Ankle Sprain Clinical Trial
Official title:
A Single Application of Electroacupuncture Improves Balance Greater Than Placebo Control in Subjects With Chronic Functional Ankle Instability
Introduction: Ankle sprains, the most common sports-related musculoskeletal injury, account
for approximately 25% of sports injuries. An estimated 40% of these individuals will
progress to develop chronic functional ankle instability (CFAI), which can significantly
affect athletic performance and activities of daily life. Stresses from the injury can
damage the ligaments, muscles, nerves and mechanoreceptors. It is widely accepted that ankle
proprioception is critical for balance and that individuals with CFAI demonstrate decreased
proprioception and altered muscular function, which impairs postural stability. The goal of
this study is to determine if a single application of electroacupuncture can have an
immediate positive outcome related to balance in individuals with CFAI.
Methods: This single blinded randomized trial will include 12 subjects receiving a single
application of electroacupuncture and 12 subjects in the placebo group receiving sham
electroacupuncture. Subjects aged 18-50 with a history of unilateral inversion ankle
sprain(s) and chronic symptoms of instability will be selected. Balance will be assessed
pre- and post-treatment using force plate data during a single-leg stance and via the Star
Excursion Balance Test (SEBT). GB-34 and GB-40 will be used for the experimental group and
non-traditional points on the medial aspect of the leg will be used for the sham
electroacupuncture group. Both will be connected to the electrical stimulation unit for 10
minutes. Results from this study may inform future research investigating the ability of EA
at decreasing the risk of ankle sprains, improving perceived stability, and reducing the
risk of subsequent degenerative changes.
A single application of electroacupuncture improves balance greater than placebo control in
subjects with chronic functional ankle instability
Specific Aim #1:
Evaluate the effect of a single application of electroacupuncture on center of pressure mean
total velocity in individuals with chronic functional ankle instability during single-leg
stance compared to placebo control.
H0: EA will not improve postural sway during single-leg stance compared to placebo control.
Specific Aim #2:
Describe the effects of a single application of EA compared to placebo on mean total
displacement, as well as the mediolateral and anterioposterior components during single-leg
stance for possible trends to inform hypothesis generation.
Specific Aim #3:
Correlate the results from the Star Excursion Balance Test with results of the single-leg
stance measures to inform hypothesis generation.
;
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject)
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