1kg of weight loss decreases knee joint load by 8 times per step.
or every 10% of loss in overweight people with OA symptoms /function improve by 50%
Ref : Messier IDEA trial 2005 Arthritis Rheum. 2005 Jul;52(7):2026-32.
Weight loss reduces knee-joint loads in overweight and obese older adults with knee osteoarthritis.