Most muscle soreness after exercise peaks between 24 and 72 hours, then fades within five to seven days on its own. The good news: several strategies can meaningfully reduce how intense that soreness feels and how long it lingers. Here’s what works, what doesn’t, and why your muscles hurt in the first place.
Why Your Muscles Get Sore
The soreness you feel a day or two after a hard workout is called delayed onset muscle soreness, or DOMS. It’s not caused by lactic acid buildup, which is a persistent myth. The real trigger is microscopic structural damage to muscle fibers, particularly during movements where your muscles lengthen under load (lowering a weight, running downhill, or the “down” phase of a squat). This mechanical stress disrupts the internal architecture of individual muscle cells.
Your body responds to that damage with inflammation. Inflammatory compounds sensitize the nerve endings in and around the muscle, lowering their activation threshold so that even normal movements like walking downstairs or lifting your arms can register as painful. This inflammatory process is also part of how muscles repair and grow stronger, which is why completely suppressing it isn’t always the goal.
Foam Rolling
Foam rolling is one of the better-studied tools for reducing soreness. In research on participants who did heavy squats, 20 minutes of foam rolling immediately after exercise and again at 24 and 48 hours substantially improved muscle tenderness. The effect size was moderate to large. Just three sessions totaling about 60 minutes meaningfully enhanced recovery and reduced pain.
The technique is straightforward: roll each muscle group for about 45 seconds, rest 15 seconds, then repeat. Cover the quads, hamstrings, glutes, and calves if your lower body is sore, or focus on whatever area you trained. A high-density roller works best. The pressure doesn’t need to be agonizing. Firm and steady is enough.
Cold Water Immersion
Cold baths and ice baths remain popular for a reason. Immersing sore muscles in cold water (typically 8 to 15°C, or roughly 46 to 59°F) for 3 to 10 minutes can reduce swelling and blunt the pain signals from inflamed tissue. If you don’t have a cold plunge setup, a bathtub with cold water and a bag of ice works fine. Start with shorter durations and work up as you get used to the sensation.
Active Recovery
Light movement on a rest day can feel counterintuitive when you’re stiff and sore, but low-intensity exercise increases blood flow to damaged muscles. That improved circulation helps deliver oxygen and nutrients for repair while clearing metabolic byproducts more efficiently. A 20- to 30-minute walk, an easy bike ride, or a gentle swim all qualify. The key is keeping the intensity genuinely low, well below the point where you’re breathing hard.
Magnesium
Magnesium plays a direct role in muscle function and recovery. A systematic review of supplementation studies found that magnesium reduced muscle soreness ratings at 24, 36, and 48 hours after exercise, improved feelings of recovery, and appeared to have a protective effect against muscle damage. The general recommendation for adults is 360 to 420 mg daily, and people who exercise intensely may need 10 to 20% more than that.
You can get magnesium through foods like spinach, pumpkin seeds, almonds, and dark chocolate, or through a supplement taken about two hours before training. Consistency matters more than any single dose, since magnesium levels build over time.
Tart Cherry Juice
Tart cherry juice contains plant compounds with natural anti-inflammatory properties. In one study, eating about 280 grams of cherries daily for 28 days reduced a key marker of inflammation (C-reactive protein) by 25%. The active compounds in tart cherry concentrate reach peak levels in the blood within one to two hours of drinking it.
Most studies use either a concentrate (about 30 ml twice daily) or a fresh-frozen juice with at least 600 mg of total plant phenolics. The optimal dose hasn’t been nailed down precisely, but the pattern across studies is consistent: regular consumption around training periods reduces soreness and markers of muscle damage.
Stretching Doesn’t Help Much
This one surprises a lot of people. Multiple systematic reviews and meta-analyses, going back over two decades, have consistently found that stretching before or after exercise does not reduce DOMS. Static stretching, passive stretching, and even more advanced techniques like PNF stretching all showed no meaningful effect on soreness at 24, 48, or 72 hours compared to simply resting. Stretching has other benefits for flexibility, but easing next-day soreness isn’t one of them.
Over-the-Counter Pain Relievers
Anti-inflammatory medications like ibuprofen can take the edge off acute soreness, but they’re worth understanding before you reach for the bottle. At high doses, ibuprofen has been shown to inhibit muscle protein synthesis after resistance exercise, which raised concerns about whether it could blunt the gains you’re training for. However, a study testing a moderate daily dose (400 mg) found no negative effect on muscle growth or strength over a training period. It also found no difference in soreness ratings compared to a placebo, which suggests the pain relief may be modest at best for this type of discomfort.
If you do use an anti-inflammatory, treat it as a short-term tool for particularly rough days rather than a daily habit. The inflammation driving your soreness is also driving the repair process.
Prevention: Ease Into New Exercises
The single most effective way to reduce soreness is to prevent the worst of it. DOMS is most severe when you perform exercises your body isn’t accustomed to, or when you jump significantly in intensity or duration. Ramping up gradually gives your muscles time to adapt. After the first exposure to a new movement, subsequent bouts cause progressively less damage, a phenomenon known as the repeated bout effect. This is why your first leg day in months leaves you hobbling but your fourth week feels manageable.
When Soreness Signals Something Serious
Normal soreness is diffuse, affects the muscles you worked, and steadily improves after the 48- to 72-hour peak. Rhabdomyolysis, a condition where severely damaged muscle tissue breaks down and releases its contents into the bloodstream, is rare but worth knowing about. The warning signs include dark tea-colored or reddish urine, severe muscle pain or weakness that feels disproportionate to your workout, significant swelling in the affected area, nausea, confusion, or fever. If you notice dark urine after an unusually intense workout, that warrants urgent medical attention, since the muscle proteins flooding the bloodstream can damage the kidneys.