Calf Strain
A strain or minor muscle injury affecting the calf muscles, often the superficial gastrocnemius muscle. The injury commonly occurs during explosive movements such as sprinting, acceleration, jumping, or sudden changes of direction.
- •Mild pain or tenderness in the calf.
- •Pain may occur during or after activity.
- •Mild discomfort during calf raises or when pushing off with the foot.
- •Walking is usually normal.
- •No or minimal swelling.
- •Little or no loss of strength.
- •Stop activities that cause pain.
- •Reduce calf loading from sprinting, jumping and explosive push-offs.
- •Gentle movement within a pain-free or nearly pain-free range is beneficial.
- •Avoid aggressive stretching and deep massage during the acute phase.
- •Pain relief can be used if needed.
Begin with pain-controlled movement and light activation of the calf muscles.
Progress to calf raises with gradually increasing load.
Gradually train both straight-knee and bent-knee positions to load the calf muscles in different ways.
Gradually increase loading through walking and running.
Progress to faster running and acceleration.
Add jumping and football-specific movements before returning to full training.
- Pain-free during daily activities.
- Full or nearly full ankle range of motion.
- Able to perform calf raises without pain.
- Able to fully load the calf without pain.
- Able to run without pain.
- Able to accelerate and decelerate without pain.
- Able to jump and land without pain.
- Able to perform football-specific activities.
- Able to complete full training without worsening during or after training.
The information in the Injury Center is for educational purposes and does not replace professional medical advice. Always consult a qualified healthcare professional for diagnosis and treatment.
Calf Strain
A strain or minor muscle injury affecting the calf muscles, often the superficial gastrocnemius muscle. The injury commonly occurs during explosive movements such as sprinting, acceleration, jumping, or sudden changes of direction.
Mild — Cirka 1–3 veckor
Symptoms
- Mild pain or tenderness in the calf.
- Pain may occur during or after activity.
- Mild discomfort during calf raises or when pushing off with the foot.
- Walking is usually normal.
- No or minimal swelling.
- Little or no loss of strength.
Acute Treatment
- Stop activities that cause pain.
- Reduce calf loading from sprinting, jumping and explosive push-offs.
- Gentle movement within a pain-free or nearly pain-free range is beneficial.
- Avoid aggressive stretching and deep massage during the acute phase.
- Pain relief can be used if needed.
Rehabilitation
Begin with pain-controlled movement and light activation of the calf muscles.
Progress to calf raises with gradually increasing load.
Gradually train both straight-knee and bent-knee positions to load the calf muscles in different ways.
Gradually increase loading through walking and running.
Progress to faster running and acceleration.
Add jumping and football-specific movements before returning to full training.
Return to Play
- ☐ Pain-free during daily activities.
- ☐ Full or nearly full ankle range of motion.
- ☐ Able to perform calf raises without pain.
- ☐ Able to fully load the calf without pain.
- ☐ Able to run without pain.
- ☐ Able to accelerate and decelerate without pain.
- ☐ Able to jump and land without pain.
- ☐ Able to perform football-specific activities.
- ☐ Able to complete full training without worsening during or after training.
Moderate — Cirka 3–6 veckor
Symptoms
- Clear pain in the calf, often following a sudden or explosive movement.
- A sharp sensation or feeling that the calf suddenly stretched.
- Pain when walking, performing calf raises or pushing off with the foot.
- Noticeable reduction in calf strength.
- Tenderness over the injured area.
- Swelling or bruising may occur.
- Running and jumping may be difficult or painful.
Acute Treatment
- Stop the activity immediately.
- Reduce calf loading and avoid running, jumping and explosive push-offs.
- Avoid aggressive stretching and deep massage during the acute phase.
- Gentle movement can be introduced within a tolerated and pain-controlled range.
- Pain relief can be used if needed.
- If there is significant functional impairment or suspected major muscle injury, the injury should be assessed by a physiotherapist or other healthcare professional.
Rehabilitation
Begin with pain-controlled movement and light activation.
Progressive strengthening of the calf muscles.
Gradually increase the load during calf raises.
Train the calf muscles with both straight and bent knees.
Progress to walking and then running.
Gradually increase running speed.
Add acceleration and deceleration.
Progress to jumping, changes of direction and football-specific activities.
Complete full training before returning to matches.
Return to Play
- ☐ Pain-free during daily activities.
- ☐ Full or nearly full ankle range of motion.
- ☐ No significant tenderness over the injured area.
- ☐ Able to perform repeated calf raises with good control.
- ☐ Calf strength has substantially recovered compared with the uninjured side.
- ☐ Able to run at higher speed without pain.
- ☐ Able to accelerate and decelerate without pain.
- ☐ Able to jump and land without pain.
- ☐ Able to perform changes of direction.
- ☐ Able to perform football-specific activities.
- ☐ Able to complete full training without worsening during or after training.
Severe — Cirka 8–12 veckor eller längre
Symptoms
- Severe and sudden pain in the calf.
- A clear sensation that something tore or gave way.
- Marked loss of strength.
- Difficulty walking normally or putting weight on the leg.
- Difficulty or inability to perform a calf raise.
- Significant swelling or bruising.
- May involve a larger or complete muscle tear.
Acute Treatment
- Stop the activity immediately.
- Reduce weight-bearing and avoid unnecessary loading of the calf.
- Avoid stretching, deep massage and explosive movements.
- Pain relief can be used if needed.
- The injury should be assessed by a physiotherapist or doctor, particularly when there is significant functional impairment.
Rehabilitation
Protect and reduce load on the injured area during the acute phase.
Begin pain-controlled movement when appropriate.
Gradually restore range of motion and loading.
Progressive strengthening of the calf muscles.
Gradually increase the load through calf raises and other calf exercises.
Progress to walking and running.
Then progress to sprinting, acceleration, deceleration and jumping.
Add changes of direction and football-specific training.
Complete full training before match play.
Return to Play
- ☐ Pain-free during daily activities.
- ☐ Full ankle range of motion.
- ☐ No significant tenderness over the injured area.
- ☐ Restored calf strength.
- ☐ Able to perform repeated calf raises without pain and with good control.
- ☐ Able to run at high speed without pain.
- ☐ Able to accelerate and decelerate without pain.
- ☐ Able to jump and land without pain.
- ☐ Able to perform rapid changes of direction.
- ☐ Able to complete full football training without worsening.
- ☐ No increased pain or swelling after training.
- ☐ For a larger muscle injury, return to play should be assessed by a physiotherapist or doctor.
When to Seek Medical Care
- Seek medical care for severe or sudden pain, especially if you felt a clear pop or tearing sensation.
- Seek care if walking is difficult, you cannot perform a calf raise, or there is significant swelling or bruising.
- Also seek care if the pain does not improve despite reduced load and rehabilitation.
- Sudden calf pain with significant swelling, warmth or redness that is not clearly related to a muscle injury should be assessed promptly to rule out other causes.
- In children and adolescents, significant or persistent calf pain should be assessed by a healthcare professional.