“…Gait disturbances and falls are one of the most significant motor complaints in PD and a leading cause of loss of independence and institutionalization (Ashburn, Stack, Pickering, & Ward, 2001;Bloem, Hausdorff, Visser, & Giladi, 2004;Hausdorff et al, 2000). As discussed above, gait variability apparently predicts falls in older adults with 'idiopathic falls' as well as in patients with Alzheimer's disease (Azizah, Lajoie, & Teasdale, 2003;Hausdorff, Edelberg et al, 1997;Hausdorff, Rios et al, 2001;Maki, 1997;Nakamura, Meguro, & Sasaki, 1996;Visser, 1983;).…”