Long-distance runners are often warned that they are wearing out their joints, but a new study found that running mileage, frequency, and pace were not associated with an increased risk of osteoarthritis. AAOS2023
In this new study, researchers surveyed 3804 runners who participated in the 2019 or 2021 Chicago Marathon about their running history, average mileage per week, and average running pace. The survey also asked about known risk factors for osteoarthritis, including BMI, family history of arthritis, and past knee and hip injuries that prevented running.
Researchers found that there was no association between the risk of osteoarthritis and weekly mileage, years spent running, number of marathons completed, or running pace. Respondents who had undergone knee or hip surgery had the highest risk of osteoarthritis , followed by those with a history of knee or hip injuries that prevented running . Other identified risk factors were family history of arthritis , BMI , and older age .
Still, 24.2% of runners reported that their physician had advised them to reduce their mileage or stop running altogether. Most runners said they planned to run another marathon. Still, he emphasized that more research is necessary to understand whether running contributes to the risk of developing osteoarthritis. The participants in the study were current marathoners, he noted, so it is likely they have healthy joints that can tolerate running longer distances."If there is a subset of people who have joints that are negatively affected by running, they wouldn't likely be registering for a marathon," he said in an email interview.
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