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Journal of the Korean Academy of Rehabilitation Medicine 1998;22(6):1329-1334.
Isokinetic Evaluation of Ankle Invertor and Evertor in Patients with Chronic Ankle Sprain.
Hwang, Ji Hye , Kim, Jong Moon , Lee, Yong Taek
Department of Physical Medicine & Rehabilitation, Sungkyunkwan University, College of Medicine, Samsung Medical Center.
만성 족부 염좌 환자에서 족관절 내반근과 외반근의 등속성 근력 평가
황지혜, 김종문, 이용택
성균관대학교 의과대학 삼성서울병원 재활의학교실

The purpose of this investigation was to document the isokinetic performance deficiencies of the invertor and evertor muscles of chronically sprained ankles.

Eversion/Inversion testing was performed by a Cybex 6000 isokinetic dynamometer at the speeds of 60o/sec and 120o/sec on 17 subjects who had unilateral chronic ankle sprain. Values were compared between the involved and uninvolved sides.

The inversion peak torque deficits between the involved and uninvolved extremities were significantly greater than eversion deficits at 60o/sec and 120o/sec. Evertor/Invertor peak torque ratios of involved sides at 60o/sec were significantly greater than uninvolved sides.

We conclude that chronic ankle sprains associate an ankle invertor weakness rather than an evertor weakness. Ankle invertor weakness might be resulted from a disuse atrophy and painful ankle inversion. Further prospective study is needed to determine the relationship between the invertor weakness and the chronic ankle sprain.

Key Words: Ankle sprain, Inversion, Eversion, Isokinetic, Peak torque


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