Reflex excitability and isometric force production in cerebral palsy: the effect of serial casting

Abstract
During passive dorsiflexion, the angle of stretch-reflex onset was earlier in the dorsiflexion range for children with spastic cerebral palsy (CP) (N=10) compared with controls (P0.32), but increased reflex threshold (P<0.03) and a decline in restraint to imposed stretch (P<0.002) were evident. A rightward shift in the length-tension curve illustrated that peak tension was generated in dorsiflexion rather than plantar flexion following casting (P<0.001). The gains were still evident at follow-up although generally to a lesser extent.