Resumen de Proposed Tests for Measuring the Running Velocity at the Oxygen Consumption and Heart Rate Thresholds for Treadmill Exercise
Moh H. Malek, Terry J. Housh, Richard J. Schmidt, Jared W. Coburn, Travis W. Beck
Malek, M.H., T.J. Housh, R.J. Schmidt, J.W. Coburn, and T.W. Beck. Proposed tests for measuring the running velocity at the oxygen consumption and heart rate thresholds for treadmill exercise. J. Strength Cond. Res. 19(4):847-852. 2005.- The purposes of this study were to (a) determine if the mathematical model used to estimate the physical working capacity at the oxygen consumption threshold (PWCVO2) and physical working capacity at the heart rate threshold (PWCHRT) for cycle ergometry could be applied to treadmill running; (b) propose new fatigue thresholds called the running velocity at the oxygen uptake threshold (RVVO2) and running velocity at the heart rate threshold (RVHRT) for treadmill exercise; and (c) statistically compare the velocities at the RVVO2, RVHRT, and ventilatory threshold (VT). Seven aerobically trained adult volunteers (mean ± SD: age 24.0 ± 3.9 years, VO2 max 56.7 ± 7.1 ml·kg?1·min?1) performed a maximal treadmill test to determine VO2 peak and VT as well as four 8-minute submaximal workbouts for the determination of RVVO2 and RVHRT. One-way repeated-measures analysis of variance indicated that there were no significant (p > 0.05) mean differences among the running velocities for the RVVO2, RVHRT, and VT. The results of this study indicated that the mathematical model used to estimate PWCVO2 and PWCHRT for cycle ergometry could be applied to treadmill running. Furthermore, the RVVO2 and RVHRT test may provide submaximal techniques for estimating the VT
