Yamauchi J, Koyama K
Graduate School of Human Health Sciences, Tokyo Metropolitan, University, Tokyo, Japan.
Int J Sports Med. 2015 Jun;36(7):592-5. doi: 10.1055/s-0034-1396824. Epub 2015 Apr 1.
This study sought to investigate the influence of ankle braces on maximum strength of plantar and toe flexor muscles. 21 healthy participants volunteered, and their maximum isometric toe flexor muscle strength (TFS), plantar flexor muscle strength (PFS) and passive range of motion of the ankle joint (ROM) were measured. TFS, PFS and ROM were compared among barefoot as a control (BAR), ankle support (SUP) and ankle splint (SPL) conditions. TFS was significantly lower in SPL (90.7±32.5 N, p<0.0001) compared to BAR (117.3±39.5 N) and it was significantly lower in SPL than in SUP (110.5±36.7 N, p=0.0001), whereas it was not significantly different between SUP and BAR (p=0.2587). On the contrary, PFS and ROM were significantly lower in SUP (p=0.0087 for PFS; p=0.0095 for ROM) and SPL (p<0.0001 for PFS; p<0.0001 for ROM) compared to BAR, and they were significantly lower in SPL than in SUP (p=0.0073 for PFS; p<0.0001 for ROM). The ankle support could provide ankle joint stabilization without a large decrease in the muscle strength of the foot. The proper use of an ankle brace is required to prevent major impairment of the muscle functions of the ankle-foot complex.
本研究旨在调查踝关节支具对跖屈肌和趾屈肌最大力量的影响。21名健康参与者自愿参与，测量了他们的最大等长趾屈肌力量（TFS）、跖屈肌力量（PFS）以及踝关节被动活动范围（ROM）。在作为对照的赤脚（BAR）、踝关节支撑（SUP）和踝关节夹板（SPL）三种条件下对TFS、PFS和ROM进行了比较。与BAR（117.3±39.5 N）相比，SPL组的TFS显著降低（90.7±32.5 N，p<0.0001），且SPL组的TFS显著低于SUP组（110.5±36.7 N，p=0.0001），而SUP组和BAR组之间无显著差异（p=0.2587）。相反，与BAR组相比，SUP组（PFS，p=0.0087；ROM，p=0.0095）和SPL组（PFS，p<0.0001；ROM，p<0.0001）的PFS和ROM显著降低，且SPL组的PFS和ROM显著低于SUP组（PFS，p=0.0073；ROM，p<0.0001）。踝关节支撑可以在不大幅降低足部肌肉力量的情况下提供踝关节稳定性。需要正确使用踝关节支具以防止踝足复合体肌肉功能的重大损害。
