Calf strains are common in sports with sudden acceleration — racket sports, football, sprinting — and particularly in people over about thirty-five who train hard but intermittently.
Grades and timescales
The same grading applies as to any muscle strain:
- Grade 1 — a few fibres, some tightness. 4–6 weeks.
- Grade 2 — a partial tear, usually with bruising. 6–10 weeks.
- Grade 3 — a complete tear. 12 weeks to 6 months, needs medical review.
Two things this could be instead
An Achilles rupture. If the pain was in the tendon above the heel rather than the muscle belly, with a snap and an inability to push off, go to A&E the same day.
A blood clot. A calf that is swollen, hot, red and painful without a clear injury needs urgent medical attention, not massage. This one matters: treating a DVT with soft tissue work is genuinely dangerous. If you cannot point to the moment it happened, get it checked first.
What treatment involves
Early on, protection and gentle work away from the injury site. As it settles, soft tissue work to guide scar tissue along the line of the muscle rather than across it, restoring length and calf function.
Then progressive loading — calf raises building to hopping and running. The calf takes a great deal of load in running, and returning before it can handle that load is why this injury recurs.