Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Hills, MI
Last reviewed: May 2026
Choosing the right Insoles Running: A to What Actually Works () depends on one clinical variable our podiatrists assess before any product recommendation — and most online comparisons never mention it. Getting this wrong is the most common reason patients cycle through multiple products without relief. Call (810) 206-1402 — expert podiatric care across Michigan.
Running insoles represent one of the most evidence-contested product categories in sports medicine. Claims range from injury prevention to performance enhancement, while the research shows more nuanced outcomes. This guide focuses on the specific biomechanical conditions where running insoles provide documented benefit — and where they do not.
What Running Insoles Can and Cannot Do
Running insoles modify plantar pressure distribution, provide arch support, and in some cases add cushioning or posting (angle correction). They cannot correct overstriding, improve running cadence, alter knee alignment, or prevent injuries caused by training error. The evidence for injury prevention is strongest for specific diagnoses (plantar fasciitis, overpronation-related PTTD) and weakest for general “injury prevention” claims in uninjured runners.
Evidence by Running Condition
| Condition | Insole Evidence | What Works | OTC Sufficient? |
|---|---|---|---|
| Plantar fasciitis | High | Medial arch support + heel cushioning; combined with stretching | Yes for mild-moderate; custom for severe/failed OTC |
| Patellofemoral pain | Moderate | Lateral wedge insoles reduce Q-angle forces | Yes — specific wedge shape matters |
| Medial tibial stress syndrome (shin splints) | Moderate | Shock-absorbing insoles reduce tibial impact; combined with cadence work | Yes for cushioning; custom if biomechanical |
| IT band syndrome | Low | Lateral wedge may help; evidence weak | OTC trial reasonable |
| Achilles tendinopathy | Moderate | Heel lift reduces Achilles load; combined with eccentric exercise | Yes — heel lift specific |
| Metatarsal stress fracture | Moderate | Metatarsal dome reduces forefoot peak pressure during recovery | OTC with correct met dome position |
| General injury prevention (uninjured runner) | Low / inconsistent | No consistent prevention benefit in healthy runners | N/A — not indicated without symptoms |
Key Features to Evaluate
| Feature | What to Look For | Why It Matters |
|---|---|---|
| Shell rigidity | Semi-rigid (EVA/polypropylene hybrid) for most running conditions | Soft foam provides cushion only; rigid shell provides biomechanical control |
| Arch height | Medium (most runners); high for significant flat foot | Arch that is too high creates navicular pressure; too low provides no support |
| Heel cup depth | Minimum 14mm for hindfoot control | Shallow cups provide no calcaneal eversion control |
| Shock absorption | Dual-density: firmer arch + softer heel strike zone | Single-density EVA compresses uniformly; dual-density targets function by zone |
| Shoe compatibility | Matches shoe category (neutral vs. stability shoe) | Adding a high-arch OTC insole to a stability shoe doubles the posting — potential overcorrection |
At Balance Foot & Ankle in Howell and Bloomfield Hills, we use digital pressure mapping to identify exact loading patterns and prescribe insoles matched to your specific running biomechanics and injury diagnosis. Call (810) 206-1402.
PubMed: Running Insoles and Injury Prevention
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Doctor Answer
What should you look for in insoles for running?
Running insoles should match your foot type and gait. Flat feet benefit from firm arch support insoles with medial posting to control overpronation. High arches need cushioned, flexible insoles that absorb impact without rigid support. I recommend semi-custom or custom orthotics for runners with recurring injuries rather than generic cushioning insoles, which offer comfort but minimal biomechanical correction. The insole should fill the shoe without creating pressure points, and the heel cup depth should match your foot.
Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has made him one of the most-followed foot & ankle educators on YouTube.