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Corrective Exercises Improve Movement Efficiency and Sensorimotor Function but Not Fatigue Sensitivity in Chronic Ankle Instability Patients

A Randomized Controlled Trial

Bagherian, Sajad, MSc*; Rahnama, Nader, PhD*; Wikstrom, Erik A., PhD, ATC

Clinical Journal of Sport Medicine: May 2019 - Volume 29 - Issue 3 - p 193–202
doi: 10.1097/JSM.0000000000000511
Original Research

Objective: To investigate the effect of corrective exercises on functional movement patterns, sensorimotor function, self-reported function, and fatigue sensitivity in collegiate athletes with chronic ankle instability (CAI).

Design: A randomized controlled trial.

Setting: Laboratory of sports sciences.

Participants: Forty male volunteers were randomly assigned to the experimental group (age 21.2 ± 1.7 years, height 174.5 ± 6.1 cm, and weight 69.6 ± 6.9 kg) or the control group (age 20.9 ± 1.8 years, height 178.2 ± 6.6 cm, and weight 68.8 ± 8.1 kg).

Intervention: Participants in the experimental group performed supervised corrective exercises 3 times per week for 8 weeks. Fatigue was induced with a progressive treadmill protocol before and after the 8-week intervention.

Main Outcome Measures: Outcomes included movement efficiency during 3 squat tasks, static and dynamic postural control, strength of the ankle musculature, joint position sense, and self-reported function with the Foot and Ankle Ability Measure subscales. These outcomes were assessed before and immediately after fatiguing treadmill running both before and after 8-weeks of corrective exercises.

Results: Significant improvements in movement efficiency, sensorimotor function, and self-reported function were noted in the experimental group relative to the control group (P < 0.001), in a nonfatigued state. However, in a fatigued stated, the experimental intervention only improved static postural control (P = 0.016) relative to the control group.

Conclusions: These findings demonstrate that 8-weeks of corrective exercises were effective at enhancing movement efficiency, sensorimotor function, and self-reported function in collegiate athletes with CAI. However, this intervention program has limited abilities at reducing the effects of fatigue.

*Department of Sports Injuries and Corrective Exercises, University of Isfahan, Isfahan, Iran; and

Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Corresponding Author: Nader Rahnama, PhD, Department of Sports Injuries and Corrective Exercises, University of Isfahan, Isfahan, Iran 81746-73441 (

The authors report no conflicts of interest.

Received April 06, 2017

Accepted July 25, 2017

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