Running and knee health: Impact of load and movement patterns

Recent medical insights suggest that running itself is not a primary cause of knee osteoarthritis. Instead, joint damage is often driven by improper movement patterns, muscular deficiencies, and inadequate load management. Experts note that sudden increases in training intensity and continuing to exercise despite pain are significant risk factors.

Other contributors to knee issues include previous injuries such as ligament tears or meniscus damage, obesity, and congenital joint structures. While running involves high-impact forces—absorbing two to three times a person's body weight—the body is a dynamic system that adapts to load. Evidence indicates that runners may actually possess thicker cartilage and higher bone mineral density than non-runners.

To mitigate risks, specialists recommend the ‘four R’ principle: rest, muscle repair through protein, carbohydrate repletion, and rehydration. Maintaining movement is essential, as prolonged immobilization can lead to the deterioration of bone and cartilage.