1. New England Geriatric Education and Clinical Center, Veterans Affairs Boston Healthcare System, Boston, MA, USA
2. Fit2Perform Williston, VT, USA
3. U.S. Ski & Snowboard, Burlington, VT, USA
4. Renewal Physical Therapy, Colchester, VT, USA
5. Dee Physical Therapy, South Burlington, VT, USA
6. Department of Rehabilitation and Movement Science, University of Vermont, Burlington, VT, USA