Graduate School of Health Science, Sapporo Medical University, Sapporo, Japan.
Second Division of Physical Therapy, School of Health Sciences, Sapporo Medical University, Sapporo, Japan.
Foot Ankle Surg. 2021 Dec;27(8):851-854. doi: 10.1016/j.fas.2020.11.002. Epub 2020 Nov 6.
In the general population, the flexor hallucis longus (FHL) often has tendinous slips to lesser toes and the number of FHL slips varies between individuals. The purpose of this study was to investigate the relationship between the number of FHL tendinous slips in an individual foot and its toe flexor strength.
Forty healthy men were included in the study. The FHL branch test was used to assess each subject for the number of FHL tendinous slips. Toe flexor strength in each toe was measured using a force gauge. A two-way ANOVA was used to compare toe flexor strength between groups classified according to the number of FHL slips.
The group of subjects with FHL branching to the second toe was the most common (20/40). The toe flexor strength ratio of the third toe was significantly lower in feet lacking FHL branching to the third toe than in those feet which did have branching to the third toe (P = 0.005).
Toe flexor strength was affected by FHL tendinous slips. Considering the number of the FHL tendinous slips an individual foot has may be useful in clinical practice for rehabilitation or training of toe flexor muscles.
在普通人群中，屈肌长肌腱（FHL）通常有肌腱滑向小趾，并且 FHL 滑的数量因人而异。本研究的目的是探讨个体足部 FHL 肌腱滑的数量与其趾屈肌力量之间的关系。
本研究纳入了 40 名健康男性。使用 FHL 分支试验评估每个受试者 FHL 肌腱滑的数量。使用测力仪测量每个脚趾的趾屈肌力量。使用双向方差分析比较根据 FHL 滑的数量分类的组之间的趾屈肌力量。
FHL 分支到第二趾的受试者最为常见（20/40）。缺乏 FHL 分支到第三趾的足部的第三趾趾屈肌力量比有分支到第三趾的足部的第三趾趾屈肌力量明显更低（P = 0.005）。
趾屈肌力量受 FHL 肌腱滑的影响。考虑个体足部 FHL 肌腱滑的数量在临床实践中可能有助于趾屈肌肌肉的康复或训练。
