Analysis of Muscle Strength Dorsal Flexor, Plantar Flexor, Invertor, and Evertor on Sportsman with Chronic Ankle Injury (CAI)

  • Abdurrasyid A. Universitas Esa Unggul
  • Irfan M. Universitas Esa Unggul
Keywords: Chronic Ankle Injury, muscle strength, chronic ankle sprain

Abstract

Introduction: Chronic ankle injury (CAI) on the athlete would be risk of repetitive injuries on the same leg. Analyzing the muscle strength of the ankle movement is expected to be a baseline data in the prevention of recurrent injuries. Method: Quantitative study of multivariate analysis, chronic ankle injury sample identified with chronic ankle instability tools (CAIT) <24 points and normal ankle (NA). Muscle strength measured dorsal flexor (DF), plantar flexor (PF), evertor (EV), and invertor (IN) using dynamometer (Newton (N)). Results: total participants were 29 individuals (31% male and 68% female) with mean age 19,86 ± 5,180 years. Samples taken from participant obtained 58 ankles divided into two groups CAI n = 26 and NA n = 32. Mean of DF strength CAI 21.04 ± 4.501 N and NA 21.44 ± 4.206 N, the average PF strength CAI 21.83 ± 3,364 N and NA 22,48 ± 4,323 N, mean of IN strength CAI 12,58 ± 3,402 and NA 14,52 ± 5,156, and mean of EV CAI 11,81 ± 3,371 N and normal 13,59 ± 4,634 N. Multivariate Tests p = 0.355> 0.05, Tests of Between-Subjects Effects Dorsal Flexor p = 0.729> 0.05, Plantar flexor p = 0,528> 0.05, invertor p = 0.105> 0.05, and evertor p = 0.106 > 0.05. Conclusion: There is no difference in muscle strength of the dorsal flexor, plantar flexor, invertor, and evertor between chronic ankle injury (CAI) conditions with normal ankle. To improve the analysis, physiotherapists need to conduct a proprioception and sport functional outcome.

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Published
2019-09-20
Section
Articles