Effects of Wheel and Hand-Rim Size on Submaximal Propulsion in Wheelchair Athletes

Mason, Barry; Woude, Lucas H V van der; Tolfrey, Keith; Lenton, John P.; Goosey-Tolfrey, Victoria L.

doi:10.1249/mss.0b013e31822a2df0

Cited by 26 publications

(37 citation statements)

References 30 publications

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“…This is in line with Guo et al (2006) 16 who reported that the work that was done during a full propulsion cycle was significantly higher when a larger hand rim was used, although this result was found in able bodied participants. It has also been found that smaller wheels resulted in a greater rolling resistance and, therefore, an increased physiological demand and that the performance on a 20-meter sprint was better with a 65 cm wheel compared to a 59 cm wheel 17,9 . Although wheel diameter itself was not included as predictor in the models, wheel axis height and hand rim diameter were highly correlated with wheel diameter (r=.76 and r=.89, respectively; see also the correlations between predictor variables in the supplemental material II).…”

Section: Discussionmentioning

confidence: 99%

Improving Mobility Performance in Wheelchair Basketball

Veeger¹,

Witte²,

Berger³

et al. 2019

Journal of Sport Rehabilitation

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OBJECTIVE: This study aimed to investigate which characteristics of athlete, wheelchair and athlete-wheelchair interface are the best predictors of wheelchair basketball mobility performance. DESIGN: Sixty experienced wheelchair basketball players performed a wheelchair mobility performance test to assess their mobility performance. To determine which variables were the best predictors of mobility performance, forward stepwise linear regression analyses were performed on a set of 33 characteristics, including ten athlete, nineteen wheelchair and four athlete-wheelchair interface characteristics. RESULTS: Eight of the characteristics turned out to be significant predictors of wheelchair basketball mobility performance. Classification, experience, maximal isometric force, wheel axis height and hand rim diameter -which both interchangeable with each other and wheel diameter -camber angle, and the vertical distance between shoulder and rear wheel axis -which was interchangeable with seat height -were positively associated with mobility performance. The vertical distance between the front seat and the footrest was negatively associated with mobility performance. CONCLUSION:With this insight, coaches and biomechanical specialists are provided with statistical findings to determine which characteristics they could focus on best to improve mobility performance. Six out of eight predictors are modifiable and can be optimized to improve mobility performance. These adjustments could be carried out both in training (maximal isometric force) and in wheelchair configurations (e.g. camber angle).

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Section: Discussionmentioning

confidence: 99%

Improving Mobility Performance in Wheelchair Basketball

Veeger¹,

Witte²,

Berger³

et al. 2019

Journal of Sport Rehabilitation

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“…Wheelchair design has been repeatedly shown to influence propulsion in both daily living and sport [2,3], with these design parameters including seat height, depth, and angle [2,4], as well as camber [5] and wheel diameter [6]. However, the selection of optimal settings for these parameters is difficult due to the trade-off between performance factors, and the effects of these parameters being highly individualised due to differences in physical activity limitations of athletes in the sport.…”

Section: Introductionmentioning

confidence: 99%

Using a Robust Design Approach to Optimize Chair Set-up in Wheelchair Sport

Haydon

Pinder²,

Grimshaw

et al. 2018

The 12th Conference of the International Sports Engineering Association

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Abstract:Optimisation of wheelchairs for court sports is currently a difficult and time-consuming process due to the broad range of impairments across athletes, difficulties in monitoring on-court performance, and the trade-off set-up that parameters have on key performance variables. A robust design approach to this problem can potentially reduce the amount of testing required, and therefore allow for individual on-court assessments. This study used orthogonal design with four set-up factors (seat height, depth, and angle, as well as tyre pressure) at three levels (current, decreased, and increased) for three elite wheelchair rugby players. Each player performed two maximal effort sprints from a stationary position in nine different set-ups, with this allowing for detailed analysis of each factor and level. Whilst statistical significance is difficult to obtain due to the small sample size, meaningful difference results aligning with previous research findings were identified and provide support for the use of this approach.

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“…In addition, the new test situation becomes more realistic in terms of simulating everyday scenarios. 2 Different possibilities of physical activity and sport for disabled individuals include the practice of wheelchair basketball, which has been investigated through a number of different scientific studies, including the assessment of physiological aspects, 8,9-10 nutritional factors, 11 kinematic features [12][13] and injuries. 14,15 When considering how athletes use wheelchairs for movement during a game, the function of the trunk has become one of the main parameters for the verification of functional capacity, including one of the main factors used in the class evaluation of the athlete.…”

Section: ' Introductionmentioning

confidence: 99%

“…These movements include trunk stability, sitting balance and trunk movement in the horizontal, frontal and sagittal planes, such as pushing and handling the wheelchair, dribbling, passing, shooting and rebounding the ball. 8 In the matter of postural balance, the literature contains studies conducted on a balance board in order to measure seated postural stability in individuals with disabilities; 6,[13][14][15][16][17] this is because individuals with SCI use different postural strategies to control sitting balance during the execution of task. 6,18 For wheelchair athletes, trunk balance is crucial for movement and the performance analysis of the trunk with respect to postural balance is a basic parameter for functional evaluation.…”

Section: ' Introductionmentioning

confidence: 99%

Emotional memory in patients with agoraphobic panic disorder compared to a control group

King¹,

Valença²,

Cardoso³

et al. 2014

Medical Express

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OBJECTIVE: Postural control of the trunk is important to stabilize the entire body and to generate muscle force during sports activities. When the trunk is stable, it is easier and safer to transfer applied forces along the body to perform any motor task because it enhances muscle action and reduces joint loads. Postural control of the trunk is important to stabilize the entire body and to generate muscle force during sports activities. The aim of this study is to verify the velocity and direction of trunk movement in wheelchair basketball athletes. METHOD: Participants were 26 wheelchair basketball athletes, they were tested on the NeuroCom Balance Master System, protocol: Rhythmic Weight Shift. They were asked to sway the entire body to the right, left, forward and backward. Trials evaluated these movements in low, medium and high velocities. RESULT: Movement velocity was very significantly affected by task speed and task direction. The highest movement velocity was observed for the fast task and for the left/right direction. There was no interaction between the task and its direction. CONCLUSION: Wheelchair basketball athletes moved their body faster in the left/right direction. This result suggests that postural control is direction-dependent for the wheelchair-bound individual.

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Effects of Wheel and Hand-Rim Size on Submaximal Propulsion in Wheelchair Athletes

Abstract: A greater power requirement owing to a greater rolling resistance in 24-inch wheels increased the physiological demand and magnitude of force application during submaximal wheelchair propulsion.

Cited by 26 publications

References 30 publications

Improving Mobility Performance in Wheelchair Basketball

Improving Mobility Performance in Wheelchair Basketball

Using a Robust Design Approach to Optimize Chair Set-up in Wheelchair Sport

Emotional memory in patients with agoraphobic panic disorder compared to a control group

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