Hassani Anthi, Kotzamanidou Mariana C, Tsimaras Vassilios, Lazaridis Savvas, Kotzamanidis Christos, Patikas Dimitrios
Laboratory of Coaching and Sport Performance, Department of Physical Education and Sport Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece.
Department of Physiotherapy, Faculty of Health and Human Sciences, Akmi Metropolitan College, Thessaloniki, Greece.
Res Dev Disabil. 2014 Jul;35(7):1433-8. doi: 10.1016/j.ridd.2014.03.034. Epub 2014 Apr 18.
The purpose of this study was to describe the performance and biomechanical parameters of the counter-movement jump for young people with ID, in comparison with age matched individuals without ID. Volunteers with ID (n=13; age=15.3 ± 1.6 years; Wisk III intelligence quotient 55.6 ± 11.2) and without ID (n=13; age=15.4 ± 1.2 years) performed maximal counter-movement jumps, while knee kinematics, vertical ground reaction forces and electromyographic activity of the vastus lateralis and biceps femoris were captured. Individuals without ID jumped higher than their counterparts with ID and had lower take-off velocity, lower knee joint power and stiffness, lower knee joint extension angle and angular velocity, longer braking and propulsion phase, lower agonist and higher antagonist EMG activity. These results give an insight on possible causes for the performance deficit in CMJ in persons with ID and give the potential for such individuals to improve their ability to jump higher and more efficiently.
本研究的目的是描述患有智力障碍（ID）的年轻人进行反向运动跳跃的表现和生物力学参数，并与年龄匹配的无智力障碍个体进行比较。患有ID的志愿者（n = 13；年龄 = 15.3 ± 1.6岁；韦氏智力量表III智商55.6 ± 11.2）和无ID的志愿者（n = 13；年龄 = 15.4 ± 1.2岁）进行最大反向运动跳跃，同时记录膝关节运动学、垂直地面反作用力以及股外侧肌和股二头肌的肌电图活动。无ID的个体比患有ID的对应个体跳得更高，且起跳速度更低、膝关节功率和刚度更低、膝关节伸展角度和角速度更低、制动和推进阶段更长、主动肌肌电图活动更低而拮抗肌肌电图活动更高。这些结果揭示了ID患者在反向运动跳跃中表现不佳的可能原因，并为这些个体提高跳高能力和效率提供了潜力。
