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

To determine effects of 4-weeks of impairment-based rehabilitation on lower extremity neuromechanics during jump-landing. Descriptive laboratory study. Twenty-six CAI subjects (age = 21.4 ± 3.1 sex=(M = 7,F = 19), height = 169.0 ± 8.8 cm, weight = 71.0 ± 13.8 kg) completed 15 jump-landing trials pri...

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Bibliographic Details
Published in:Physical therapy in sport 2021-03, Vol.48, p.201-208
Main Authors: Feger, Mark A., Donovan, Luke, Herb, C. Collin, Hart, Joseph M., Saliba, Susan A., Abel, Mark F., Hertel, Jay
Format: Article
Language:English
Subjects:
Ankle
Ankle Injuries - physiopathology
Ankle Injuries - rehabilitation
Ankle Joint - physiopathology
Ankle sprain
Biomechanical Phenomena
Biomechanics
Digitization
Electromyography
Exercise Therapy
Female
Humans
Investigations
Joint Instability - physiopathology
Joint Instability - rehabilitation
Kinematics
Knee Joint - physiology
Lower Extremity - physiology
Male
Muscle function
Muscle, Skeletal - physiology
Pathology
Physical therapy
Posture
Questionnaires
Range of motion
Rehabilitation
Sensors
Sports medicine
Sports training
Surface electromyography
Therapeutic exercise
Young Adult
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Summary:To determine effects of 4-weeks of impairment-based rehabilitation on lower extremity neuromechanics during jump-landing. Descriptive laboratory study. Twenty-six CAI subjects (age = 21.4 ± 3.1 sex=(M = 7,F = 19), height = 169.0 ± 8.8 cm, weight = 71.0 ± 13.8 kg) completed 15 jump-landing trials prior to and following 12 supervised rehabilitation sessions. Frontal and sagittal lower extremity kinematics and kinetics and sEMG amplitudes (anterior tibialis, peroneus brevis, peroneus longus, and medial gastrocnemius). Means and 90% confidence intervals (CIs) were calculated for 100 ms prior to and 200 ms following ground contact. Areas where pre- and post-rehabilitation CIs did not overlap were considered significantly different. Kinematic and kinetic peaks and kinematic excursion were compared with paired t-test (P ≤ 0.05). Following rehabilitation, CAI subjects exhibited less ankle (2.1° (0.8, 3.4), P 
ISSN:1466-853X
1873-1600
DOI:10.1016/j.ptsp.2020.07.005