Osteoarthritis (OA) is the most common form of arthritis, affecting millions of people and causing pain, stiffness, and reduced joint motion. For runners diagnosed with OA, the instinctive response is often to stop running entirely. But should they?
Does Running Worsen OA?
A 2018 study by Grace H. Lo et al. suggests that running does not necessarily worsen or increase symptoms of osteoarthritis. While the study acknowledged individual variability — some people with OA do experience symptom flares following runs — the evidence does not support a blanket prohibition on running. OA can also affect the foot and ankle, including the first toe joint, which may alter push-off mechanics and gait. These presentations need individual assessment.
Why Does OA Affect Some Runners More Than Others?
Several factors contribute to OA flares in runners:
- Repetitive joint loading without adequate recovery
- Running on hard surfaces (concrete, asphalt)
- Inadequate or worn footwear
- Poor running biomechanics — particularly overstriding and heel striking
- Insufficient strength in the muscles that support the joint
Running Can Actually Help
When approached mindfully, running supports OA management rather than worsening it. Benefits include cartilage compression that facilitates nutrient exchange, improved circulation of synovial fluid, and enhanced muscle strength and bone density around the joint. The key variable is not whether to run — it is how to run.
Key Guidelines for Running Safely with OA
- Warm up properly: Begin with a gentle walk and thorough stretching of the quads, calves, IT band, and hamstrings
- Maintain good form: Keep your head high, relax your jaw and shoulders, avoid forward lean, shorten your stride
- Land midfoot: Reduces peak joint impact compared to heel striking
- Wear appropriate footwear: Shoes with adequate cushioning and support, or orthotics where indicated
- Choose softer surfaces: Grass, trails, or a treadmill over concrete
- Strengthen supporting muscles: Core, glutes, and quadriceps are the primary protectors of the knee joint
- Cool down: Never skip the cooldown — it reduces post-run joint loading and aids recovery
When Running Alone Isn't Enough
OA management is rarely about a single strategy. The most effective approaches combine:
- Physiotherapy — targeted strengthening, gait retraining, and manual therapy
- Weight management — reducing load on the joint is one of the highest-impact interventions available
- Medications where appropriate — NSAIDs, topical anti-inflammatories, or corticosteroid injections for flares
- Lifestyle modification — activity pacing, load management, sleep optimisation
Surgery (osteotomy or joint replacement) is reserved for advanced OA with significant structural damage, when all conservative options have been exhausted.
"With the right approach, a supportive team, and consistent effort — running and osteoarthritis can coexist. Your stride doesn't have to end because of a diagnosis."