In 40 seconds
Runner's knee — patellofemoral pain syndrome (PFPS) — is the most common running injury, affecting up to 25% of runners annually. The patella tracks poorly through the femoral groove, irritating cartilage and surrounding tissue. PEMF therapy reduces patellar inflammation and supports cartilage health. Always alongside hip and quad strengthening — the underlying biomechanical problem.
Quick facts
- Annual incidence in runners: Up to 25%
- Cause: Patellar maltracking, weak hip abductors
- PEMF role: Reduces inflammation, supports cartilage
- Always with: Hip + quad strength, gait analysis
- Recovery: 6–12 weeks typical
Why this injury happens in this sport
Weak hip abductors → knee valgus → patellar maltracking. Common in runners who suddenly increase volume, hill work, or run on cambered roads.
Recovery and return to sport
Reduce running volume by 30–50% during loading phase. Hip strengthening (clams, side-lying leg raises, monster walks) is the foundation. PEMF 2× per week for 6 weeks reduces inflammation and accelerates return.
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
Is PEMF better than KT tape?
Different tools. KT tape can briefly improve comfort during runs. PEMF addresses underlying inflammation. Use both alongside strength work.
Will running ever feel right again?
Yes for the vast majority — once hip abductor strength returns. Don't skip the strength work.
Looking for a PEMF clinic near you?
We list every credible PEMF therapy provider in the UK so you can find one near home.