In 40 seconds
Running stress fractures — tibia, metatarsals, fibula, femoral neck, navicular — are season-ending without proper management. PEMF therapy is FDA-cleared specifically for non-union fractures and accelerates union in confirmed stress fractures. The strongest single evidence base in PEMF therapy applies directly here. See our dedicated stress fracture guide.
Quick facts
- FDA-cleared: Yes — non-union fractures since 1979
- Common sites: Tibia, metatarsals, fibula, femoral neck, navicular
- Higher-risk sites: Anterior tibia, navicular, femoral neck
- Sessions: 3× per week for 6–8 weeks
- Recovery: 6–12 weeks
Why this injury happens in this sport
Sudden volume increases, RED-S (energy availability), and biomechanical risk factors all contribute. Imaging is essential.
Recovery and return to sport
Strict load reduction. Cross-train without impact. PEMF 3× per week directly over the fracture site. High-risk sites (anterior tibia, navicular, femoral neck) need orthopaedic specialist input.
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
Will PEMF help my femoral neck stress fracture?
Yes — but femoral neck stress fractures need urgent specialist orthopaedic management because they can progress to complete fracture requiring surgery.
Can I keep running cross-training?
Cycling and swimming usually fine. Aqua-jogging is excellent. Continued running impact delays healing.
Looking for a PEMF clinic near you?
We list every credible PEMF therapy provider in the UK so you can find one near home.