“…Studies in HD animal models suggest that exercise improves motor function, 6 delays the progression of cognitive dysfunction, 6 and provides neuroprotection in the form of delayed disease onset. 7,8 In recent years, several small scale feasibility studies have investigated the effects of exercise and physical therapy in HD [9][10][11][12][13][14][15] with improvements observed in dynamic balance, 9,1010,11 gait speed, function and level of physical activity, 10,14 fitness, 13 cognitive function, 16 neuroplasticity, 16 and self-reported quality of life measures. 11,12 These studies included early to mid-stage participants, and although they demonstrated proof-of-concept, were underpowered to establish efficacy.…”