Department of Industrial Health, College of Health Sciences, Catholic University of Pusan, Busan 46252, Korea.
Department of Physical Therapy, College of Life and Health Science, Hoseo University, Asan 31499, Korea.
Int J Environ Res Public Health. 2020 Oct 1;17(19):7189. doi: 10.3390/ijerph17197189.
In recent years, a three-dimensional ankle exercise has been proposed as a practice for strengthening the intrinsic foot muscles, however this topic still requires further research. This study aimed to compare the activities of the intrinsic muscles in healthy participants during 3D foot-ankle exercises, namely, short foot (SF), and toe spread out (TSO).
Prior to the experiment, 16 healthy adults were trained on how to perform SF, TSO, and 3D foot-ankle exercises for an hour. Once all participants passed the foot-ankle exercise performance test, we randomly measured the activity of the intrinsic foot muscles using electromyography while the patients were performing foot-ankle exercises.
The abductor hallucis (AbH), extensor hallucis longus (EHL), and flexor hallucis brevis (FHB) activities showed significant differences among the exercises for intrinsic foot muscle strengthening ( < 0.01). Additionally, the AbH/AdH (adductor hallucis) ratio showed significant differences among the exercises for strengthening the intrinsic foot muscles ( < 0.01).
Our results showed that the 3D extension exercise is as effective as the therapeutic exercise in terms of the AbH and FHB activities, and the AbH/AdH ratio. On the contrary, the 3D flexion exercise showed superiority in terms of the EHL activity.
近年来，提出了一种三维踝关节运动作为加强内在足部肌肉的练习，但这一主题仍需要进一步研究。本研究旨在比较健康参与者在三维足踝运动（短足 SF 和趾展 TSO）中内在肌肉的活动。
在实验前，16 名健康成年人接受了如何进行 SF、TSO 和三维足踝运动的训练，时长为一小时。一旦所有参与者都通过了足踝运动表现测试，我们就在患者进行足踝运动时，使用肌电图随机测量内在足部肌肉的活动。
在增强内在足部肌肉的运动中，拇展肌（AbH）、伸趾长肌（EHL）和屈趾短肌（FHB）的活动显示出显著差异（<0.01）。此外，在增强内在足部肌肉的运动中，AbH/AdH（拇展肌）的比值显示出显著差异（<0.01）。
我们的结果表明，在 AbH 和 FHB 活动以及 AbH/AdH 比值方面，三维伸展运动与治疗性运动一样有效。相反，三维弯曲运动在 EHL 活动方面表现出优势。
