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Six weeks of strength and proprioception training does not affect muscle fatigue and static balance in functional ankle instability
Powers ME, Buckley BD, Kaminski TW, Hubbard TJ, Ortiz C
Journal of Sport Rehabilitation 2004;13(3):201-227
clinical trial
4/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

CONTEXT: The combined effects of strength and proprioception training, especially in individuals with ankle instability, have not been studied extensively. OBJECTIVE: To examine the influence of 6 weeks of strength and proprioception training on measures of muscle fatigue and static balance in those with unilateral functional ankle instability (FAI). DESIGN: Pretest-posttest, randomized groups. SETTING: A climate-controlled sports-medicine research laboratory. SUBJECTS: 38 subjects with self-reported unilateral FAI. Measurements: Muscle fatigue was determined using the median power frequency (fmed) from an electromyographic signal, and static balance was assessed using center-of-pressure values obtained from a triaxial force plate. RESULTS: There were no significant effects of the strength or proprioception training on our measures of muscle fatigue and static balance. CONCLUSIONS: Strength training, proprioception training, and the combination of the 2 failed to improve postural-stability characteristics in a group of subjects with FAI.
Copyright Human Kinetics. Reprinted with permission from Human Kinetics (Champaign, IL).

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