Accuracy and validity of commercially available kayak ergometers
| Autor: | Aaron J. Coutts, David Aitken, Thiago Oliveira Borges, Nicola Bullock |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Ergometry
Coefficient of variation Physical Therapy Sports Therapy and Rehabilitation 030229 sport sciences 030204 cardiovascular system & hematology 03 medical and health sciences 0302 clinical medicine Statistics Calibration Linear Models Orthopedics and Sports Medicine Simulation Sport Sciences Mathematics Water Sports |
| Popis: | Methods:This study compared 3 commercially available ergometers for within- and between-brands difference to a first-principle calibration rig. Results:All ergometers underestimated true mean power, with errors of 27.6% ± 3.7%, 4.5% ± 3.5%, and 22.5% ± 1.9% for the KayakPro, WEBA, and Dansprint, respectively. Within-brand ergometer power differences ranged from 17 ± 9 to 22 ± 11 W for the KayakPro, 3 ± 4 to 4 ± 4 W for the WEBA, and 5 ± 3 to 5 ± 4 W for the Dansprint. The linear-regression analysis showed that most kayak ergometers have a stable coefficient of variation (0.9–1.7%) with a moderate effect size. Conclusion:Taken collectively, these findings show that different ergometers present inconsistent outcomes. Therefore, we suggest that athlete testing be conducted on the same ergometer brand, preferably the same ergometer. Optimally, that ergometer should be calibrated using a first-principle device before any athlete testing block. |
| Databáze: | OpenAIRE |
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