The method quantifies a person’s Useful Threshold Energy (FTP) by assessing the best common energy output sustainable for a 20-minute length. The common energy achieved throughout this time is then adjusted, usually decreased by 5%, to estimate the FTP. For instance, if an athlete averages 300 watts throughout the 20-minute effort, the estimated FTP can be 285 watts (300 x 0.95). This adjusted worth represents the estimated maximal energy output that may be maintained in a sustained, quasi-steady-state.
Establishing a dependable FTP is important for efficient coaching prescription in biking and different endurance sports activities. It allows individualized coaching zones, optimizing exercises for particular physiological variations. Traditionally, longer length time trials have been utilized to estimate FTP; nonetheless, the 20-minute evaluation provides a sensible and time-efficient various, balancing accuracy and feasibility for athletes of various ranges.