Chronic Ankle Instability.
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 18 to 35 years old The initial sprain must have occurred at least 12months prior to the study enrollment At least 1 ankle sprain was associated with inflammatory symptoms Having ‘‘giving way’’ or ‘‘feeling of instability. At least 1 ankle sprain resulted in at least 1 interrupted day of desired physical activity The most recent injury must have occurred more than 3 months before enrollment in the study. Having unilateral ankle sprain
Exclusion criteria
Exclusion criteria: A history of previous surgery to the musculoskeletal structures in either lower extremity A history of fracture in either lower extremity requiring realignment Acute injury to the musculoskeletal structures of other joints of the lower extremity in the previous 3 months that affected joint integrity and function and resulted in at least 1 day of interrupted desired physical activity
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Time of short and medium latency response. Timepoint: Before and 24 hours after treatment. Method of measurement: The time of medium and short latency response will be calculated based on a Baseline-Based Method. Thus, the time of short latency response is considered as a moment that Electromyography (EMG) activity will higher than the mean value plus 3 standard deviations (SD) and must be above the threshold at least 10 ms. The time of medium latency response is considered as a moment that Electromyography (EMG) activity will higher than the mean value plus 3 standard deviations (SD) and Stay above the threshold at least 20 ms. The mean value was assessed in the first 20 ms after the beginning of the short latency response.;Amplitude of short and medium latency response. Timepoint: Before and 24 hours after treatment. Method of measurement: The amplitude of medium and short latency response will be calculated based on a Root Mean Square. Two 20 millisecond (ms) windows were defined. The first window started at the onset of the short latency response and the second window started 30 ms later after the onset of the short latency response. The 10 ms division between the two windows. | — |
Secondary
| Measure | Time frame |
|---|---|
| Antagonist co-activation during short and medium latency response. Timepoint: Before and 24 hours after treatment. Method of measurement: The Antagonist Co-activation for Peroneus and Tibialis Anterior Muscles The Antagonist Co-activation for Tibialis Anterior and soleus Muscles we will measure with formula. | — |
Countries
Iran (Islamic Republic of)
Contacts
Tehran University of Medical Sciences