caa a22 4500 467940916 CHVBK 20180406153012.0 cr unu---uuuuu 170328e20060201xx s 000 0 eng 10.1007/s00421-005-0074-8 doi (NATIONALLICENCE)springer-10.1007/s00421-005-0074-8 Validity of the two-parameter model in estimating the anaerobic work capacity [Elektronische Daten] [J. Dekerle, G. Brickley, A. J. P. Hammond, J. S. M. Pringle, H. Carter] The curvature of the power-time (P-t) relationship (W′) has been suggested to be constant when exercising above critical power (CP) and to represent the anaerobic work capacity (AWC). The aim of this study was to compare W′ to (1) the total amount of work performed above CP (W 90s′) and (2) the AWC, both determined from a 90s all-out fixed cadence test. Fourteen participants (age 30.5±6.5years; body mass 67.8±10.3kg), following an incremental VO2max ramp protocol, performed three constant load exhaustion tests set at 103±3, 97±3 and 90±2% P-VO2max to calculate W′ from the P-t relationship. Two 90s all-out efforts were also undertaken to determine W 90s′ (power output—time integral above CP) and AWC (power output—time integral above the power output expected from the measured VO2). W′ (13.6±1.3kJ) and W 90s′ (13.9±1.1kJ; P=0.96) were not significantly different but were lower than AWC (15.9±1.2kJ) by 24% (P=0.03) and 17%, respectively (P=0.04). All these variables were correlated (P<0.001) but great extents of disagreement were reported (0.2±6.4kJ between W′ and W 90s′, 2.3±7.2kJ between W′ and AWC, and 2.1±4.3kJ between W 90s′ and AWC). The underestimation of AWC from both W′ and W 90s′ can be explained by the aerobic inertia not taking into consideration when determining the two latter variables. The low extents of agreement between W′, W 90s′ and AWC mean the terms should not be used interchangeably. Springer-Verlag, 2005 Critical power nationallicence y -intercept nationallicence Energy contribution nationallicence Dekerle J. Laboratory of Human Movement Studies, Faculty of Sports Sciences and Physical Education, Lille 2 University, Lille, France aut Brickley G. University of Brighton, Gaudick Road, Eastbourne, BN20 7SP, East Sussex, UK aut Hammond A. J. P. University of Brighton, Gaudick Road, Eastbourne, BN20 7SP, East Sussex, UK aut Pringle J. S. M. University of Brighton, Gaudick Road, Eastbourne, BN20 7SP, East Sussex, UK aut Carter H. University of Brighton, Gaudick Road, Eastbourne, BN20 7SP, East Sussex, UK aut European Journal of Applied Physiology Springer-Verlag 96/3(2006-02-01), 257-264 1439-6319 96:3<257 2006 96 421 https://doi.org/10.1007/s00421-005-0074-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00421-005-0074-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dekerle J. Laboratory of Human Movement Studies, Faculty of Sports Sciences and Physical Education, Lille 2 University, Lille, France aut NATIONALLICENCE 700 1- Brickley G. University of Brighton, Gaudick Road, Eastbourne, BN20 7SP, East Sussex, UK aut NATIONALLICENCE 700 1- Hammond A. J. P. University of Brighton, Gaudick Road, Eastbourne, BN20 7SP, East Sussex, UK aut NATIONALLICENCE 700 1- Pringle J. S. M. University of Brighton, Gaudick Road, Eastbourne, BN20 7SP, East Sussex, UK aut NATIONALLICENCE 700 1- Carter H. University of Brighton, Gaudick Road, Eastbourne, BN20 7SP, East Sussex, UK aut NATIONALLICENCE 773 0- European Journal of Applied Physiology Springer-Verlag 96/3(2006-02-01), 257-264 1439-6319 96:3<257 2006 96 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer