Calf Strain
A calf strain is an injury to the muscles at the back of the lower leg, common in running and sports involving sprinting or sudden acceleration. Rehabilitation supports recovery and a safe return to activity.
30-minute appointments as standard · No referral required
What is Calf Strain?
A calf strain involves stretching or tearing of the muscle fibres in the lower leg, often occurring during running, sprinting or sudden acceleration. It’s common in running and field sports.
This can include sudden pain in the calf during activity, tightness, difficulty pushing off or rising onto your toes, and sometimes bruising depending on severity.
How We Assess Calf Strain
Assessment includes understanding how the injury occurred, your current symptoms, and your strength and function through the calf.
We assess calf strength, movement and function, including how the muscle responds to loaded and functional movements such as calf raises or hopping, to guide rehabilitation.
Treatment and Rehabilitation Approach
Calf strains are commonly graded I to III based on severity, which — alongside your assessment findings — helps guide how quickly your program can progress. Treatment typically progresses from managing initial symptoms, through progressive strengthening, to running and sport-specific loading as part of a staged return.
This sits within our broader sports physiotherapy approach, with a focus on rebuilding capacity before returning to full training.
Looking for help with a Calf Strain?
An assessment can help identify the factors contributing to your symptoms and guide the next steps.
Symptoms
Sudden pain in the calf
Often occurs during running or a sudden push-off movement.
Tightness or difficulty pushing off
Discomfort with rising onto the toes or pushing off the affected leg is common.
Bruising or swelling
May develop depending on the severity of the strain, particularly with more significant injuries.
Causes and Risk Factors
Sudden acceleration or sprinting
Calf strains often occur during sprinting or rapid changes in pace.
Insufficient calf strength or conditioning
Reduced calf strength relative to training demands can increase strain risk.
Previous calf injury
A history of calf strains is associated with future injury risk, which is why rehabilitation matters.
Return-to-Sport Considerations
Restore pain-free movement
Early rehabilitation focuses on settling symptoms and restoring comfortable walking and movement.
Progressive strength and loading
Calf strength is rebuilt in stages, from basic loading through to more dynamic, running-specific exercise.
Return to running and sport gradually
Running and sport-specific demands are reintroduced progressively, guided by how the calf responds.
Frequently Asked Questions
How long does a calf strain take to heal?
This depends on the severity of the strain — your physiotherapist can give you a clearer timeframe once assessed.
Can I keep exercising with a calf strain?
This depends on severity and what type of exercise. Low-load activity is often possible, while running is usually modified until the calf has recovered sufficient capacity.
Do I need a scan for a calf strain?
Imaging can be useful for more significant injuries or if recovery isn’t progressing as expected, discussed with you at assessment.
Why does my calf keep getting tight or strained?
Recurring calf issues are often linked to returning to full activity before the muscle has regained sufficient strength, which structured rehabilitation aims to address.
Clinically reviewed by Ryan Harris on 18/08/2026