Chénier Félix, Alberca Ilona, Marquis Etienne, Gagnon Dany H, Faupin Arnaud
Université du Québec à Montréal, Faculty of Sciences, Department of Physical Activity Sciences, Montreal, Canada; Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR), Montreal, Canada.
Université de Toulon, Impact de l'Activité Physique sur la Santé (UR IAPS n°201723207F), Campus de La Garde, CS60584, F-83041 Toulon, France.
Clin Biomech (Bristol). 2022 Jan;91:105545. doi: 10.1016/j.clinbiomech.2021.105545. Epub 2021 Dec 9.
Wheelchair basketball is one of the most popular Paralympic sports. Dribbling a ball while propelling is a key feature of wheelchair basketball. Very few studies have investigated the biomechanical impact of dribbling. This study aims to analyze the impact of dribbling on the amplitude and symmetry of spatiotemporal and kinetic parameters of wheelchair propulsion.
Ten experienced wheelchair basketball athletes (31.5 ± 10.6 years old; 7 men, 3 women) with various classifications performed eight 9-m sprints along a straight line on a basketball court: four sprints using classic synchronous propulsion, and four sprints while dribbling a ball down the court.
Dribbling decreased velocity, mean propulsive moments and the force rate of rise, as well as increased push time, force rate of rise asymmetry and angular impulse asymmetry. All kinetic variables were asymmetric and higher on the dominant limb.
The combination of reduced velocity and propulsive moments when dribbling indicates that wheelchair basketball athletes may deliberately preserve a safety margin of acceleration to adapt to uncontrolled ball rebounds. Dribbling was not associated with any factors associated with an increased risk of musculoskeletal disorders.
轮椅篮球是最受欢迎的残奥会运动项目之一。在推动轮椅时运球是轮椅篮球的一个关键特征。很少有研究调查运球的生物力学影响。本研究旨在分析运球对轮椅推进时空参数和动力学参数的幅度及对称性的影响。
10名不同分级的经验丰富的轮椅篮球运动员（年龄31.5±10.6岁；7名男性，3名女性）在篮球场上沿直线进行8次9米冲刺：4次使用传统同步推进冲刺，4次在运球沿球场冲刺。
运球降低了速度、平均推进力矩和力上升率，同时增加了推球时间、力上升率不对称性和角冲量不对称性。所有动力学变量都是不对称的，且优势肢体上的变量更高。
运球时速度和推进力矩降低表明，轮椅篮球运动员可能会故意保留一定的加速安全余量，以适应球的意外反弹。运球与任何与肌肉骨骼疾病风险增加相关的因素均无关联。
