Differences in Right and Left Lower Limb Function in Lateral Perturbation in Half-Knee Squat

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  • KATO Asumi
    Department of Rehabilitation, Takenotsuka Rehabilitation Hospital
  • SASAKI Makoto
    Department of Physical Therapy, Graduate School of Health Sciences, Akita University

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Other Title
  • 片膝しゃがみ位における側方からの外乱刺激に対する下肢機能の左右の相違
  • カタヒザ シャガミ イ ニ オケル ソクホウ カラ ノ ガイラン シゲキ ニ タイスル カシ キノウ ノ サユウ ノ ソウイ

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Abstract

[Purpose] The objective of this study was to clarify the differences in right and left lower limb function. [Subjects] The subjects were 24 healthy students. [Method] In the half-knee squat position, a perturbative stimulus was delivered to the pelvis with a weight. The stimulus was delivered from both sides with the dominant and non-dominant side legs extended, and the center of gravity (COG) sway and the floor reaction force were measured and compared among the four conditions. [Results] Maximum lateral COG sway was significantly smaller when the perturbation was delivered to the dominant side with the dominant leg extended, than when it was delivered to the non-dominant side with the non-dominant leg extended. Also, maximum vertical floor reaction force was significantly smaller when the perturbation was delivered to the dominant side with the non-dominant leg extended, than when it was delivered to the non-dominant side with the dominant leg extended. [Conclusion] The above results suggest that the non-dominant leg is better at coping with perturbation, and show one of the differences in function between the dominant and non-dominant legs.<br>

Journal

  • Rigakuryoho Kagaku

    Rigakuryoho Kagaku 25 (3), 447-450, 2010

    The Society of Physical Therapy Science

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