Department of Psychiatry, Shiga University of Medical Science, Tsukinowa-cho, seta, Otsu, Shiga, 520-2192, Japan.
Department of Physical Therapy, Osaka Yukioka College of Health Science, Osaka, Japan.
J Foot Ankle Res. 2022 May 30;15(1):42. doi: 10.1186/s13047-022-00548-1.
It is unclear whether the toe grip force (TGF) of the dominant foot (DF) and the lower limb function asymmetry (LLFA) in older adults are associated with fall risk. Therefore, this study aimed to investigate the effect of lower limb properties (such as TGF, muscle strength, and plantar sensation) on the risk of falls in older adults, while considering the foot dominance and asymmetry of lower limb function.
This study was a cross-sectional study. We determined whether the lower limb function of the DF and non-dominant foot (non-DF) and LLFA had any effect on the fall risk in 54 older adults (mean ± standard deviation: 72.2 ± 6.0, range: 60-87 years). We examined the participants' fall history, Mini-Mental State Examination (MMSE) score, lower limb function, and LLFA. To determine fall risk factors, we performed logistic regression analysis, with presence or absence of falls as the dependent variable.
The independent variables were age, sex, MMSE score, two-point discrimination of the heel (non-DF) as plantar sensation index, and the TGF of both feet. Only the TGF of the DF was identified as a risk factor for falls (p < 0.05).
In older adults, clinicians should focus on the TGF of the DF as a risk factor for falls.
This study was retrospectively registered. https://center6.umin.ac.jp/cgi-bin/ctr/ctr_up_rec_f1.cgi .
目前尚不清楚老年人优势脚的跖趾抓力（TGF）和下肢功能不对称（LLFA）是否与跌倒风险有关。因此，本研究旨在调查下肢特性（如 TGF、肌肉力量和足底感觉）对老年人跌倒风险的影响，同时考虑到足部优势和下肢功能的不对称性。
这是一项横断面研究。我们确定了优势脚（DF）和非优势脚（非-DF）以及 LLFA 的下肢功能是否对 54 名老年人（平均±标准差：72.2±6.0，范围：60-87 岁）的跌倒风险有任何影响。我们检查了参与者的跌倒史、简易精神状态检查（MMSE）评分、下肢功能和 LLFA。为了确定跌倒的危险因素，我们进行了逻辑回归分析，以是否发生跌倒作为因变量。
独立变量为年龄、性别、MMSE 评分、非优势脚（非-DF）的两点辨别觉作为足底感觉指数，以及双脚的 TGF。只有 DF 的 TGF 被确定为跌倒的危险因素（p<0.05）。
在老年人中，临床医生应将 DF 的 TGF 作为跌倒的危险因素。
本研究为回顾性注册。https://center6.umin.ac.jp/cgi-bin/ctr/ctr_up_rec_f1.cgi。
