Clinical differentiation of patients with mild diplegic cerebral palsy (CP) and idiopathic toe
walking (ITW) can be difficult. However, an involuntary extensor pattern may be a
distinguishing sign. The purpose of this study was to determine if selected gait parameters or
patterns of electromyogram (EMG) timing of quadriceps, gastrocnemius, and tibialis anterior
during knee extension while sitting can distinguish between these patients. The hypothesis
was that EMG testing for selective control of the quadriceps and gastrocnemius could …