The study looked at how grip strength is affected in people with hand osteoarthritis. The researchers wanted to see if painful joints from osteoarthritis were linked to weaker grip strength, and if this weaker grip strength was related to other health issues in this group. They found that in people with hand osteoarthritis, decreased grip strength is associated with painful joints and other health problems. This suggests that grip strength can reflect the impact of hand osteoarthritis on overall health in this population.