Four homogeneous patterns of gait were defined in forty-six patients who
had spastic hemiplegia secondary to cerebral palsy or other neurological
disorders by analyzing kinematic data in the sagittal plane and
electromyographic data. In Group I (twenty patients) the primary
abnormality was a drop foot in the swing phase. The thirteen patients in
Group II had a tight heel cord in the stance phase as well as a drop foot
in the swing phase. The five patients in Group III also had more proximal
involvement (that is, restricted motion of the knee) as well as an equinus
deformity of the ankle. In Group IV, the eight patients had, in addition,
restricted motion of the hip.