Gait kinematics and kinetics in patients with chronic ankle instability and healthy controls: A statistical parametric mapping analysis.

Background: Chronic ankle instability (CAI) is associated with changes in gait biomechanics which may be related to chronic dysfunction. Traditional statistical models may be limited in their ability to assess the complex 3D movement of the lower extremity during gait. Multivariate analysis of the lower extremity kinematics may reveal unique biomechanical differences associated with CAI.

Ankle kinematics during a drop-vertical jump in patients with chronic ankle instability and healthy controls: A bivariate confidence interval comparison.

Background: Chronic ankle instability (CAI) has been associated with frontal and sagittal plane kinematic differences compared to patients with no history of ankle sprain during landing tasks. Single plane kinematics are often statistically compared to identify group differences, however, the complex, multi-planar motions of the ankle allow for unique kinematic adaptations at the joint and univariate waveform analysis may be limited in the assessment of joint motion. Bivariate confidence interval analysis allows for statistical comparisons to be made when considering the simultaneous frontal and sagittal plane kinematics of the ankle.

Effects of 4-week impairment-based rehabilitation on jump-landing biomechanics in chronic ankle instability patients.

Objective: To determine effects of 4-weeks of impairment-based rehabilitation on lower extremity neuromechanics during jump-landing.

Design: Descriptive laboratory study.

Participants: Twenty-six CAI subjects (age = 21.

Effects of rehabilitation on joint-coupling in patients with chronic ankle instability.

Chronic ankle instability (CAI) is associated with kinematic changes in the lower extremity. Alterations in joint-coupling have been identified during gait in patients with CAI. Rehabilitation remains the gold-standard for clinical treatment of CAI but little is known on the effects of rehabilitation on joint-coupling variability.

Chronic ankle instability patients exhibit higher variability in lower extremity joint-coupling variability during drop vertical jumps.

Chronic ankle instability (CAI) has been associated with biomechanical alterations during landing tasks. While joint coupling differences have been reported during gait in patients with CAI, there is no known research assessing joint coupling during a drop-vertical jumping (DVJ). Joint coupling variability measure may provide information on the sensorimotor health of these patients.