Zadow, EK and Kitic, CM and Wu, SSX and Smith, ST and Fell, JW, Validity of power settings of the Wahoo KICKR Power Trainer, International Journal of Sports Physiology and Performance, 11, (8) pp. 1115-1117. ISSN 1555-0273 (2016) [Refereed Article]
|PDF (Accepted version)|
Copyright 2016 Human Kinetics, Inc. Accepted for publication
Purpose: The purpose of this study was to assess the validity of power output settings of the Wahoo KICKR Power Trainer (KICKR) using a dynamic calibration rig (CALRIG) over a range of power outputs and cadences.
Methods: Using the KICKR to set power outputs, powers of 100-999W were assessed at cadences (controlled by the CALRIG) of 80, 90, 100, 110 and 120rpm.
Results: The KICKR displayed accurate measurements of power between 250-700W at cadences of 80-120rpm with a bias of -1.1% (95% LoA: -3.6-1.4%). A larger mean bias in power were observed across the full range of power tested, 100-999W 4.2% (95% LoA: -20.1-28.6%), due to larger biases between 100-200W and 750-999W (4.5%, 95% LoA:-2.3-11.3% and 13.0%, 95% LoA: -24.4-50.3%), respectively.
Conclusion: When compared to a CALRIG, the Wahoo KICKR Power Trainer has acceptable accuracy reporting a small mean bias and narrow limits of agreement in the measurement of power output between 250-700W at cadences of 80-120rpm. Caution should be applied by coaches and sports scientists when using the KICKR at power outputs of < 200W and > 750W due to the greater variability in recorded power.
|Item Type:||Refereed Article|
|Keywords:||calibration, cycling, ergometry, training|
|Research Division:||Health Sciences|
|Research Group:||Sports science and exercise|
|Research Field:||Sports science and exercise not elsewhere classified|
|Objective Group:||Specific population health (excl. Indigenous health)|
|Objective Field:||Specific population health (excl. Indigenous health) not elsewhere classified|
|UTAS Author:||Zadow, EK (Ms Emma Zadow)|
|UTAS Author:||Kitic, CM (Dr Cecilia Kitic)|
|UTAS Author:||Wu, SSX (Dr Sam Wu)|
|UTAS Author:||Smith, ST (Associate Professor Stuart Smith)|
|UTAS Author:||Fell, JW (Associate Professor James Fell)|
|Web of Science® Times Cited:||14|
|Deposited By:||Health Sciences|
|Downloads:||75 View Download Statistics|
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