Clinical Research Directory

Inclusion Criteria: * aged 5 years to 19 years * typically developing with no diagnosed medical conditions that affect movement, OR with a diagnosis of bilateral cerebral palsy (including diplegia, tetraplegia, and quadriplegia) where the lower limbs are more affected than the upper limbs * ability to independently step up, with or without assistive devices. Exclusion Criteria: * lower limb surgery in the past year * botulinum toxin injections to the lower limb muscles in the past 6 months * cognitive dysfunction that would make following directions difficult * comorbidities that would make participation unsafe.