Short- and Long-Term Effects of Synchrony in Physical Activity of Spouse and Patient with Knee Osteoarthritis

Physical activity is shaped by intimate partners. Daily physical activity concordance between partners may facilitate the other partner's activity level. Synchrony of physical activity may also benefit long-term relationships as daily benefits accumulate. Hypotheses will be tested using 22-day physical activity data tracked with accelerometers and 18-month follow-up surveys.