Ankle Injuries, Ankle Inversion Sprain
Conditions
Brief summary
Although altered biomechanics has been well documented as an impairment associated with chronic ankle instability (CAI), effective interventions targeting biomechanics with long-term outcomes measuring patient-reported outcomes (PROs) are absent. Evidence suggests that external focus of attention (ExFOCUS), internal focus of attention (InFOCUS) feedback, and auditory feedback during movement training can alter biomechanics in other patient populations, with ExFOCUS and auditory enhancing retention of learned biomechanics. Therefore, this randomized controlled trial will determine if a 4-week (12 session) impairment-based rehabilitation program that includes feedback (ExFOCUS or InFOCUS or Auditory) can (1) decrease ankle inversion kinematics and lateral plantar pressure during walking and (2) improve self-reported function.
Interventions
OTHERExternal focus of attention visual feedback
Patients will receive external focus of attention visual feedback during the impairment-based rehabilitation program.
OTHERExternal focus of attention auditory feedback
Patients will receive external focus of attention auditory feedback during the impairment-based rehabilitation program.
OTHERInternal focus of attention video feedback
Patients will receive internal focus of attention visual feedback during the impairment-based rehabilitation program.
OTHERNo feedback
Patients will receive no feedback during the impairment-based rehabilitation program.
Sponsors
University of North Carolina, Charlotte
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
No
Inclusion criteria
* Characterized as having chronic ankle instability (CAI) by reporting a history of recurrent ankle sprains, with the first sprain occurring longer than 12 months ago. Participants will have lingering symptoms, and disability, but have not actively sought treatment for their CAI. * All participants will be physically active: Participating in some form of physical activity for at least 20 min per day, three times per week.
Exclusion criteria
* Neurological or vestibular disorders affecting balance * Currently seeking medical care for CAI * History of ankle surgery * History of ankle sprain within the past 6 weeks * History of other musculoskeletal injuries within the past 6 weeks * Current/previous self-reported disability due to lower extremity pathology that may adversely affect neuromuscular function
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Changes from baseline in lower extremity kinematics and kinetics during walking | Immediate post-intervention, 1-month post-intervention, 3-months post-intervention | Ankle, knee, and hip motion and moments during walking measured by a 3D motion capture system and in shoe plantar pressure system |
| Changes from baseline in self-reported ankle function | Immediate post-intervention, 1-month post-intervention, 3-months post-intervention | Changes from baseline in self-reported function as measured by the Foot and Ankle Ability Measure (FAAM) Activities of Daily Living and Sport questionnaire. Scores range from 100% (no decrease in function) to 0% (complete loss of function). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes from baseline in ankle range of motion measured in degrees | Immediate post-intervention, 1-month post-intervention, 3-months post-intervention | Four different ankle ranges of motion will be measured |
| Changes from baseline in ankle maximum voluntary isometric strength | Immediate post-intervention, 1-month post-intervention, 3-months post-intervention | Ankle maximum voluntary isometric strength will be measured during four different ankle positions using a hand-held dynamometer. |
| Changes from baseline in static and dynamic balance | Immediate post-intervention, 1-month post-intervention, 3-months post-intervention | Static balance will be measured via a force plate and dynamic balance will be measured using the Star Excursion Balance Test |
Countries
United States
Outcome results
None listed