Short-Burst Interval Treadmill Training Cerebral Palsy

SBLTT will consist of short-bursts (30 seconds) of high speed walking alternating with 30 seconds of low/moderate speed walking. Total duration of walking per session will be up to 30 minutes of the 30 second alternating intervals (30sec high / 30sec low/moderate) with rests as needed. Both groups will receive 40 sessions delivered 5x/week for 8 weeks. Initial speeds for high speed walking will be 75-80% of each participant's over ground baseline fast walking speed, and low/moderate speed will be 75-80% of self-selected speed calculated from the 10-Meter Walk Test.

TLTT group will receive the same number of sessions (40) delivered 5x/week for 8 weeks with a total duration of walking per session up to 30 minutes with rests as needed. TLTT will consist of walking at steady-state speeds. Initial treadmill speed will be 75-80% of over ground self-selected walking speed. The overall goal will be to achieve 30 minutes of walking at a steady-state walking speed within each session. Speed will be increased on the next session by .1 to .4mph when the subject can walk for 30 minutes on the treadmill at the current speed with an OMNI score of \< 6/10.