Reed Humphrey1, Daniel Malone2. 1. R. Humphrey, PT, PhD, School of Physical Therapy and Rehabilitation Science, University of Montana, 32 Campus Dr, Missoula, MT 59812 (USA). reed.humphrey@umontana.edu. 2. D. Malone, PT, PhD, CCS, Department of Physical Medicine and Rehabilitation, University of Colorado-Denver, Denver, Colorado.