In January 2017 researchers from Norway published their review of the scientific literature to assess the effect of exercise in people with hand osteoarthritis. A total of seven studies were included in the review. It was noted that the types of exercises varied across the studies. Results showed that exercise had a small beneficial effect on hand pain, function and finger joint stiffness. However, it should be noted that the evidence was of a low quality.
Østerås N et al. Exercise for hand osteoarthritis. Cochrane Database Syst Rev. 2017 Jan 31;1:CD010388.