A New Training to Enhance Physical Activity in Adolescents With Cerebral Palsy

Inclusion Criteria: * have a confirmed diagnosis of spastic cerebral palsy or spina bifida * independent ambulatory * able to follow verbal instructions * willing to commit to participate for the full study Exclusion Criteria: * had previous orthopedic surgery or botulinum toxin A injection in the lower limb within past 6 months * had a structured lower limb exercise training within the past 6 months * plan to go for any structured outside-of the-study exercise training * had any heart, lung, vision, hearing or bodily issues that can interfere with participation and completion of the study * had any other diseases that interfere with physical activity.