Most sore muscles recover on their own within three to five days, but several strategies can speed up the process and reduce discomfort along the way. The soreness you feel after a tough workout, often called delayed onset muscle soreness (DOMS), typically peaks around 24 to 48 hours after exercise. What helps most depends on timing and consistency rather than any single fix.
Why Your Muscles Get Sore
Soreness after exercise starts with microscopic damage to muscle fibers, particularly during movements where your muscles lengthen under load (lowering a weight, running downhill, or the descent portion of a squat). When these fibers are stretched forcibly while contracting, their internal structure tears at the smallest level, disrupting the connections between muscle cells and their surrounding membranes.
Your body responds to this damage with inflammation. White blood cells flood the area within the first 24 hours to clear out damaged tissue, while inflammatory signals produced by the muscle cells themselves can persist for up to five days. This cleanup process is what causes swelling, stiffness, and tenderness. It’s also what drives repair: as the initial wave of inflammation subsides, a second wave of immune cells arrives to rebuild the tissue stronger than before. So the soreness is uncomfortable, but it reflects a recovery process that’s working as intended.
Foam Rolling and Massage Guns
Both foam rollers and percussion massage guns improve the mechanical properties of sore muscles, reducing stiffness, muscle tone, and restoring elasticity faster than passive rest alone. In controlled studies, five minutes of foam rolling applied along the full length of a sore muscle was enough to produce measurable improvements. The key details: roll slowly (about 30 rolls per minute), cover the entire muscle, and apply pressure up to a level you’d rate about a 6 out of 10 on a pain scale.
Foam rolling appears to have a slight edge over massage guns for restoring muscle elasticity and flexibility, and it acutely improves range of motion without hurting performance. Massage guns, meanwhile, rapidly increase blood flow to the treated area, which supports the delivery of nutrients and removal of waste products. Both tools help your muscles feel less stiff, but neither one meaningfully reduces pain itself. Think of them as loosening agents rather than painkillers. Aim for 60 to 180 seconds per muscle group, adjusting based on how sensitive the area is.
Cold Water and Heat
Cold water immersion is one of the more studied recovery methods for soreness. The standard approach used in research is water between 10°C and 15°C (50°F to 59°F) for about 10 to 15 minutes, started immediately or within 20 minutes of finishing exercise. A Cochrane review found it does reduce soreness, though researchers haven’t pinpointed the ideal temperature, duration, or number of sessions. If you don’t have access to an ice bath, a cold shower targeting sore areas is a reasonable substitute, even if the evidence is less precise for that approach.
Heat therapy works differently. Warm water immersion (34°C to 40°C, or roughly 93°F to 104°F) increases blood flow and can help relax tight muscles. It’s generally more comfortable and better suited for soreness that’s already set in, rather than immediately post-exercise. Some people alternate between cold and warm applications, though research on contrast therapy is mixed.
Compression Garments
Wearing compression sleeves, tights, or socks after exercise has a moderate but consistent effect on recovery. A meta-analysis pooling data across multiple studies found that compression garments reduced soreness severity, helped preserve muscle strength and power, and lowered markers of muscle damage in the blood. The effect size was moderate across all of these measures. If you already own compression gear, wearing it for several hours after a hard session is a low-effort strategy worth using. It likely works by reducing swelling and supporting blood flow back to the heart.
Rest vs. Light Movement
You might expect that gentle movement, like an easy walk or light cycling, would speed recovery compared to sitting on the couch. The intuition makes sense: light activity boosts circulation, which could help clear inflammatory debris. But research comparing low-intensity exercise to complete rest after hard training sessions has found no meaningful difference in soreness, perceived recovery, or performance the next day. Active recovery isn’t harmful, and it can feel good in the moment, but it doesn’t appear to shorten the timeline. If you prefer to rest, that’s equally effective.
Tart Cherry Juice
Tart cherry juice is one of the few dietary interventions with solid evidence behind it, but the details matter. The benefits come almost entirely from drinking it for several days before the exercise that causes soreness, not after. Studies that started cherry juice on the day of exercise or afterward did not show consistent results.
The protocol that’s been replicated across multiple studies uses Montmorency tart cherry juice: two servings per day (each made from roughly 50 to 60 cherries) starting at least three to four days before a hard effort and continuing for a couple of days after. Runners who followed this regimen before a marathon reported soreness scores about half as high as the placebo group. For concentrated versions, two 30 ml servings per day has been the standard dose. If you have a race, a demanding hike, or a particularly brutal training block on the calendar, starting cherry juice several days ahead of time is the best way to use it.
Protein Timing Matters Less Than You Think
The idea that you need to consume protein within a specific window after exercise to reduce soreness doesn’t hold up well. A study comparing whey protein taken 10 minutes before exercise, 10 minutes after, or split across both times found no difference in soreness, range of motion, strength recovery, or blood markers of muscle damage. A single dose, regardless of timing, didn’t meaningfully speed recovery from muscle-damaging exercise. Total daily protein intake matters far more for long-term muscle repair than hitting a narrow post-workout window.
What About Magnesium?
Magnesium supplements are widely recommended online for muscle cramps and soreness, but clinical evidence doesn’t support this. A Cochrane review of 11 trials covering 735 participants found that magnesium supplementation, at doses ranging from 100 to 520 mg per day, did not significantly reduce cramp frequency, intensity, or duration compared to placebo. This held true across oral and intravenous forms. Gastrointestinal side effects, particularly diarrhea, affected 11% to 37% of people taking oral magnesium. If you’re deficient in magnesium, correcting that deficiency is worthwhile for overall health, but taking extra magnesium specifically to treat sore muscles is unlikely to help.
Pain Relievers: Effective but Complicated
Over-the-counter anti-inflammatory medications are commonly used for post-exercise soreness, and they do reduce pain. But the relationship between these drugs and muscle adaptation is more complex than it appears. Research has shown that standard doses can suppress muscle protein synthesis in the hours after resistance exercise, inhibit the activity of cells responsible for muscle repair for up to eight days, and blunt signaling pathways involved in building new tissue. One study found that 1200 mg per day of ibuprofen over eight weeks reduced both strength and muscle size gains compared to a control group.
Interestingly, a longer study in trained men found that the same class of medication actually increased muscle size gains over 84 days of training, though it didn’t improve strength. The picture is genuinely mixed, and the effects likely depend on training status, dosage, and duration of use. Occasional use for severe soreness is reasonable, but relying on these medications regularly during a training program may interfere with the adaptations you’re working toward.
Red Flags That Aren’t Normal Soreness
Typical muscle soreness is diffuse, peaks a day or two after exercise, and gradually fades. Rhabdomyolysis, a serious condition where muscle fibers break down and release their contents into the bloodstream, can look similar at first but progresses differently. The CDC identifies three key warning signs: muscle pain that’s more severe than you’d expect from the workout, dark tea- or cola-colored urine, and unusual weakness or fatigue that prevents you from completing tasks you could normally handle. These symptoms can overlap with dehydration or heat illness, and the only definitive way to diagnose rhabdomyolysis is through a blood test. If your urine turns dark after an unusually intense or unfamiliar workout, that warrants prompt medical attention.