Hagan R D, Strathman T, Strathman L, Gettman L R
J Appl Physiol Respir Environ Exerc Physiol. 1980 Oct;49(4):571-5. doi: 10.1152/jappl.1980.49.4.571.
The purpose of this investigation was to compare linear and curvilinear regression equations relating oxygen uptake and energy expenditure to running velocity and to examine the effects of age, sex, and maximal aerobic power on these relations in well-conditioned male and female runners. One-variable linear equations that use running velocity as the independent variable for predicting oxygen uptake and energy expenditure ahd coefficients of determination (r2) of 0.86 and 0.897, respectively. Two-variable linear equations that use body mass and velocity as independent variables had r2 values of 0.895 and 0.901 for the same relation. Age sex, and maximal aerobic power did not influence the relations between oxygen uptake, energy expenditure, and running velocity. Stepwise regression indicated that the two-variable linear equations had the highest r2 values suggesting that between the running velocities of 8.8 and 16.9 km.h-1 these equations best express the relation of oxygen uptake and energy expenditure to running velocity.
本研究的目的是比较将摄氧量和能量消耗与跑步速度相关联的线性和曲线回归方程，并研究年龄、性别和最大有氧能力对训练有素的男性和女性跑步者这些关系的影响。以跑步速度作为预测摄氧量和能量消耗的自变量的单变量线性方程，其决定系数（r2）分别为0.86和0.897。以体重和速度作为自变量的双变量线性方程对于相同关系的r2值为0.895和0.901。年龄、性别和最大有氧能力并未影响摄氧量、能量消耗与跑步速度之间的关系。逐步回归表明，双变量线性方程具有最高的r2值，这表明在8.8至16.9 km·h-1的跑步速度之间，这些方程最能表达摄氧量和能量消耗与跑步速度之间的关系。
