11/13/2020
Hell yeah it can! There is this old - and incorrect - idea that exercise like running causes arthritis. Not exactly true.
Osteoarthritis is a complex condition that has multiple foundational causes, and though one of them can be related to movement, proper exercise is not one. The truth about this relationship is that poor biomechanics and activities that result in overuse and improper loading of joints is what can contribute to the development of arthritis. Joints are meant to move. In fact, that’s how cartilage breathes.
Cartilage in your joints does not have any of it’s own blood flow. Instead, it acts like a sponge in the joint; when it’s squeezed, fluid comes out into the joint cavity, and when the pressure is released, fluid gets sucked back in. The fluid, synovial fluid, is oxygenated and “cleaned” by blood flow to the joint capsule (surrounding ligaments and soft tissue).
So, as the joint moves, oxygen, carbon dioxide, and nutrients get flushed in and out of the cartilage, allowing it to literally breathe. What does this mean? Movement and exercise actually protect joints from arthritis! The problems arise when joints are loose or weak, or are stuck in the same position for too long (like when you sit at work for 9 hours straight and don’t move your legs), and the cartilage gets suffocated or overused in a specific spot. This, along with a whole host of other factors (total body inflammation, percent body fat, underlying inflammatory conditions, gut dysbiosis, etc.), can lead to arthritis. But, even if you have arthritis, the evidence shows the regular exercise can help slow progression and even reverse it!
So, no, running doesn’t cause arthritis by itself, and yes, exercise can help with arthritis. Get out and run - just make sure your feet, ankles, knees and hips are strong and supported, and your running form is 👌🏽