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Two calf muscles
Gastrocnemius crosses the knee and ankle; the deeper soleus acts at the ankle. Their force reaches the Achilles tendon.
Knee position changes their contribution, so exercise selection depends on the task.
Chapter sources [1]
Understand the picture
Calf muscles and tendon
Gastrocnemius
The superficial muscle also crosses the knee.
Soleus
The deeper muscle supports stance and push-off.
Achilles tendon
It transfers force to the heel; rupture is a different injury.
Chapter sources [1]
Possible symptoms
Sharp pain, bruising, swelling and difficulty pushing off can follow a sudden movement.
No bruise does not mean no injury. Being able to walk does not exclude every tendon injury.
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Why it happens
A rapid push or loaded stretch can exceed current muscle capacity. Activity changes and previous injuries matter.
Recovery builds tolerance to your actual demands; flexibility alone does not explain every strain.
Chapter sources [2]
When to seek medical care first
New pain and swelling in one leg needs same-day advice, particularly after surgery or immobility. With breathlessness or chest pain, call 112.
Extreme sudden pain, a cold foot or rapid weakness requires urgent help.
Distinguishing possible causes
Assessment includes walking, the calf and Achilles tendon. Knee-related pain or a vein problem may need other investigation.
Muscle ultrasound and vein testing answer different questions. Stretching cannot rule out a clot.
Early walking
Stop the triggering activity and avoid prolonged limping. Temporary walking support may be appropriate.
Use permitted gentle movement rather than repeated tiptoe tests. Avoid heat and deep massage over a fresh injury.
Chapter sources [1]
Restoring strength
As symptoms settle, permitted ankle movement and heel raises may prepare push-off. Start with stable support and suitable load.
The exercise sheet uses both feet. Moving to one foot substantially increases demand and is not automatic.
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In everyday life
Resuming a walk
Shorten
Choose a comfortable distance.
Observe
Monitor swelling, limping and next-day response.
Progress
Increase one part of the walk at a time.
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Work and stairs
Divide journeys and use a handrail if needed. Standing and repeated stairs contribute to daily load.
Check evening and next-day symptoms. Increasing swelling or limping means reducing load and seeking advice.
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Returning to running
Brisk walking without pain or swelling is useful preparation. Running, jumping and turning require more capacity.
Add these gradually, checking control and the later response rather than only finishing the session.
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Recovery and reassessment
Recovery often takes weeks; significant injuries can take months. The activity you want to regain affects the process.
Increasing warmth, pain, new swelling or stalled function needs reassessment. Do not attribute every change to the original injury.
Chapter sources [1]
Your questions
Can walking rule out a clot?
No. Walking ability and home tests cannot exclude thrombosis. Medical assessment is needed if suspected.
Chapter sources [3]
Must I remain completely still?
Not usually. Movement and weight-bearing must match your injury and instructions.
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When can I try heel raises?
After clarifying the cause and restrictions, when weight-bearing and rising onto the toes are permitted and pain-free.
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Can I run as soon as walking is normal?
Running needs more strength and repetition. Prepare it gradually with appropriate assessment.
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Sources and references
- [1] Hull University Teaching Hospitals: Soft tissue injury, calf strain
- [2] IQWiG: Muskelzerrung und Muskelfaserriss
- [3] NHS: DVT (deep vein thrombosis)
- [4] NHS: Compartment syndrome
- [5] CGDIS: Appeler le 112
Text updated on
Medical review: awaiting Hasib Selimovic.