Effect of velocity on shoulder muscle recruitment patterns during wheelchair propulsion in nondisabled individuals: Pilot study

Qi, Liping; Wakeling, James M.; Grange, Simon; Ferguson-Pell, Martin

doi:10.1682/jrrd.2011.03.0047

Cited by 8 publications

(4 citation statements)

References 37 publications

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“…These results were obtained under maximal test conditions. However, Qi et al [30] have shown that velocity influences temporal and kinetic parameters. Thus, inducing variations in these parameters for higher velocity [30].…”

Section: Plos Onementioning

confidence: 99%

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Sprint performance and force application of tennis players during manual wheelchair propulsion with and without holding a tennis racket

et al. 2022

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The objective of this exploratory research is to study the impact of holding a tennis racket while propelling a wheelchair on kinetic and temporal parameters in a field-based environment. 13 experienced wheelchair tennis players with disabilities (36.1 ± 8.2 years, 76.8 ± 15.3 kg, 174.8 ± 17.1 cm) classified between 30/8 and first series performed two 20 m sprints in a straight line, on a tennis court: one while holding a tennis racket and the second without a tennis racket. They used their own sports wheelchair. Potential participants were excluded if they had injuries or pain that impaired propulsion. Maximal total force, maximal propulsive moment, rate of rise, maximal power output, push and cycle times and maximal velocity were measured. Sprinting while holding a tennis racket increased the cycle time by 0,051 s and push time by 0,011s. Sprinting while holding a tennis racket decreased the maximal propulsive moment, maximal power output, rate of rise and maximal velocity during propulsion by 6.713 N/m, 151.108 W, 672.500 N/s and 0.429 m/s, respectively. Our results suggest that the biomechanical changes observed associated with racket propulsion are generally in a direction that would be beneficial for the risk of injury. But sprinting holding a racket seems to decrease players propulsion performance. Working on forward accelerations with a tennis racket would be a line of work for coaches.

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Section: Plos Onementioning

confidence: 99%

“…However, Qi et al [30] have shown that velocity influences temporal and kinetic parameters. Thus, inducing variations in these parameters for higher velocity [30]. We can assume that our results obtained in maximal tests would be different in submaximal tests.…”

Section: Plos Onementioning

confidence: 99%

Sprint performance and force application of tennis players during manual wheelchair propulsion with and without holding a tennis racket

et al. 2022

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“…Possivelmente, os atletas em cadeira de rodas foram capazes de aumentar sua velocidade de movimento à medida que a tarefa se tornou mais rápida, a fim de executá-la corretamente (SANTOS et al, 2014). Este estudo corrobora as características desta amostra, visto que todos já tiveram contato com a prática esportiva (BONINGER et al, 2002;QI et al, 2012).…”

Section: Fonte -Próprio Autorunclassified

Análise biomecânica em usuários de cadeiras de rodas durante a fase inicial da autopropulsão.

Júnior¹

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“…e Gagnon et al(2015) sincronizaramos dados eletromiográficos com a aquisição de dados cinemáticos. JáMulroy et al (2004),Qi et al (2012) eYang et al (2006), utilizaram-se de sincronização com a aquisição de dados cinéticos. Outros estudos envolvendo eletromiografia e propulsão da cadeira de rodas que não necessitaram de outra metodologia como suporte, não tiveram a necessidade de definir-se início e fim do ciclo de propulsão como no experimentode Harburn e Spaulding (1986).Considerações feitas, os resultados apresentados nas Figuras 18 à 25 fornecem informações a partir de uma análise exploratória do comportamento eletromiográfico durante o curso do gesto de propulsão.…”

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Análise eletromiográfica da fase inicial da autopropulsão de cadeira de rodas manual

Komino¹

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Propelling wheelchair (CR) is related to high incidences of pain and injury in wheelchair users (WCU). Although this locomotion way be known as low efficient locomotion mode, it represents fundamental importance for these people performance in daily living activities, occupational, leisure and in their social participation. Over the studies course on propulsion in recent decades, it has recently been noted, particularly, that the initial stage of wheelchair propulsion which retires the user-wheelchair system from resting, putting it into motion, presents greater mechanical stresses. It considering this situation is executed several times during the typical wheelchair usage, it makes this relevant study object. As until current moment, there are few studies about initial stage of wheelchair propulsion and, from the neuroactivation point of view, this movement was not approached, this study aims to describe the gesture of initial stage of manual wheelchair propulsion from WCU, across electromyography, presenting the muscular activation levels achieved and the recruited behavior profile during the propulsion gesture execution. For this problem, eight muscle groups involved in this gesture were evaluated from eleven WCU. Electromyographic signals were collected from these eight muscle groups, simultaneously, during ten propulsions execution, starting from resting, of each WCU participant of the research. Regarding the muscular activation levels, an alternative normalization method was introduced. This method consists in performing the maximum isometric contraction test on the wheelchair itself. The results were showed in boxplot in order to demonstrate the activation peak as well as the remaining activation levels distribution. As the new method proposed showed limitations, a better results interpretation was not possible on calculated intensities. Regarding the muscular activation profile during the propulsion execution, the results were exposed in graphs normalized by the dynamic peak as well as in relation to a single propulsion cycle, evidencing the activated behavior at each cycle moment. According to the results based on second methodology, among the eight muscle groups examined, the ones which presented the highest activation peaks values were: the anterior deltoid (80.27%), the pectoralis major (79.27%), the wrist flexors (78, 93%) and the wrist extensors (80.65%). The findings agree with previous studies by other authors that the main effector muscle groups in CR propulsion are anterior deltoid (DA) and pectoralis major (PM).

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Effect of velocity on shoulder muscle recruitment patterns during wheelchair propulsion in nondisabled individuals: Pilot study

Cited by 8 publications

References 37 publications

Sprint performance and force application of tennis players during manual wheelchair propulsion with and without holding a tennis racket

Sprint performance and force application of tennis players during manual wheelchair propulsion with and without holding a tennis racket

Análise biomecânica em usuários de cadeiras de rodas durante a fase inicial da autopropulsão.

Análise eletromiográfica da fase inicial da autopropulsão de cadeira de rodas manual

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