Yokozuka Mieko, Miki Chie, Kurogo Hirohiko, Kobayashi Takeshi, Nagai Mayumi, Katsura Rieko
Preparing Section for New Faculty of Medical Science, Fukushima Medical University, Fukushima, Japan.
Tohoku Bunka Gakuen University, Sendai, Japan.
Prog Rehabil Med. 2019 Oct 11;4:20190017. doi: 10.2490/prm.20190017. eCollection 2019.
We examined the toe flexor strength, foot morphology, and falls in community-dwelling elderly women who could walk outdoors independently without aids.
The presence or absence of falls in 1 year, the toe flexor strength, and foot morphology were recorded in 70 women. Hallux valgus was defined as a first phalangeal angle ≥16°. Falls were compared based on the presence or absence of hallux valgus using the chi-squared test. The toe flexor strength, arch height ratio (medial longitudinal arch), and spread ratio (lateral arch) were compared using the Mann-Whitney U-test according to the presence or absence of hallux valgus. Spearman's correlation coefficient was used to compare toe flexor strength and foot morphology.
No difference in the fall rate was noted between those with hallux valgus on at least one foot and those without hallux valgus. No difference in toe flexor strength was noted between feet with and without hallux valgus. Correlations were found between the hallux valgus angle and the arch height (r=-0.228, P<0.01) and spread ratios (r=0.494, P<0.001).
Among community-dwelling elderly women who can walk independently outdoors without aids, the presence or absence of hallux valgus does not affect the incidence of falls. The lack of correlation between toe flexor strength and foot morphology may support this conclusion.
我们研究了能够在户外独立行走且无需辅助工具的社区老年女性的趾屈肌力量、足部形态和跌倒情况。
记录了70名女性在1年内是否跌倒、趾屈肌力量和足部形态。拇外翻定义为第一趾骨角≥16°。使用卡方检验比较有或无拇外翻情况下的跌倒情况。根据有无拇外翻，使用曼-惠特尼U检验比较趾屈肌力量、足弓高度比（内侧纵弓）和展开比（外侧纵弓）。使用斯皮尔曼相关系数比较趾屈肌力量和足部形态。
至少有一只脚患有拇外翻的女性与无拇外翻的女性在跌倒率上没有差异。有拇外翻和无拇外翻的脚在趾屈肌力量上没有差异。发现拇外翻角度与足弓高度（r=-0.228，P<0.01）和展开比（r=0.494，P<0.001）之间存在相关性。
在能够在户外独立行走且无需辅助工具的社区老年女性中，有无拇外翻并不影响跌倒的发生率。趾屈肌力量与足部形态之间缺乏相关性可能支持这一结论。
