How Long Does Muscle Soreness Last?

Quick Answer

24–72 hours is the typical duration of delayed onset muscle soreness (DOMS). Soreness usually begins 12–24 hours after exercise, peaks at 24–48 hours, and resolves by 72 hours. More intense exercise – especially eccentric movements like downhill running or lowering heavy weights – can extend soreness to 4–5 days.

DOMS Timeline

Time After Exercise	What to Expect
0–12 hours	Muscles feel normal or slightly fatigued
12–24 hours	Soreness begins; stiffness and mild tenderness develop
24–48 hours	Peak soreness – muscles feel tight, tender, and weak
48–72 hours	Gradual improvement; soreness fading
72–96 hours	Most soreness gone; full strength returning
5+ days	Should be fully resolved – see a doctor if pain persists

What Causes DOMS?

DOMS is caused by microscopic damage to muscle fibers during exercise, particularly during eccentric contractions (when muscles lengthen under load). This triggers an inflammatory response as your body repairs the damaged fibers, making them stronger in the process.

Common DOMS triggers:

• Starting a new exercise program after a period of inactivity
• Increasing intensity or volume beyond what your muscles are accustomed to
• Eccentric exercises – lowering weights slowly, downhill running, box jumps, plyometrics
• Unaccustomed movements – new exercises your muscles have not adapted to

DOMS is not caused by lactic acid buildup, which clears within minutes to hours after exercise.

DOMS vs. Injury: How to Tell the Difference

Feature	DOMS	Injury
Onset	12–24 hours after exercise	During or immediately after exercise
Type of pain	Dull, achy, tender to touch	Sharp, stabbing, or burning
Location	Spread across the whole muscle	Localized to a specific spot
Duration	Resolves within 3–5 days	Persists beyond 7 days
Swelling	Minimal	Visible swelling or bruising
Movement	Stiff but improves with gentle movement	Worsens with movement or causes limping
Strength	Slightly reduced, returns quickly	Significant weakness or inability to use muscle

How to Speed Up Recovery

Active Recovery

Light movement increases blood flow and helps clear metabolic waste products. Try walking, easy cycling, swimming, or gentle yoga. Studies show active recovery can reduce DOMS severity by 10–20%.

Other Recovery Methods

• Massage or foam rolling: Research suggests foam rolling for 10–20 minutes can reduce DOMS tenderness by up to 40%
• Cold water immersion: 10–15 minutes in cold water (50–59°F / 10–15°C) after intense exercise may reduce peak soreness
• Adequate sleep: Growth hormone is released during deep sleep, which is critical for muscle repair. Aim for 7–9 hours
• Protein intake: Consuming 20–40g of protein within 2 hours post-exercise supports muscle repair
• Hydration: Dehydration worsens inflammation and delays recovery

What Doesn't Help Much

• Static stretching: Research shows minimal benefit for DOMS prevention or treatment
• NSAIDs (ibuprofen, naproxen): May reduce pain but can interfere with the muscle-rebuilding process if used regularly

How to Prevent Excessive Soreness

• Progress gradually: Increase training volume by no more than 10% per week
• Warm up properly before exercise to prepare muscles for load
• Stay consistent: Regular training adapts your muscles, dramatically reducing DOMS over time (the "repeated bout effect")
• Include eccentric training regularly so your muscles adapt to lengthening under load

When to See a Doctor

Seek medical attention if:

• Soreness lasts longer than 5–7 days
• You experience dark-colored urine after intense exercise (possible rhabdomyolysis)
• Pain is sharp, sudden, or localized to a single point
• There is significant swelling or bruising
• You cannot bear weight or use the affected limb normally