max) of 7 subjects meeting the eriteria can be taken as the mean value of VO_(2max) obtained from two tests or the VO_(2max) value of any test;Four subjects who failed to meet the criteria can choose the VO_(2max) value obtained from the verification phase test or the mean value of VO_(2max) obtained from two force tests.CONCLUSION:The authenticity of VO_(2max) mecasured by female college students in the incremental load exercise test can be determined by the venification phase.