Abstract：
BACKGROUND:Running is a fundamental movement skill important for participation in physical activity. Children with cerebral palsy (CP) who are classified at Gross Motor Function Classification Scale (GMFCS) level I and II are able to run but may be limited by neuromuscular impairments. RESEARCH QUESTION:To describe the propulsion strategy (PS) during running of children and adolescents with CP. METHODS:This cross-sectional study used kinematic and kinetic data collected during running from 40 children and adolescents with unilateral or bilateral CP and 21 typically developing (TD) children. Maximum speed, peak ankle power generation (A2), peak hip flexor power generation in swing (H3) and PS (PS = A2/(A2 + H3)) were calculated. Linear mixed models were developed to analyze differences between groups. RESULTS:Maximum speed, A2 and PS were significantly less in children with CP GMFCS level I than in TD children and significantly less in children in GMFCS level II than level I. For children with CP, A2 and PS were significantly smaller in affected legs than non-affected legs. In affected legs, H3 was significantly larger in children in GMFCS level II than GMFCS level I but not different between TD children and children in GFMCS level II. SIGNIFICANCE:The contribution of ankle plantarflexor power to forward propulsion in running is reduced in young people with CP and is related to GMFCS level. This deficit appears to be compensated in part by increased hip flexor power generation but limits maximum sprinting speed.
journal_name
Gait Posturejournal_title
Gait & postureauthors
Chappell A,Gibson N,Williams G,Allison GT,Morris Sdoi
10.1016/j.gaitpost.2019.02.018subject
Has Abstractpub_date
2019-05-01 00:00:00pages
305-310eissn
0966-6362issn
1879-2219pii
S0966-6362(18)31742-9journal_volume
70pub_type
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