A 12-month controlled trial randomized 189 individuals to spend 70–90 minutes performing 11 exercises or 20–30 minutes performing 5 exercises for 3 months. Outcomes were measured biweekly for the intervention period and again at 6 and 12 months. The two approaches were similar, except for one outcome. In the Knee Injury and Osteoarthritis Outcome Score for function in sports and recreation, high-dose therapy was superior.