In 40 seconds
Achilles tendinopathy is a stubborn chronic injury in runners. Mid-portion (most common) and insertional (more difficult) variants both respond to PEMF + heavy slow resistance loading. See our dedicated Achilles guide for full clinical picture and protocol.
Quick facts
- Two types: Mid-portion vs insertional
- Standard care: Heavy slow resistance (HSR) calf raises
- PEMF role: Inflammation, microcirculation, tenocyte repair
- Recovery: 8–16 weeks typical
- Avoid: Steroid injection (rupture risk)
Why this injury happens in this sport
Mid-portion Achilles is more responsive to standard rehab; insertional needs more careful loading (avoid deep dorsiflexion early). Both benefit from PEMF's microcirculation effect on this poorly-vascularised tendon.
Recovery and return to sport
Heavy slow resistance loading 3× per week. Daily PEMF for 2 weeks then 3× per week. Reduce running. Most runners return in 8–16 weeks; stubborn cases longer.
Contraindications
Hard exclusions — do not have PEMF if any apply:
- Pacemaker, implantable cardioverter-defibrillator (ICD), or any cardiac electronic device
- Cochlear implant or other implanted electronic hearing device
- Spinal cord stimulator, deep-brain stimulator, vagus nerve stimulator
- Intrathecal pump or implanted drug pump
- Insulin pump (continuous glucose monitors are usually fine — confirm with the clinic)
- Active infection at the treatment site
- Pregnancy — when treatment would be over the abdomen, lumbar spine, or pelvis
Discuss with your GP or specialist before booking if any apply:
- Active malignancy or recent cancer history (oncologist clearance required)
- History of seizures or epilepsy
- Multiple sclerosis or other neurological condition under specialist care
- Anticoagulant therapy (PEMF itself does not thin blood, but bruising risk if local circulation is already compromised)
- Children under 14 (most UK clinics will not treat under-18s without paediatric specialist input)
- Recent surgery within the last 14 days at the treatment site (confirm with surgeon)
NOT contraindications — these are commonly misunderstood:
- Plates, rods, screws and other passive metal orthopaedic hardware
- Dental implants and dental crowns
- Joint replacements (hip, knee, shoulder)
- IUDs (copper or hormonal)
- Tattoos and piercings (jewellery should be removed for the session)
Specific to this condition: pacemakers, defibrillators, cochlear implants, insulin pumps, electronic implants; active malignancy without specialist clearance; pregnancy (over the abdomen); active infection; epilepsy without GP clearance.
Frequently asked questions
Insertional vs mid-portion — different?
Yes — insertional needs avoiding deep ankle dorsiflexion in early loading. Otherwise same principles.
Achilles rupture risk?
Tendinopathy without proper loading can progress. Steroid injection significantly increases rupture risk.
Looking for a PEMF clinic near you?
We list every credible PEMF therapy provider in the UK so you can find one near home.