A home-based pedometer-driven walking program to increase physical activity in older adults with osteoarthritis of the knee: a preliminary study.

Objectives: To determine whether a home-based pedometer-driven walking program with arthritis self-management education (Walk +) would increase physical activity, muscle strength, and functional performance in older adults with osteoarthritis (OA) of the knee as opposed to arthritis self-management education alone (EDU).

Design: A randomized two-by-three (group-by-time) design with participants assigned to Walk + (n = 17, mean age +/- standard deviation = 69.6 +/- 6.