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Title: The effects of rear-wheel camber on maximal effort mobility performance in wheelchair athletes
Authors: Mason, Barry S.
van der Woude, Lucas H.V.
Tolfrey, Keith
Goosey-Tolfrey, Victoria L.
Issue Date: 2012
Publisher: © Georg Thieme Verlag KG Stuttgart
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
Abstract: 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.
Description: This paper is closed access.
Version: Closed access
DOI: 10.1055/s-0031-1295443
URI: https://dspace.lboro.ac.uk/2134/18304
Publisher Link: http://dx.doi.org/10.1055/s-0031-1295443
ISSN: 0172-4622
Appears in Collections:Closed Access (Design School)

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