Isokinetic Evaluation of Ankle Invertor and Evertor in Patients with Chronic Ankle Sprain.
- Author:
Ji Hye HWANG
1
;
Jong Moon KIM
;
Yong Taek LEE
Author Information
1. Department of Physical Medicine & Rehabilitation, Sungkyunkwan University, College of Medicine, Samsung Medical Center.
- Publication Type:Original Article
- Keywords:
Ankle sprain;
Inversion;
Eversion;
Isokinetic;
Peak torque
- MeSH:
Ankle Injuries*;
Ankle*;
Extremities;
Humans;
Muscles;
Muscular Disorders, Atrophic;
Sprains and Strains;
Torque
- From:Journal of the Korean Academy of Rehabilitation Medicine
1998;22(6):1329-1334
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: The purpose of this investigation was to document the isokinetic performance deficiencies of the invertor and evertor muscles of chronically sprained ankles. METHOD: Eversion/Inversion testing was performed by a Cybex 6000 isokinetic dynamometer at the speeds of 60degrees/sec and 120degrees/sec on 17 subjects who had unilateral chronic ankle sprain. Values were compared between the involved and uninvolved sides. RESULTS: The inversion peak torque deficits between the involved and uninvolved extremities were significantly greater than eversion deficits at 60degrees/sec and 120degrees/sec. Evertor/Invertor peak torque ratios of involved sides at 60degrees/sec were significantly greater than uninvolved sides. CONCLUSION: 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.
