Osteoarthritis has a logical link to obesity: The more weight that's on a joint, the more stressed the joint becomes, and the more likely it will wear down and be damaged. "Weight plays an important role in joint stress, so when people are very overweight, it puts stress on their joints, especially their weight-bearing joints, like the knees and the hips".
Every 450 grams of excess weight exerts about 1.8 kg of extra pressure on the knees. So a person who is 4.5 kg overweight has 18 kg of extra pressure on his knees.
How Blizz Therapy: Catalyze inner healing of joints
obesity , overweight , Osteoarthritis