Muscle soreness after exercise: what helps and when should you be concerned?

Feeling stiff after your first strength session in months or after a harder-than-usual run is common. But more soreness does not automatically mean a more effective workout, and trying to eliminate every uncomfortable feeling is not a realistic recovery strategy.

The more useful questions are: is the pain consistent with normal muscle soreness, can you keep moving safely and which recovery methods are actually worth your time?

What is muscle soreness after exercise?

Delayed-onset muscle soreness (=DOMS) is the tenderness, stiffness or aching that can develop after unfamiliar or strenuous exercise. It is particularly common after exercises with a strong eccentric component, where a muscle produces force while lengthening — for example lowering a weight, running downhill or performing the downward phase of a squat.

DOMS is not caused by lactic acid remaining in the muscles. It is associated with the response of muscle and surrounding tissue to unfamiliar mechanical stress.

These are known as eccentric muscle actions. A high volume of eccentric exercise is strongly associated with temporary soreness and a short-term reduction in muscle function, especially when the movement or training load is new to you.

DOMS can make a muscle feel:

• tender when touched;

• stiff when you start moving;

• weaker than usual;

• uncomfortable when stretched or contracted;

• less mobile for a few days.

The processes behind DOMS are complex, but they are linked to the response of muscle and surrounding tissue to an unfamiliar load. It is not caused by lactic acid remaining trapped in the muscles. Lactate levels return towards normal long before delayed soreness becomes strongest.

When does muscle soreness start and how long does it last?

You may not feel much during the workout itself, but DOMS tends to sneak up on you later. It often becomes noticeable the next day, can feel strongest 24 to 72 hours after exercise, and then gradually eases as your muscles recover.

The duration varies according to the exercise, training load, muscle group and your experience with the movement. Pain that begins suddenly during one repetition, sprint or landing may be more consistent with an acute strain or another injury than with delayed muscle soreness.

Is muscle soreness a sign of a good workout?

Not necessarily.

Soreness mainly tells you that your muscles experienced a load they were not fully accustomed to. That may happen because you trained harder, used a new exercise, increased your range of motion or returned after a break.

Once your body becomes accustomed to the same activity, you may experience much less soreness even though the training is still effective. No muscle soreness therefore does not mean you failed to train hard enough.

Progress is better measured through indicators such as:

• improved strength or endurance;

• more controlled technique;

• a greater but manageable training load;

• better consistency;

• improved performance in your sport;

• how well you recover between sessions.

Deliberately chasing extreme muscle soreness can make everyday movement difficult and reduce the quality of your next training session.

Can you exercise with sore muscles?

That depends on the intensity of the soreness and the type of training you have planned. Light physical activity may temporarily reduce stiffness and make the muscles feel more comfortable. That does not mean the muscle has instantly recovered.

Use how you move, rather than soreness alone, as your guide.

A walk, easy cycle, relaxed swim or gentle mobility session is usually more appropriate than another maximum-effort workout for the same muscles. Do not use a warm-up, massage gun or pain relief simply to suppress pain so that you can complete a session your body is not ready for.

What actually helps with muscle soreness?

No single method completely prevents or immediately removes DOMS. Recovery is usually a combination of time, sensible movement and basic habits.

 

The most useful approach is usually a combination of light movement, adequate rest, sleep, food and fluids. Recovery tools such as massage, a massage gun, compression, heat or cold can be added based on what feels comfortable and useful for you.

1. Light movement

Complete inactivity can make stiff muscles feel even less comfortable. Gentle movement helps you explore your available range of motion without adding another heavy training stimulus.

Suitable options include:

• walking;

• easy cycling;

• relaxed swimming;

• gentle bodyweight movement;

• controlled mobility exercises.

Keep the intensity low. Active recovery should make movement feel easier, not create more soreness later in the day.

2. Sleep and sufficient rest

Sleep is one of the foundations of physical recovery. It gives your body time to regulate the processes involved in tissue repair, energy restoration and adaptation to training. A recovery tool may make you feel more relaxed, but it does not compensate for repeatedly sleeping too little.

3. Food and fluids

Your body needs sufficient energy and nutrients after exercise. Protein supplies amino acids that support muscle repair, while carbohydrates help restore energy reserves used during training. Fluids are important for replacing what you lose through sweating.

You do not need a complicated recovery meal. A normal meal or snack containing a source of protein, carbohydrates and fluids is a practical starting point.

Examples include:

• yoghurt with fruit and oats;

• eggs with bread;

• rice or potatoes with vegetables and a protein source;

• a sandwich with chicken, cheese, tofu or hummus;

• milk or a plant-based alternative with fruit.

Drinking more water than you need will not flush soreness out of your muscles. The goal is to restore a normal fluid balance, particularly after long, hot or sweaty sessions.

4. Heat or cold

Both heat and cold may reduce perceived soreness, but neither is essential after every workout. The best choice depends on the context and your personal preference.

Heat may feel useful when:

• your muscles feel stiff;

• warmth helps you relax;

• you want to move more comfortably.

Cold may feel useful when:

• the area feels particularly sore after a demanding session;

• you prefer a cooling or numbing sensation;

• temporary symptom relief is the main goal.

Avoid extreme temperatures and prolonged direct contact with the skin. Heat or cold should make you feel more comfortable, not cause pain, skin damage or loss of sensation.

5. Massage

Massage may help reduce the perceived intensity of DOMS, particularly during the first few days after strenuous exercise. Systematic reviews have found improvements in soreness, although the size of the effect varies between studies.

Massage should be used for comfort and recovery, not as a way to “work through” an acute injury. More pressure is not automatically more effective.

6. A massage gun

A massage gun can provide a convenient form of self-massage. Research suggests that percussive therapy may support short-term range of motion and may reduce perceived stiffness or soreness in some situations. However, massage guns should be viewed as a recovery aid rather than a proven way to accelerate every aspect of muscle repair.

Use the device on healthy soft tissue only and avoid bones, joints, the spine, bruised areas and acute injuries.

When using one on sore muscles:

• start on a low setting;

• use it only on soft muscle tissue;

• keep the device moving;

• avoid bones, joints and the spine;

• do not press into a sharply painful point;

• stop if you feel numbness, tingling or increasing pain.

Do not use a massage gun on an acute injury, major swelling, bruised tissue or an area you cannot feel properly.

How to use a massage gun before or after exercise

7. Compression

Compression garments and compression-based recovery methods may modestly reduce soreness or improve some recovery measures after demanding exercise. Results vary between studies, so compression is best viewed as an optional recovery tool rather than a necessity.

8. Gentle mobility and stretching

Gentle stretching may feel pleasant and can help you explore your range of motion. However, stretching after a workout does not reliably prevent or substantially reduce DOMS. Stretch because it feels comfortable or supports mobility, not because you expect it to remove all soreness.

9. An acupressure mat

An acupressure mat can create a deliberate moment of rest after training. The pressure sensation may help some people relax, but it should not be presented as a direct treatment for DOMS or an injury. Use it as part of a calm evening routine rather than as a substitute for movement, sleep or professional advice.

Acupressure mat: benefits, disadvantages and correct use

What is often overstated?

Recovery advice is full of confident claims. Some are based on a small possible effect that is presented as a guaranteed result. Others are simply repeated because they sound logical.

"You need to flush out lactic acid"

Lactic acid is not the cause of soreness that develops one or two days after training. You do not need a special detox, massage or drink to remove it.

"Stretching prevents muscle soreness"

Stretching can be useful for mobility, but it is not a reliable way to prevent DOMS.

"The harder the massage, the faster the recovery"

Firm pressure may feel good, but pain is not evidence that a massage is working more effectively. Aggressive pressure can make already sensitive tissue feel worse.

"One supplement solves muscle soreness"

No supplement replaces a balanced diet, sufficient energy, sleep and appropriate training progression.

"You should always rest until you feel nothing"

With mild DOMS, complete rest is not usually necessary. Light movement may feel better. Heavy training of a muscle that is still significantly weaker or affecting your technique is a different matter.

A practical recovery plan for the first 48 hours

This is not a rigid protocol. Use it as a simple framework and adapt it to the type of exercise and how your body responds.

The most important preventive measure is not a specific device. It is progressing training gradually. New exercises, long breaks and sudden increases in volume or intensity are common triggers for more severe soreness.

When is muscle pain not normal?

DOMS is usually a broad, dull or tender feeling in muscles that were recently trained. It should gradually improve.

Ask for medical or professional advice when:

• pain is sharp, sudden or clearly located in one small area;

• you felt or heard a pop during the activity;

• there is substantial swelling, bruising, redness or warmth;

• you cannot use the limb normally or put weight on it;

• you have persistent numbness or tingling;

• the pain continues to worsen instead of improving;

• your symptoms interfere heavily with normal daily activities;

• the soreness persists much longer than expected.

Frequently asked questions about muscle soreness after exercise

How long does muscle soreness after exercise last?

Normal DOMS usually settles gradually within several days. The exact duration depends on the activity, intensity and how accustomed you are to the movement. Pain that remains severe, worsens or does not improve after about a week should not automatically be dismissed as ordinary soreness.

Why am I more sore two days after exercise?

DOMS develops with a delay. The response of the muscles and surrounding tissue continues after the workout, which is why soreness can feel more noticeable one or two days later than it did immediately afterwards.

Can I train again after 48 hours?

Possibly. The number of hours is less important than how you feel and move. Mild soreness with normal technique may allow for a lighter session. Severe soreness, reduced strength or altered movement suggests that the affected muscles need more time or a less demanding form of activity.

Is extreme muscle soreness healthy?

Extreme soreness is not a requirement for progress. If it makes normal movement difficult, significantly reduces strength or keeps worsening, the training load may have been too high. Severe symptoms can also be difficult to distinguish from an injury without proper assessment.

Does a massage gun help with muscle soreness?

A massage gun may make sore muscles feel more comfortable temporarily and may support short-term mobility. It does not repair an injury or replace sleep, nutrition and suitable training progression. Use a low or moderate setting and stay on healthy muscle tissue.

Does having no muscle soreness mean the workout did not work?

No. Your muscles adapt to repeated movements and training loads. As you become more experienced, the same workout may cause much less soreness even though it still contributes to your training goals.

Can you prevent muscle soreness completely?

Probably not, especially when introducing a new activity. You can reduce the chance of extreme soreness by building volume and intensity gradually, avoiding sudden jumps in training load and giving your body time to adapt.

Recover without overcomplicating it

Muscle soreness does not need an elaborate recovery routine. Begin with the basics: manageable training progression, light movement, sufficient food and fluids, and good sleep.

Massage guns, heat, cold, compression and an acupressure mat can add comfort or help you create a consistent recovery moment. They work best as additions to the basics, not as replacements for them.

Read next:

• How to use a massage gun before or after exercise

• How to choose the right massage gun

• Acupressure mat: benefits, disadvantages and correct use

• Muscle recovery after exercise: your routine for the first 24 hours

Sources and further reading

• Massage Alleviates Delayed Onset Muscle Soreness after Strenuous Exercise: A Systematic Review and Meta-Analysis — evidence on massage and DOMS.
• Heat and cold therapy reduce pain in patients with delayed onset muscle soreness: A systematic review and meta-analysis of 32 randomized controlled trials — evidence on heat and cold.
• The Effectiveness of Post-exercise Stretching in Short-Term and Delayed Recovery... — systematic review and meta-analysis on stretching and DOMS.
• The Effects of Massage Guns on Performance and Recovery: A Systematic Review — current evidence on percussive massage devices.
• Compression Garments and Recovery from Exercise: A Meta-Analysis — evidence on compression and recovery.
• CDC — Signs and Symptoms of Rhabdomyolysis — medical warning signs including muscle pain, weakness and dark urine