Nerve conduction velocity (NCV) and EMG testing differentiate types of neuropathy — diabetic, mechanical compression, autoimmune, or hereditary. The right testing guides targeted treatment.
You’re in the right place. Dr. Tom Biernacki, DPM, FACFAS — board-certified foot & ankle surgeon with 3,000+ surgeries — explains exactly what NCV and EMG for neuropathy means and what works. Call (810) 206-1402 to book at Howell or Bloomfield Township.
Medically reviewed by Dr. Tom Biernacki, DPM · Board-Certified Podiatric Surgeon · Last reviewed: April 2026 · Editorial Policy
Quick Answer
Nerve Conduction Velocity and EMG Testing in Podiatric Diagn relates to foot neuropathy — typically caused by nerve compression or systemic. Most patients improve in varies by cause with conservative care. Appointments in Howell + Bloomfield Township: (810) 206-1402.
Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Township, MI. Last updated April 2026.
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Medically Reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatrist, Balance Foot & Ankle Specialists, Michigan. Last updated April 2026.
Electrodiagnostic testing — nerve conduction velocity (NCV) studies and electromyography (EMG) — provides objective quantification of peripheral nerve and muscle function that clinical examination alone cannot provide. In podiatric medicine, electrodiagnostics serve to confirm clinical diagnoses of neuropathy, quantify its severity, localize specific nerve entrapments, and guide treatment decisions in complex cases of foot and ankle sensory and motor dysfunction.
Nerve Conduction Velocity Studies: What They Measure
NCV studies measure the electrical conduction velocity and amplitude of peripheral nerves by applying a known electrical stimulus at one point and recording the response downstream. For sensory nerves, sensory nerve action potentials (SNAPs) are measured: velocity reflects myelin integrity (demyelination slows conduction), while amplitude reflects the number of functional axons (axonal loss reduces amplitude). For motor nerves, compound motor action potentials (CMAPs) are measured: velocity, amplitude, and distal latency (the time from stimulus to muscle contraction) quantify motor fiber function. In podiatric practice, the sural nerve (sensory — lateral foot sensation), superficial peroneal nerve (sensory — dorsal foot), deep peroneal nerve (motor — extensor digitorum brevis), and posterior tibial nerve (motor — intrinsic foot muscles; sensory — plantar foot) are the primary nerves studied. For tarsal tunnel syndrome, medial and lateral plantar nerve distal motor latencies are measured bilaterally — prolongation confirms the diagnosis.
EMG: Assessing Muscle Denervation
EMG inserts a fine needle electrode into a muscle to record electrical activity at rest and during voluntary contraction. Abnormal spontaneous activity at rest — fibrillation potentials and positive sharp waves — indicates active denervation from ongoing nerve damage. Large polyphasic motor unit potentials (MUPs) during voluntary contraction indicate reinnervation (chronic nerve injury with axon sprouting). EMG of intrinsic foot muscles (extensor digitorum brevis, abductor hallucis, abductor digiti minimi) quantifies the degree of denervation atrophy from tarsal tunnel syndrome, peroneal nerve palsy, or advanced polyneuropathy. EMG is particularly useful when clinical examination suggests motor deficit but the extent is uncertain.
Clinical Applications in Podiatry
Diabetic peripheral neuropathy: NCV confirms early large-fiber neuropathy (slowed conduction velocity) before clinical symptoms manifest, enabling earlier preventive intervention; quantifies severity for staging and monitoring response to metabolic control improvements. Tarsal tunnel syndrome: bilateral posterior tibial nerve motor latency prolongation with side-to-side asymmetry confirms the diagnosis and guides decompression surgical planning. Peroneal nerve palsy/drop foot: differentiates common peroneal nerve injury from L4-L5 radiculopathy (both cause foot drop) — critical because surgical management differs entirely. Charcot-Marie-Tooth disease: characteristic demyelinating pattern (NCV < 38 m/s with uniform slowing) distinguishes CMT1 from acquired demyelinating neuropathy. Dr. Biernacki at Balance Foot & Ankle coordinates NCV/EMG referral for patients with suspected nerve entrapment or neuropathy, integrating electrodiagnostic results with clinical findings for precise diagnosis. Call (810) 206-1402.
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Our board-certified podiatrists treat this condition at two convenient locations. Book online 24/7 at either office.
When to See a Podiatrist
Many foot conditions can be managed conservatively at home, but some require professional evaluation. See a podiatrist promptly if you experience:
- Pain that persists for more than 2 weeks despite rest
- Swelling, redness, or warmth that isn’t improving
- Numbness, tingling, or burning in the feet
- A wound or sore that is not healing within 2 weeks
- Any foot concern if you have diabetes or poor circulation
- Nail changes that suggest fungal infection or other problems
At Balance Foot & Ankle, our three board-certified podiatrists — Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin — provide comprehensive foot and ankle care at our Howell and Bloomfield Township offices. Most insurance plans are accepted.
Related Conditions & Resources
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Board-certified podiatrists Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin see patients daily at our Howell and Bloomfield Township, MI offices.
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Howell Office
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Howell, MI 48843
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Bloomfield Township, MI 48302
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In Our Clinic
Diabetic neuropathy patients in our clinic often don’t realize they have it until we put a 10-gram Semmes-Weinstein monofilament to the plantar foot and they can’t feel it. Many arrive for an unrelated concern — an ingrown toenail, a callus — and we catch the neuropathy on screening. The conversation then shifts: we need to discuss daily foot inspections, appropriate footwear, the urgency of any blister or open area, and the timing of vascular referral if pulses are diminished. Comprehensive diabetic foot exams are covered by Medicare annually. If you have diabetes, we want to see you once a year even if nothing hurts.
Watch: Dr. Tom explains
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When to See a Podiatrist
One unnoticed blister on a neuropathic foot can become a limb-threatening ulcer in under 14 days. Medicare covers diabetic shoes (A5500) and comprehensive foot exams annually for most diabetic patients with neuropathy or circulation concerns. Balance Foot & Ankle runs a dedicated diabetic limb-preservation program — vascular screening, offloading, ulcer care, and shoe fitting — all in one visit. Schedule your annual diabetic foot exam today.
Call Balance Foot & Ankle: (810) 206-1402 · Book online · Offices in Howell & Bloomfield Township
In-Office Treatment at Balance Foot & Ankle
When conservative care isn’t enough, Dr. Tom Biernacki and the team at Balance Foot & Ankle offer advanced treatment options — including Peripheral Neuropathy Treatment Michigan at our Howell and Bloomfield Township clinics.
Book online 24/7. Call (810) 206-1402 or book online.
Pros & Cons of Conservative Care for diabetic foot care
Advantages
- ✓ Daily inspection prevents amputation
- ✓ Most insurance covers DME
- ✓ Custom orthotics help
Considerations
- ✗ Daily commitment required
- ✗ Slow wound healing
- ✗ Charcot risk if neuropathy
Dr. Tom’s Recommended Products for diabetic foot care
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Drew Moonwalker Diabetic Shoe Dr. Tom’s Pick
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Appointments available in Howell and Bloomfield Township, Michigan.
Book Your VisitIn-Office Treatment at Balance Foot & Ankle
If home treatment isn’t providing relief for your neuropathy, our podiatry team at Balance Foot & Ankle can help with expert evaluations and advanced in-office care.
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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.
More questions patients ask
How often should diabetics check their feet?
Diabetic patients should perform daily self-examinations of both feet, checking for cuts, blisters, redness, swelling, calluses, and temperature changes. Professional diabetic foot exams should occur at least annually, or every 3-6 months for patients with neuropathy, peripheral artery disease, or history of foot ulcers. Dr. Biernacki provides comprehensive diabetic foot care programs.
Why do diabetics have foot problems?
Diabetes causes peripheral neuropathy (nerve damage reducing sensation), peripheral artery disease (reduced blood flow), and impaired immune function. This combination means injuries go unnoticed, heal slowly, and are prone to infection. Approximately 15% of diabetics will develop a foot ulcer, and diabetic foot complications are the leading cause of non-traumatic amputation. Prevention through regular podiatric care is essential.
What are the signs of diabetic neuropathy in feet?
Early signs include tingling, burning, or numbness starting in the toes and progressing upward. Other symptoms include sensitivity to touch, muscle weakness, balance problems, and loss of reflexes. If you experience any of these symptoms, schedule an evaluation with Dr. Biernacki at 810-206-1402 for nerve conduction testing and a comprehensive neuropathy management plan.
Still have a question about coverage or cost? Book online and we will check your benefits before your visit: Book in Howell · Book in Bloomfield Township. Prefer to talk it through first? Call (810) 206-1402.