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采用MAX -I运动心肺测试系统 (美国PHYSIO -DYNE公司 )和CONCEPTⅡ型划船测功仪 (美国 ) ,测定 37名优秀赛艇运动员递增负荷运动中的气体代谢变化 ,比较分析测试过程中不同时段 (10秒和 30秒 )取值的差异及其与运动能力的关系。结果表明 :(1)各项指标的 10秒取值均高于 30秒取值 ,(2 )最大摄氧量相对值 ( VO2 max/kg)、最大呼吸频率 (BFmax)、最大心率 (HRmax)和最大呼吸商 (RQmax)的 10秒取值均显著高于 30秒取值 (P <0 0 5 ) ,(3)各项指标 10秒取值与 30秒取值均呈高度正相关 ,r=0 90 1～ 0 991(P <0 0 0 1) ,(4 ) VO2 max和VEmax10秒取值与运动员最大运动时间 (Tmax)和最大输出功率 (Pmax)的相关系数均高于 30秒取值。结论 :递增运动负荷测试过程中 ,不同时段取值所得测试结果存在一定差异 ,并与运动员运动能力相关 ,10秒取值测试结果能更准确地反映运动员机能状态和运动能力 ,特别是在接近力竭阶段时。
The changes of gas metabolism in 37 elite rowers during incremental load exercise were determined by MAX-I Cardiopulmonary Test System (PHYSIO-DYNE, USA) and CONCEPTⅡ Rowing Dynamometer (USA). The changes of 10 seconds and 30 seconds) the value of the difference and its relationship with exercise capacity. The results showed that: (1) The indexes of 10 seconds were all higher than the value of 30 seconds, (2) The relative values of maximum oxygen uptake (VO2 max / kg), maximum respiratory rate (BFmax), maximum heart rate (RQmax) of 10 seconds were significantly higher than 30 seconds (P <0 05), (3) 10 seconds of each index values and 30 seconds were highly positive correlation, r = 0 901 ~ 0 991 (P <0 0 0 1), (4) The correlation coefficients between the 10-second VO2 max and VEmax values and the maximum exercise time (Tmax) and maximum output power (Pmax) value. Conclusion: During the incremental exercise load test, there are some differences between the test results obtained in different periods of time, which are related to the exercise ability of athletes. The 10 second test results can reflect the functional status and exercise ability of athletes more accurately, especially in the proximity force Exhausted stage.