Pain catastrophizing affects stair climbing ability in individuals with knee osteoarthritis.

Pain catastrophizing in knee OA patients showed significantly decreased stair climbing ability. There is a need to consider the effect of pain catastrophizing in rehabilitation of knee OA patients with decreased ability to climb stairs.Key Points• Pain catastrophizing in knee OA patients showed significantly decreased stair climbing ability.• Ability to stand from a seated position and walk were not affected by pain catastrophizing.• There is a need to consider the effect of pain catastrophizing in rehabilitation of knee OA patients with decreased ability to climb stairs.