Feuerbach J W, Grabiner M D
Department of Biomedical Engineering (Wb-3), Cleveland Clinic Foundation, OH 44195.
J Orthop Sports Phys Ther. 1993 Mar;17(3):149-54. doi: 10.2519/jospt.1993.17.3.149.
Little objective data exist regarding the effect of the Aircast Air-Stirrup on motor performance. Thus, the effect of the Aircast on the amplitude and frequency of postural sway during unilateral stance was evaluated for 15 uninjured male subjects. Postural sway during static and dynamic tests was measured using the Chattecx Balance System. Use of the Aircast improved unilateral postural control as evidenced by decreases in some of the components of postural sway. Previously, a link was made between a large amplitude of unilateral sway and a high probability of ankle injury (14). Thus, since Aircast use was found to decrease the amplitude of unilateral sway, it may also be beneficial in reducing the probability of injury. Although the scope of this study did not allow for differentiation among the complex systems involved in postural control, the possibility of the Aircast enhancing afferent feedback was proposed. The restricted inversion-eversion range of motion associated with the Aircast, in conjunction with the present observation that unilateral stability was enhanced with its use, suggests that the Aircast may provide a valuable prophylactic role in helping to reduce the incidence of ankle injuries.
关于Aircast空气支具对运动表现的影响，客观数据很少。因此，对15名未受伤的男性受试者评估了Aircast空气支具对单腿站立时姿势摆动幅度和频率的影响。使用Chattecx平衡系统测量静态和动态测试中的姿势摆动。使用Aircast改善了单侧姿势控制，姿势摆动的一些组成部分减少证明了这一点。以前，单侧摆动幅度大与脚踝受伤的高概率之间存在联系（14）。因此，由于发现使用Aircast可减小单侧摆动幅度，它在降低受伤概率方面可能也有益处。尽管本研究的范围不允许区分姿势控制中涉及的复杂系统，但有人提出Aircast增强传入反馈的可能性。与Aircast相关的受限内翻-外翻运动范围，结合目前观察到的使用它可增强单侧稳定性，表明Aircast在帮助降低脚踝受伤发生率方面可能发挥有价值的预防作用。
