Gait as a biomarker? Accelerometers reveal that reduced movement quality while walking is associated with Parkinson's disease, ageing and fall risk. - Matthew A. Brodie; Nigel H. Lovell; Colleen G. Canning; Hylton B. Menz; Kim Delbaere; Stephen J. Redmond; Mark Latt; Daina L. Sturnieks; Jasmine Menant; Stuart T. Smith; Stephen R. Lord (EMBC, 2014)