Quick answer
An injection does not restore calf strength, endurance, running tolerance or sport-specific capacity. If an adjunctive injection is used, rehabilitation remains necessary to rebuild the tendon-muscle unit and prepare it for real-world load.
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The injection cannot do the whole job
Pain reduction can create an opportunity to progress rehabilitation, but symptom change alone does not establish readiness for running or sport.
Coordinate the plan
The clinician providing an injection and the physiotherapist or rehabilitation professional should ideally work from the same diagnosis and progression goals. The post-injection loading plan should be explicit rather than leaving the patient uncertain about when to move.
Measure function, not just pain
Heel-raise capacity, calf strength, tolerance of repeated loading and sport-specific tasks can help determine progress. Imaging changes are not required for a successful clinical outcome.
Key points
- Set the rehabilitation plan before the procedure.
- Avoid prolonged unnecessary unloading after an adjunctive treatment.
- Return-to-sport decisions require functional progression.
Frequently Asked Questions
Can I just have an injection and rest?
That approach does not rebuild the capacity the Achilles needs for daily or sporting loads.
When can exercise restart after an injection?
It depends on the procedure and individual case; the treating clinician should provide a staged plan.