Level, Uphill, and Downhill Running Economy Values Are Correlated Except on Steep Slopes.

ABSTRACT: The aim of this study was first to determine if level, uphill, and downhill energy cost of running (ECR) values were correlated at different slopes and for different running speeds, and second, to determine the influence of lower limb strength on ECR. Twenty-nine healthy subjects completed a randomized series of 4-min running bouts on an instrumented treadmill to determine their cardiorespiratory and mechanical (i.e., ground reaction forces) responses at different constant speeds (8, 10, 12, and 14 km·h^-1) and different slopes (-20, -10, -5, 0, +5, +10, +15, and +20%). The subjects also performed a knee extensor (KE) strength assessment. Oxygen and energy costs of running values were correlated between all slopes by pooling all running speeds (all r ² ≥ 0.27; <

SUBMITTER: Lemire M 

PROVIDER: S-EPMC8281813 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature