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Coefficients of variation (CV) of stride length, stride time, step length, step time, and step with during preferred speed treadmill walking (top) and speed-matched treadmill walking (middle) in persons with essential tremor (ET) and age-matched healthy older adults (HOA). The α values resulting from the detrended fluctuation analyses for these same gait parameters during preferred speed treadmill walking is shown on bottom for both groups. * indicates p<0.05.
