What is post-run soreness?
Post-run soreness is muscle discomfort that develops after running or other exercise. It commonly affects the calves, hamstrings, quadriceps, and gluteal muscles. Mild post-run soreness often reflects normal training load and recovery. However, stronger or more localised pain can suggest a common muscle injury rather than simple exercise soreness.
What is DOMS?
Delayed onset muscle soreness is an exercise-related muscle response that usually develops after unaccustomed or higher-load exercise. DOMS does not usually begin straight away. Instead, it tends to appear 24 to 72 hours after exercise and commonly peaks around 48 hours.
DOMS can cause soreness, stiffness, tenderness, reduced strength, and a temporary drop in movement quality. It often settles over several days as the body adapts to the workload. That adaptation partly explains why the same session often causes less soreness next time.
What does a muscle injury feel like after running?
A muscle injury usually behaves differently from DOMS. Pain often starts during the run or soon after. Some runners feel a pull, a sharp twinge, or a sudden pain that forces them to slow down or stop. A more significant injury may also cause swelling, bruising, weakness, or pain with walking.
If you suspect a strain, early management matters. This is where guidance on acute soft tissue injury treatment and follow-up sports physiotherapy can be useful.
How do you tell the difference between DOMS and muscle injury?
The main clue is when the pain started. DOMS usually comes on later. Muscle injury usually starts during the run or immediately afterwards. DOMS also tends to feel stiff and sore when you first move, then ease as the muscle warms up. By contrast, a muscle strain is more likely to stay painful when you load, contract, or stretch the injured area.
A physiotherapist can assess the pattern, test the muscle, and work out whether your post-run soreness is expected training soreness, a muscle strain, or another related problem such as muscle cramps.
When should you worry about post-run soreness?
You should be more cautious when post-run soreness starts during the run, keeps getting worse, causes limping, or comes with swelling, bruising, or clear weakness. That pattern is less typical of DOMS and more concerning for muscle injury or another tissue problem.
If you would like a broader overview of physiotherapy assessment and treatment, Healthdirect provides a useful summary of physiotherapy.
What should you do for post-run soreness?
If the soreness seems like DOMS, reduce training intensity for a few days, keep moving gently, and avoid overly aggressive stretching or deep massage if these increase pain. Light recovery exercise, sensible load management, sleep, hydration, and gradual training progression are often the most practical first steps.
If you suspect a true muscle injury, stop pushing through it. Early assessment may help confirm the diagnosis, guide your loading, and reduce unnecessary time away from running. In some cases, a running analysis can also help identify technique or loading factors that contributed.
FAQs about post-run soreness
Is post-run soreness normal?
Yes, mild post-run soreness is often normal, especially after a harder session or a sudden training increase. It is usually less concerning when it appears later, feels general rather than sharply localised, and gradually improves over a few days.
How long should post-run soreness last?
DOMS often peaks 24 to 72 hours after exercise and then settles over the next few days. If your soreness is still severe, worsening, or clearly limiting your walking or running after several days, it is worth getting checked.
Should you run with post-run soreness?
That depends on the pattern. Mild DOMS may allow light training or recovery running if symptoms ease as you warm up. However, you should avoid running through sharp pain, limping, weakness, or symptoms that worsen with each stride.
Can a physio help with post-run soreness?
Yes. A physiotherapist can work out whether your symptoms reflect normal recovery, a muscle strain, or another running-related problem. Treatment may include load advice, hands-on care, exercise progression, and return-to-running guidance.
What to do next
If your soreness is mild, delayed, and settling, modify your training and monitor it closely. If your pain started during the run, is localised, or is affecting your gait, book an assessment sooner rather than later.
PhysioWorks can assess the source of your post-run soreness, explain what is happening, and guide the next stage of your recovery so you can return to running with more confidence.
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