Zhao Xiaoguang, Tsujimoto Takehiko, Kim Bokun, Katayama Yasutomi, Ogiso Kazuyuki, Takenaka Mutsumi, Tanaka Kiyoji
Researcher, Research Academy of Grand Health, Faculty of Sports Science, Ningbo University, Zhejiang, China.
Lecturer, Faculty of Human Sciences, Shimane University, Shimane, Japan.
J Foot Ankle Surg. 2018 Nov-Dec;57(6):1157-1160. doi: 10.1053/j.jfas.2018.06.013. Epub 2018 Sep 20.
Extreme hallux valgus has been documented to be related to lower functional ability and health-related quality of life. It also has a negative effect on foot structure and biomechanical characteristics, which in turn may affect muscle strength in the foot and ankle. Thus, the purposes of this study were to determine whether there is a difference of ankle muscle strength in varied hallux valgus deformities and to investigate correlations between hallux valgus angles and ankle muscle strength. Hallux valgus angles and ankle muscle strength data were collected from 31 middle-aged Japanese women. The hallux valgus angle was measured with a 3-dimensional foot scanner; ankle muscle strength was measured with a dynamometer. Results showed no differences in ankle muscle strength between normal and mild-to-moderate hallux valgus at both 60º/second and 120º/second (p > .05). Unexpectedly, women with mild-to-moderate hallux valgus had a greater value for inversion peak torque per body weight and eversion-to-inversion ratio than those with normal hallux valgus (p = .019 and p = .022) at 120º/second. Furthermore, hallux valgus was correlated with inversion peak torque and peak torque per body weight (r = 0.47; p = .012 and r = 0.50; p = .007) and associated with eversion-to-inversion strength ratio (r = -0.47; p = .012). The findings indicated that mild-to-moderate hallux valgus did not result in a decrease in ankle muscle strength. Conversely, mild-to-moderate hallux valgus had greater ankle inversion strength in middle-aged Japanese women. Further studies are needed to investigate ankle muscle strength in severe hallux valgus deformities.
已有文献记载，重度拇外翻与较低的功能能力以及与健康相关的生活质量有关。它还会对足部结构和生物力学特征产生负面影响，进而可能影响足踝部的肌肉力量。因此，本研究的目的是确定不同拇外翻畸形情况下踝部肌肉力量是否存在差异，并研究拇外翻角度与踝部肌肉力量之间的相关性。从31名日本中年女性中收集了拇外翻角度和踝部肌肉力量数据。使用三维足部扫描仪测量拇外翻角度；使用测力计测量踝部肌肉力量。结果显示，在60°/秒和120°/秒时，正常与轻至中度拇外翻之间的踝部肌肉力量没有差异（p>.05）。出乎意料的是，在120°/秒时，轻至中度拇外翻女性的每体重内翻峰值扭矩和外翻与内翻比率的值高于正常拇外翻女性（p = .019和p = .022）。此外，拇外翻与内翻峰值扭矩和每体重峰值扭矩相关（r = 0.47；p = .012和r = 0.50；p = .007），并与外翻与内翻力量比率相关（r = -0.47；p = .012）。研究结果表明，轻至中度拇外翻不会导致踝部肌肉力量下降。相反，在日本中年女性中，轻至中度拇外翻具有更大的踝部内翻力量。需要进一步研究来调查重度拇外翻畸形中的踝部肌肉力量。
