Conclusions The main findings from this systematic review were balance training provided the most consistent improvements in self-reported function for patients with CAI
Objective To identify which therapeutic intervention may be most effective for improving self-reported function in patients with chronic ankle instability ( CAI ) .
A comparison of electromyography of gluteus medius and maximus in subjects with and without chronic ankle instability during two functional exercises.
OBJECTIVE To determine how gluteus medius ( Gmed ) and maximus ( Gmax ) activate during closed-chain functional rehabilitative exercises in those with and without chronic ankle instability ( CAI ) . DESIGN Cohort study . Subjects performed ten repetitions of a rotational lunge and single-leg rotational squat while surface electromyography was used to collect mean muscle activity  of the Gmed and Gmax . MAIN OUTCOME MEASURES Mean electromyography activity of the Gmed and Gmax at maximum excursion was compared between Groups and Exercises using a separate 2-way repeated measures analysis of variance design for each muscle . SETTING University biomechanics lab . PARTICIPANTS Nine healthy ( 8F , 1 M ) and nine CAI subjects ( 8F , 1 M ) RESULTS : For Gmax activation , there was a statistically significant Group by Exercise interaction ( F(3,48 ) = 4.84 , p = 0.043 ) . A Scheffe 's post-hoc test revealed that during the rotational squat , the CAI group had significantly lower Gmax activation ( 51.1 ± 31.0 % ) than the healthy group ( 78.6 ± 44.8 % ) . There were no statistically significant findings for the Gmed . In the healthy group , the Gmax produced significantly higher activation during rotational squat ( 78.6 ± 44.8 % ) compared to the rotational lunge ( 57.6 ± 31.9 % ) . CONCLUSION Because the CAI group had significantly less Gmax activation than the healthy group during the rotational squat at the point of maximum excursion , and because the rotational squat showed significantly higher Gmax activation compared to the rotational lunge , it may be important for clinicians to implement the rotational squat during rehabilitation for those with CAI . Future prospect i ve and intervention research involving hip musculature in those with CAI is recommended
Conclusions The main findings from this systematic review were balance training provided the most consistent improvements in self-reported function for patients with CAI
Objective To identify which therapeutic intervention may be most effective for improving self-reported function in patients with chronic ankle instability ( CAI ) .