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No Electricity Treadmill Curve In contrast to traditional motorised treadmills no electricity treadmill curve are powered solely by the user's movement. These treadmills that are self-powered can be used to perform a variety of cardio workouts in the gym and include HIIT. Previous gait retraining research has suggested that running on a curved non-motorized treadmill triggers a change in gait patterns. This could result in a decrease in running economy and a reduction in th