Effects of 4-week impairment-based rehabilitation on jump-landing biomechanics in chronic ankle instability patients.
Phys Ther Sport
; 48: 201-208, 2021 Mar.
Article
en En
| MEDLINE
| ID: mdl-33515967
ABSTRACT
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 = 21.4 ± 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. MAIN OUTCOMEMEASURES:
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).RESULTS:
Following rehabilitation, CAI subjects exhibited less ankle (2.1° (0.8, 3.4), P < 0.01) and hip (2.0° (0.5, 3.7), P = 0.01) frontal plane excursion and lower peak hip abduction (2.5° (0.0, 5.0), P = 0.05). There was less ankle (5.0° (1.7, 8.3), P < 0.01) and knee (3.4° (0.8, 6.0), P = 0.01) sagittal plane excursion following rehabilitation. There was decreased peroneus longus activity from 9 ms to 135 ms post ground contact and decreased peak plantar flexion moment (0.08 N∗m/kg (0.01, 0.13), P = 0.02) following rehabilitation.CONCLUSION:
Progressive impairment-based rehabilitation resulted in reductions in kinematic excursion and peroneus longus muscle activity, suggesting a more efficient landing strategy.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Traumatismos del Tobillo
/
Terapia por Ejercicio
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Inestabilidad de la Articulación
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Articulación del Tobillo
Límite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Phys Ther Sport
Asunto de la revista:
MEDICINA ESPORTIVA
/
MEDICINA FISICA
Año:
2021
Tipo del documento:
Article