Comparison of inter-trial recovery times for the determination of critical power and W' in cycling.

Karsten, B, Hopker, J., Jobson, S., Baker, J., Petrigna, L., Klose, A. and Beedie, C. (2016) Comparison of inter-trial recovery times for the determination of critical power and W' in cycling. Journal of Sports Sciences, 35 (14). pp. 1420-1425. ISSN 0264-0414.

[img] PDF
Comparision of inter-tiral recovery times for the determination of critical power and W' in cycling.pdf - Accepted Version
Restricted to Repository staff only until 17 February 2018.

Download (681kB)

Abstract

Critical Power (CP) and W' are often determined using multi-day testing protocols. To investigate this cumbersome testing method, the purpose of this study was to compare the differences between the conventional use of a 24-h inter-trial recovery time with those of 3 h and 30 min for the determination of CP and W'.
METHODS:
9 moderately trained cyclists performed an incremental test to exhaustion to establish the power output associated with the maximum oxygen uptake (p[Formula: see text]max), and 3 protocols requiring time-to-exhaustion trials at a constant work-rate performed at 80%, 100% and 105% of p[Formula: see text]max. Design: Protocol A utilised 24-h inter-trial recovery (CP24/W'24), protocol B utilised 3-h inter-trial recovery (CP3/W'3), and protocol C used 30-min inter-trial recovery period (CP0.5/W'0.5). CP and W' were calculated using the inverse time (1/t) versus power (P) relation (P = W'(1/t) + CP).
RESULTS:
95% Limits of Agreement between protocol A and B were -9 to 15 W; -7.4 to 7.8 kJ (CP/W') and between protocol A and protocol C they were -27 to 22 W; -7.2 to 15.1 kJ (CP/W'). Compared to criterion protocol A, the average prediction error of protocol B was 2.5% (CP) and 25.6% (W'), whilst for protocol C it was 3.7% (CP) and 32.9% (W').
CONCLUSION:
3-h and 30-min inter-trial recovery time protocols provide valid methods of determining CP but not W' in cycling.

Item Type: Article
Subjects: R Medicine > RC Internal medicine > RC1200 Sports medicine
Divisions: Faculty of Social and Applied Sciences > School of Human and Life Sciences
Depositing User: Chris Beedie
Date Deposited: 12 Oct 2016 11:18
Last Modified: 16 Dec 2017 20:04
URI: https://create.canterbury.ac.uk/id/eprint/14947

Actions (login required)

Update Item (CReaTE staff only) Update Item (CReaTE staff only)

Downloads

Downloads per month over past year

View more statistics

Share

Connect with us

Last edited: 29/06/2016 12:23:00