Inclusion Criteria:  women, age 50 to 70 years  Exclusion Criteria:  participation in yoga twice per week or more in the past three months any recent upper extremity (UE), neck or back injury, or other painful joint problem that significantly limits day to day activities distal radius fracture in the past two years, any fracture in the past year, or a history of multiple fractures of the wrist or forearm any history of UE neurological problems (i.e. Stroke, Multiple Sclerosis, Parkinson's disease, reflex neuropathy) any cardio-vascular problems that would contradict maximum effort strength assessment presence of a joint replacement (i.e. hip or knee) unable to safely ambulate independently (with or without a walking aid) in the community.