Fardy P S, Hellerstein H K
Med Sci Sports. 1978 Spring;10(1):7-12.
Twelve male subjects were compared on continuous and intermittent treadmill test of identical exercise stages. Each stage was three minutes in duration. Oxygen uptake during minutes one and two was significantly lower in the intermittent test. Heart rate VE and R were lower and oxygen pulse greater during all three minutes at moderate and strenuous workloads and throughout recovery of the intermittent protocol. There were no significant differences in exercise minute three or recovery VO2 and blood pressure. Regression equations for the relationship between VO2 oxygen pulse heart rate, VE systolic blood pressure and workload during the third minute of exercise included curvilinear functions whereas the regression equations between VO2 and heart rate, and between R and workload were linear. Slopes of percent maximal heart rate vs. percent percent maximal VO2 of the third minute were not different. Heart rate responded more rapidly to onset and cessation of exercise than did VO2. A near steady state was obtained during low and moderate workloads prior to minute three supporting the feasibility of reducing test time. Result suggest a slight advantage in intermittent testing compared to continuous testing for evaluating cardiovascular function and for exercise prescription.
对12名男性受试者在相同运动阶段的连续和间歇跑步机测试中进行了比较。每个阶段持续三分钟。在间歇测试中，第一分钟和第二分钟的摄氧量显著较低。在中等和剧烈运动负荷期间以及整个间歇方案的恢复过程中，间歇测试的所有三分钟内心率、每分通气量（VE）和呼吸商（R）较低，而氧脉搏较高。运动第三分钟或恢复阶段的摄氧量（VO₂）和血压没有显著差异。运动第三分钟期间VO₂、氧脉搏、心率、VE、收缩压与运动负荷之间关系的回归方程包括曲线函数，而VO₂与心率之间以及R与运动负荷之间的回归方程是线性的。第三分钟最大心率百分比与最大VO₂百分比的斜率没有差异。心率对运动开始和停止的反应比VO₂更快。在第三分钟之前的低和中等运动负荷期间获得了接近稳定状态，这支持了减少测试时间的可行性。结果表明，与连续测试相比，间歇测试在评估心血管功能和运动处方方面略有优势。
