Functional Capacity in Adults With Cerebral Palsy: Lower Limb Muscle Strength Matters
| Autor: | Glen A. Lichtwark, Lee Barber, Roslyn N. Boyd, Jarred G. Gillett |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Muscle fascicle
Adult Male 030506 rehabilitation medicine.medical_specialty Adolescent Physical Therapy Sports Therapy and Rehabilitation Walk Test Isometric exercise Walking Cerebral palsy 03 medical and health sciences Young Adult 0302 clinical medicine Physical medicine and rehabilitation Foot Joints Isometric Contraction medicine Humans Muscle Strength Muscle Skeletal business.industry Cerebral Palsy Rehabilitation Muscle weakness Gross Motor Function Classification System Muscle stiffness Middle Aged medicine.disease medicine.anatomical_structure Cross-Sectional Studies Lower Extremity Joint stiffness Female medicine.symptom Ankle 0305 other medical science business 030217 neurology & neurosurgery Ankle Joint |
| Zdroj: | Archives of physical medicine and rehabilitation. 99(5) |
| ISSN: | 1532-821X |
| Popis: | Objective To investigate the relation between lower limb muscle strength, passive muscle properties, and functional capacity outcomes in adults with cerebral palsy (CP). Design Cross-sectional study. Setting Tertiary institution biomechanics laboratory. Participants Adults with spastic-type CP (N=33; mean age, 25y; range, 15–51y; mean body mass, 70.15±21.35kg) who were either Gross Motor Function Classification System (GMFCS) level I (n=20) or level II (n=13). Interventions Not applicable. Main Outcome Measures Six-minute walk test (6MWT) distance (m), lateral step-up (LSU) test performance (total repetitions), timed up-stairs (TUS) performance (s), maximum voluntary isometric strength of plantar flexors (PF) and dorsiflexors (DF) (Nm.kg −1 ), and passive ankle joint and muscle stiffness. Results Maximum isometric PF strength independently explained 61% of variance in 6MWT performance, 57% of variance in LSU test performance, and 50% of variance in TUS test performance. GMFCS level was significantly and independently related to all 3 functional capacity outcomes, and age was retained as a significant independent predictor of LSU and TUS test performance. Passive medial gastrocnemius muscle fascicle stiffness and ankle joint stiffness were not significantly related to functional capacity measures in any of the multiple regression models. Conclusions Low isometric PF strength was the most important independent variable related to distance walked on the 6MWT, fewer repetitions on the LSU test, and slower TUS test performance. These findings suggest lower isometric muscle strength contributes to the decline in functional capacity in adults with CP. |
| Databáze: | OpenAIRE |
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