Sore muscles after exercise typically peak 24 to 72 hours after a workout and resolve on their own within five to seven days. The fastest way to deal with them is a combination of light movement, adequate protein, and simple at-home therapies like heat or foam rolling. But the specific timing and approach matter, so here’s what actually works.
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. For years, the standard explanation was that tiny tears in muscle fibers trigger inflammation and pain. That’s part of the story, but more recent research has complicated it. Studies that varied the speed and range of stretching movements found that DOMS often occurred even in conditions where no measurable muscle damage happened. The soreness appears to be driven more by chemical signaling pathways in your nerves, specifically involving compounds that increase pain sensitivity in the tissue. Your muscles essentially become temporarily more sensitive to pressure, which is why even light touch or stairs can feel brutal after a tough leg day.
This is actually reassuring: soreness doesn’t necessarily mean you’ve damaged your muscles. It means your nervous system is responding to unfamiliar or intense effort. And it fades as your body adapts.
Move Lightly Instead of Resting Completely
The single most effective thing you can do for sore muscles is keep moving at a low intensity. Active recovery, meaning gentle exercise at about 50 to 60 percent of your maximum effort, helps reduce inflammation and muscle breakdown. That translates to a brisk walk, easy cycling, or a slow swim. You don’t need much: even six to ten minutes of light activity after your workout can make a noticeable difference in how you feel the next day.
On rest days when you’re already sore, the same principle applies. A 20-minute walk or some easy yoga will increase blood flow to the affected muscles without adding stress. Complete rest tends to leave you stiffer and more uncomfortable than gentle movement does.
Heat, Cold, and When to Use Each
For general post-exercise soreness, heat is your better option. A warm bath, heating pad, or hot shower relaxes tight muscle fibers and increases circulation to the area. Johns Hopkins Medicine recommends heat specifically for sore muscles after exercise.
Cold therapy (ice packs, cold baths) is more appropriate for acute injuries: a rolled ankle, a sudden sharp pain, visible swelling. If you’ve just tweaked something, ice in the first 48 hours helps limit inflammation. After that window, switch to heat. For routine DOMS without an injury, skip the ice and go straight for warmth.
Foam Rolling Works, and It Doesn’t Take Long
Foam rolling is one of the more well-studied recovery tools, and the good news is you don’t need to spend much time on it. Research from James Madison University compared three minutes of total foam rolling per muscle group to nine minutes and found no difference in outcomes. Three minutes was just as effective at reducing soreness without any loss of muscle function. That’s roughly one minute per area, covering the main regions of whatever muscle group is sore.
Roll slowly over the tender area, pausing on particularly tight spots for a few seconds before moving on. It won’t feel pleasant in the moment, but most people notice improved range of motion and reduced tenderness afterward.
Protein Matters More Than Timing
Your muscles need protein to repair and rebuild after exercise. The current consensus among sports nutrition experts is that you should aim for 1.6 to 2.2 grams of protein per kilogram of body weight per day. For a 150-pound person, that works out to roughly 110 to 150 grams daily. For a 180-pound person, it’s about 130 to 180 grams.
The timing of protein intake, whether you eat it immediately after a workout or spread it throughout the day, matters far less than hitting that total daily amount. So don’t stress about chugging a protein shake within 30 minutes of your last set. Focus instead on consistently eating enough protein across your meals, in whatever pattern you can maintain.
Tart Cherry Juice and Other Supplements
Tart cherry juice has become a popular recovery drink, and there’s reasonable evidence behind it. The compounds in tart cherries have natural anti-inflammatory properties. The typical effective dose is 240 to 480 milliliters (about 8 to 16 ounces) per day. Some people drink it before and after intense training days.
Magnesium is another supplement worth considering, particularly if you experience frequent muscle cramps alongside soreness. Magnesium citrate is the form with the most evidence supporting it. That said, most people who eat a varied diet with enough leafy greens, nuts, and whole grains get adequate magnesium without supplementing.
Pain Relievers Won’t Slow Your Progress
A common concern is that taking ibuprofen or other anti-inflammatory medications after exercise might interfere with muscle growth. This worry has circulated in fitness communities for years. However, a recent study published in the journal Physiology tested this directly, both in animals over six weeks and in humans after high-intensity jumping exercises. The researchers found that common anti-inflammatory medications did not reduce muscle size or interfere with the biological signals that drive muscle repair and growth.
So if you’re genuinely miserable, an occasional over-the-counter pain reliever won’t sabotage your gains. It’s not a daily strategy, but it’s a reasonable option when soreness is limiting your ability to function.
Warming Up Helps, but Stretching Beforehand Doesn’t
Static stretching before exercise, holding a stretch for 20 to 30 seconds, does not prevent soreness. Harvard Health Publishing notes that studies comparing injury and soreness rates between people who stretch before exercise and those who don’t have found little benefit. Stretching a cold, tight muscle can actually increase your risk of injury.
What does help is a brief active warm-up: five to ten minutes of gradually increasing movement that gets blood flowing to your major muscle groups and loosens your joints. Think light jogging, bodyweight squats, leg swings, or arm circles. This prepares your muscles for the work ahead and can reduce the severity of soreness afterward. Save your static stretching for after the workout, when your muscles are warm and more pliable.
When Soreness Signals Something Serious
Normal DOMS is uncomfortable but manageable, and it improves day by day. There’s a rare but serious condition called rhabdomyolysis where muscle tissue breaks down rapidly and releases its contents into the bloodstream, potentially damaging the kidneys. The key warning signs that separate rhabdomyolysis from ordinary soreness are:
- Dark urine: tea- or cola-colored, not just concentrated yellow
- Pain that’s disproportionate to what you’d expect from the workout
- Sudden weakness or fatigue: being unable to complete tasks you normally handle easily
You can’t diagnose rhabdomyolysis from symptoms alone, since dehydration and heat cramps can look similar. The only definitive test is a blood draw checking for a muscle protein called creatine kinase. If your urine turns dark after an unusually intense workout, especially one you weren’t conditioned for, get a blood test promptly. Early treatment makes a significant difference in outcomes.