Damiano and Abel4) reported that gross motor function and pediatric balance ability improved after leg-muscle-strengthenhancement
training. Dodd et al.19) reported that GMFM, gait velocity, and walking upstairs improved in children with
spastic diplegia after muscle-strength-enhancement training. Dodd et al.19) applied muscle-strength-enhancement exercises
to ankle plantar flexors and knee extensors in children with spastic diplegic cerebral palsy and reported improvement in items
D and E in GMFM. In this study, control training of the paretic leg resulted in significant improvement in GMFM, similar to
previous literature reports.