运动贴布和踝关节支具对疲劳、不稳定踝关节侧向下落着地时下肢关节运动的影响。
The Influence of Kinesio Tape and an Ankle Brace on the Lower Extremity Joint Motion in Fatigued, Unstable Ankles during a Lateral Drop Landing.
机构信息
Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University, Taichung 406040, Taiwan.
Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan.
出版信息
Int J Environ Res Public Health. 2021 Jun 4;18(11):6081. doi: 10.3390/ijerph18116081.
BACKGROUND
An unstable ankle along with plantar flexor muscle fatigue may exacerbate landing performance. External support may be an option to control the ankle motion and protect joints from injuries. Research goal: To investigate the immediate changes in the joint motion of a lower extremity under ankle plantar flexors fatigue conditions in athletes with unstable ankles using different external supports.
METHODS
A total of 44 participants were allocated to a control (Cn) group, an ankle brace (AB) group, and a kinesio tape (KT) group, and were asked to perform a lateral drop landing before and after a fatigue protocol. The outcome measures were fatigue-induced changes in the maximal joint angle and changes in the angle ranges of the hip, knee, and ankle.
RESULTS
Smaller changes in the maximal hip abduction were found in the AB group ( = 0.025), and the KT group exhibited smaller changes in the maximal ankle dorsiflexion ( = 0.009). The AB group landed with a smaller change in the range of hip flexion and knee flexion ( = 0.008 and 0.006). The Cn group had greater fatigue-induced changes in the COM range than AB and KT group ( = 0.002 and 0.028).
SIGNIFICANCE
Despite the beneficial effect in the postural control in the frontal plane, the use of AB might constrain the distal joint motion which might lead to an extended knee landing posture resulting in secondary injuries to the knee joint. Therefore, the use of AB in conjunction with an additional training of landing strategy might be recommended from the injury prevention perspective.
背景
踝关节不稳定以及跖屈肌疲劳可能会使落地表现恶化。外部支撑可能是控制踝关节运动并防止关节受伤的一种选择。研究目的：在踝关节不稳定的运动员中，使用不同的外部支撑物，研究跖屈肌疲劳条件下下肢关节运动的即时变化。
方法
共有 44 名参与者被分配到对照组（Cn）、踝部支具组（AB）和肌内效贴布组（KT），并要求在疲劳方案前后进行侧向跌落落地。结果测量为疲劳引起的最大关节角度变化以及髋关节、膝关节和踝关节角度范围的变化。
结果
AB 组的最大髋关节外展角度变化较小（ = 0.025），KT 组的最大踝关节背屈角度变化较小（ = 0.009）。AB 组在髋关节屈曲和膝关节屈曲的角度范围变化较小（ = 0.008 和 0.006）。与 AB 和 KT 组相比，Cn 组的重心范围的疲劳诱导变化更大（ = 0.002 和 0.028）。
意义
尽管 AB 在额状面的姿势控制中有有益的效果，但它可能会限制远端关节的运动，从而导致膝关节伸展的落地姿势，导致膝关节的继发性损伤。因此，从预防损伤的角度来看，建议结合额外的落地策略训练一起使用 AB。
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