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Road cycle TT performance: Relationship to the power-duration model and association with FTP
- Source :
- Journal of Sports Sciences. 37:902-910
- Publication Year :
- 2018
- Publisher :
- Informa UK Limited, 2018.
-
Abstract
- To determine the accuracy of critical power (CP) and W' (the curvature constant of the power-duration relationship) derived from self-paced time-trial (TT) prediction trials using mobile power meters to predict 16.1-km road cycling TT performance. This study also aimed to assess the agreement between functional threshold power (FTP) and CP.Twelve competitive male cyclists completed an incremental test to exhaustion, a FTP test and 4-5 self-paced TT bouts on a stationary bike within the lab, and a 16.1 km road TT, using mobile power meters.CP and W' derived from the power-duration relationship closely predicted TT performance. The 16.1-km road TT completion time (26.7 ± 2.2 min) was not significantly different from and was significantly correlated with the predicted time-to-completion (27.5 ± 3.3 min, r = 0.89, P 0.01). CP and FTP were not significantly different (275 ± 40 W vs. 278 ± 42 W, P 0.05); however, the limits of agreement between CP and FTP were 30 to -36 W.The findings of this study indicate that CP and W' determined using mobile power meters during maximal, self-paced TT prediction trials can be used to accurately predict 16.1-km cycling performance, supporting the application of the CP and W' for performance prediction. However, the limits of agreement were too large to consider FTP and CP interchangeable.
- Subjects :
- Adult
Male
Time Factors
File Transfer Protocol
030209 endocrinology & metabolism
Physical Therapy, Sports Therapy and Rehabilitation
Athletic Performance
Curvature
Sports Equipment
03 medical and health sciences
Oxygen Consumption
0302 clinical medicine
Time trial
Statistics
Humans
Orthopedics and Sports Medicine
Duration (project management)
Mathematics
sports equipment
Pulmonary Gas Exchange
030229 sport sciences
Bicycling
Power (physics)
Critical power
Exercise Test
Constant (mathematics)
Subjects
Details
- ISSN :
- 1466447X and 02640414
- Volume :
- 37
- Database :
- OpenAIRE
- Journal :
- Journal of Sports Sciences
- Accession number :
- edsair.doi.dedup.....741a03ad84e6f829618381d6d67724e1