George J D, Vehrs P R, Allsen P E, Fellingham G W, Fisher A G
Department of Physical Education, Brigham Young University, Provo, UT 84601.
Med Sci Sports Exerc. 1993 May;25(5):643-7.
The purpose of this study was to develop a single-stage submaximal treadmill jogging test for the estimation of maximal oxygen uptake (VO2max). VO2max was measured in 129 relatively fit individuals (males = 84, females = 45), 18-29 yr, using a maximal treadmill protocol (mean +/- SD; VO2max = 48.3 +/- 6.2 ml.kg-1 x min-1, range = 35.6 to 62.3 ml.kg-1 x min-1). The treadmill test required subjects to sustain a comfortable, submaximal jogging pace (4.3-7.5 mph; level grade) until a steady-state heart rate was achieved (approximately 3 min). To help ensure that a submaximal level of exertion was realized for the treadmill jogging test, treadmill speed and exercise HR criteria were established that restricted treadmill speed to < or = 7.5 mph for males and < or = 6.5 mph for females and steady-state exercise HR < or = 180 bpm. Multiple regression analysis (N = 66) to estimate VO2max from the treadmill jogging test yielded the following validation (V) model (r(adj) = 0.84, SEE = 3.2 ml.kg-1 x min-1): VO2max = 54.07 + 7.062 * GENDER (0 = female; 1 = male) - 0.1938 * WEIGHT (kg) + 4.47* SPEED (miles.h-1) - 0.1453 * HEART RATE (bpm). Cross-validation (CV) of the treadmill jogging test comparing observed and estimated VO2max (N = 63) resulted in r(adj) = 0.88, SEE = 3.1 ml.kg-1 x min-1. The results indicate that this submaximal single-stage treadmill jogging test based on multiple linear regression provides a valid and convenient method for estimating VO2max.
本研究的目的是开发一种单阶段次最大强度跑步机慢跑测试，用于估算最大摄氧量（VO2max）。采用最大强度跑步机测试方案，对129名年龄在18 - 29岁、身体相对健康的个体（男性84名，女性45名）进行VO2max测量（平均值±标准差；VO2max = 48.3±6.2 ml·kg-1·min-1，范围为35.6至62.3 ml·kg-1·min-1）。跑步机测试要求受试者保持舒适的次最大强度慢跑速度（4.3 - 7.5英里/小时；平坡），直至达到稳定心率（约3分钟）。为确保在跑步机慢跑测试中实现次最大强度的运动，制定了跑步机速度和运动心率标准，将男性跑步机速度限制为≤7.5英里/小时，女性限制为≤6.5英里/小时，稳定状态运动心率≤180次/分钟。通过多元回归分析（N = 66），根据跑步机慢跑测试估算VO2max，得出以下验证（V）模型（调整后r = 0.84，标准误 = 3.2 ml·kg-1·min-1）：VO2max = 54.07 + 7.062×性别（0 = 女性；1 = 男性） - 0.1938×体重（kg） + 4.47×速度（英里/小时） - 0.1453×心率（次/分钟）。对跑步机慢跑测试进行交叉验证（CV），比较观察到的和估算的VO2max（N = 63），结果为调整后r = 0.88，标准误 = 3.1 ml·kg-1·min-1。结果表明，这种基于多元线性回归的单阶段次最大强度跑步机慢跑测试为估算VO2max提供了一种有效且便捷的方法。
