Non-exhaustive tests for critical power estimation

摘要

Objective. - The aim of this study was to propose a new method that allows for the estimation of critical power (CP) from non-exhaustive tests using ratings of perceived exertion (RPE). Methods. - Twenty-two subjects underwent two practice trials for ergometer and Borg 15-point scale familiarization, and adaptation to severe exhaustive exercise. After then, four exercise bouts were performed on different days for the estimation of CP and anaerobic work capacity (AWC) by linear work-time equation, and CP_(15), CP_(17), AWC_(15) and AWC_(17) were estimated using the work and time to attainment of RPE15 and RPE17 based on the Borg 15-point scale. Results. -The CP, CP_(15) and CP_(17) (170-177W) were not significantly different (P>0.05). However, AWC, AWC_(15) and AWC_(17) were all different from each other. The correlations between CP_(15) and CP_(17), with CP were strong (R = 0.871 and 0.911, respectively), but the AWC_(15) and AWC_(17) were not significantly correlated with AWC. Conclusion.- Sub-maximal RPE responses can be used for the estimation of CP from non-exhaustive exercise protocols.