EFFECT OF ICING TREATMENT ON MUSCLE REACTION TIME AND FUNCTIONAL PERFORMANCE OF A SPRAINED ANKLE

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  • LEE HOSEONG
    <I>Graduate School of Comprehensive Human Sciences, Doctoral Program of Sport Medicine</I>
  • MUKAI NAOKI
    <I>Institute of Health and Sport Sciences, University of Tsukuba</I>
  • AKIMOTO TAKAYUKI
    <I>Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo</I>
  • KONO ICHIRO
    <I>Institute of Health and Sport Sciences, University of Tsukuba</I>

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Other Title
  • 足関節捻挫に対するアイシングが筋反応時間および機能性パフォーマンスに及ぼす影響
  • ソクカンセツ ネンザ ニ タイスル アイシング ガ キン ハンノウ ジカン オヨビ キノウセイ パフォーマンス ニ オヨボス エイキョウ

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[Objective] The purpose of this study was to determine whether icing treatment has an effect on muscle reaction time and functional performance of a sprained ankle. [Methods] Subjects were six persons (healthy group) and six persons who had an acute ankle sprain (patient group) . Anterior talar translation and talar tilt of the six patient group were evaluated by the stress X-ray measure. Ice treatment was applied for 20 minutes. [Results] The following points were clarified : 1) Reaction times of peroneus longus (PL) and peroneus brevis (PB) for the sprained ankle group (SA) were significantly longer than those for the non-sprained ankle group (NA) (p<0.05) . Length of time of standing on one leg with closed eyes for SA was significantly shorter than for NA (p<0.05) . 2) After icing treatment, reaction time of PL for SA tended to be shorter. Furthermore, PB significantly decreased after icing treatment (p<0.05) . Side-steps for SA were significantly increased after icing treatment (p<0.05) . 3) Reaction times of PL and PB for NA significantly increased after icing treatment (p<0.05) . Standing on one leg with closed eyes for NA significantly decreased after icing treatment (p<0.05) . [Conclusion] It was shown that icing treatment of a sprained ankle leads to a shorter muscle reaction time and an increase in the number of side-steps. Therefore, it was concluded that icing treatment of a sprained ankle might be able to improve incapacitated neuromuscular function and functional performance by acute trauma.

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