The purpose of this study is to investigate the association between dynamic postural control and clinical measures of (ankle and hip strength, ankle DFROM and position sense) and radiological measures in patients with unilateral CAI.
At least one significant unilateral lateral ankle sprain in which the subject was unable to walk independently without the aid of crutches (the first sprain occurred more than 12 months ago).
Repeated bouts of lateral ankle injury (last injury had to be more than three months prior to inclusion in the study).
Feeling of ankle instability "giving way", at least 2 episodes in the last 6 months (Terada et al., 2014).
Pain during intense loading.
A previous trauma or surgery to the trunk or lower extremities other than an ankle sprain.
Neurological or vestibular impairments with remaining deficits.
No participant with CAI had acutely sprained his or her ankle in the 3 months prior to the testing.
Participants will be excluded if they have participated in any rehabilitation in the past 6 months.
50 participants, with age between 18- 30 years, diagnosed with unilateral CAI will be recruited through direct referrals based on their availability to participate, thus, a sample of convenience will be used.
Cohort
Cross-sectional
Not listed
Y- balance test
It is a dynamic balance test that assesses an individual's ability to maintain balance while reaching in three directions (anterior, posteromedial, and posterolateral) with one leg while standing on the other.
Radiographic measurements validated for non weight bearing radiographs (Talocrural Angle and Talar Tilt)
Tibiotalar contact ratio: this measurement represents congruency of the ankle joint on the lateral view . The measurements include the radius of the talus in mm, the height of the talus (h) in mm, and the tibiotalar sector (α) in degrees. Talar Tilt: It is the angle between the longitudinal axis of the tibia and joint orientation line of the tibiotalar joint. It is categorized as varus (\< 87°), normal (87-91°) or valgus (\> 91°) position of the ankle.
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