Zadow, E and Kitic, C and Wu, SS 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]
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:||Medical and Health Sciences|
|Research Group:||Human Movement and Sports Science|
|Research Field:||Human Movement and Sports Science not elsewhere classified|
|Objective Group:||Specific Population Health (excl. Indigenous Health)|
|Objective Field:||Specific Population Health (excl. Indigenous Health) not elsewhere classified|
|Author:||Zadow, E (Ms Emma Zadow)|
|Author:||Kitic, C (Dr Cecilia Kitic)|
|Author:||Wu, SS (Dr Sam Wu)|
|Author:||Smith, ST (Associate Professor Stuart Smith)|
|Author:||Fell, JW (Associate Professor James Fell)|
|Deposited By:||Health Sciences|
|Downloads:||38 View Download Statistics|
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