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The effects of rear-wheel camber on maximal effort mobility performance in wheelchair athletes

journal contribution
posted on 20.07.2015 by Barry Mason, Lucas H.V. van der Woude, Keith Tolfrey, Vicky Goosey-Tolfrey
This study examined the effect of rear-wheel camber on maximal effort wheelchair mobility performance. 14 highly trained wheelchair court sport athletes performed a battery of field tests in 4 standardised camber settings (15°, 18°, 20°, 24°) with performance analysed using a velocometer. 20m sprint times reduced in 18° (5.89±0.47s, P=0.011) and 20° camber (5.93±0.47s, P=0.030) compared with 24 (6.05±0.45s). Large effect sizes revealed that 18° camber enabled greater acceleration over the first 2 (r=0.53, 95% CI=0.004 to 0.239) and 3 (r=0.59, 95% CI=0.017 to 0.170) pushes compared with 24. Linear mobility times significantly improved (P≤0.05) in 15° (16.08±0.84s), 18° (16.06±0.97s) and 20° (16.22±0.84s) camber compared with 24° (16.62±1.10s). Although no statistically significant main effect of camber was revealed, large effect sizes (r=0.72, 95% CI=0.066 to 0.250) demonstrated that 18° camber reduced times taken to perform the manoeuvrability drill compared with 15°. It was concluded that 18° camber was the best performing setting investigated given its superior performance for both linear and non-linear aspects of mobility, whereas 24° camber impaired linear performance. This was likely to be due to the greater drag forces experienced. Subsequently, athletes would be recommended to avoid 24° camber and young or inexperienced athletes in particular may benefit from selecting 18° as a starting point due to its favourable performance for all aspects of mobility performance in the current study. © Georg Thieme Verlag KG Stuttgart - New York.

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Published in

International Journal of Sports Medicine

Volume

33

Issue

3

Pages

199 - 204

Citation

MASON, B. ... et al, 2012. The effects of rear-wheel camber on maximal effort mobility performance in wheelchair athletes. International Journal of Sports Medicine, 33 (3), pp.199-204

Publisher

© Georg Thieme Verlag KG Stuttgart

Version

NA (Not Applicable or Unknown)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2012

Notes

This paper is closed access.

ISSN

0172-4622

eISSN

1439-3964

Language

en

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