After surgery, during a spinal condition, or while living with arthritis, your dog faces two compounding problems: pain that discourages movement, and muscle atrophy that accelerates when movement stops. Pain medication masks symptoms but doesn’t rebuild what’s been lost. Rest prevents further injury but allows muscles to waste at alarming speed — dogs can lose 15–20% of muscle mass in a single week of disuse.
Electrotherapy breaks both cycles simultaneously. TENS delivers non-pharmaceutical pain relief by flooding nerve pathways with signals that block pain transmission and triggering endorphin release. NMES causes controlled muscle contractions — strengthening muscles and preventing atrophy even when your dog cannot or will not move voluntarily.
Two forms of electrical stimulation. One relieves pain. The other rebuilds strength. Together, they accelerate recovery in ways that neither exercise nor medication can alone.
Transcutaneous Electrical Nerve Stimulation
Neuromuscular Electrical Stimulation
In many rehabilitation programmes, both TENS and NMES are used in the same session — TENS first for pain relief, then NMES for active muscle work. The pain reduction from TENS allows more effective NMES treatment.
The spinal cord can only process a limited amount of sensory information simultaneously. TENS floods the nerve pathways with electrical signals that compete with — and override — pain signals travelling to the brain. It's like turning up the volume on a different channel: the pain signals are still being sent, but they can't get through. This provides immediate, drug-free pain relief that lasts during and often hours after the treatment session.
Low-frequency TENS (2–10 Hz) stimulates the release of endorphins and enkephalins — your dog's natural opioid-like painkillers. These bind to the same receptors as morphine, providing powerful analgesic effects without the side effects of pharmaceutical opioids. The pain relief from endorphin release typically outlasts the treatment session by several hours, and with regular sessions, the cumulative analgesic effect increases.
NMES delivers electrical pulses that depolarise motor neurons, triggering muscle contractions identical to those produced by voluntary movement. The key advantage: NMES can activate muscles that the dog cannot activate voluntarily — due to pain, nerve damage, or learned disuse. This prevents the rapid muscle atrophy that occurs during immobilisation and rebuilds muscle mass faster than exercise alone, because the therapist controls which muscles contract, for how long, and at what intensity.
Both TENS and NMES improve local blood flow to the treated area. The rhythmic muscle contractions from NMES create a "muscle pump" effect that enhances venous return and lymphatic drainage — reducing swelling and clearing metabolic waste products. The improved circulation delivers more oxygen and nutrients to healing tissues, accelerating repair. This is particularly valuable for post-surgical sites and chronic wounds.
Your therapist assesses the target area — identifying specific muscles, nerve pathways, and pain points. The treatment site is clipped (if needed) and cleaned. Small adhesive electrodes are placed at precise anatomical locations. Electrode placement is critical — it determines which nerves or muscles receive stimulation. Our therapists use their knowledge of canine anatomy to ensure optimal positioning for your dog's specific condition.
If pain management is needed, TENS is applied first. The device is started at the lowest intensity and gradually increased. You'll see your dog's response — most settle quickly as the gentle tingling sensation takes effect. Within minutes, endorphin release begins and pain signals are dampened. Treatment lasts 10–20 minutes per site. Many dogs visibly relax, lower their head, and some fall asleep.
If muscle work is needed, NMES follows. You'll see rhythmic muscle contractions as the device activates the target muscles — a contraction phase (5–10 seconds) followed by a rest phase (10–20 seconds). The therapist monitors each contraction for quality and adjusts intensity to achieve the optimal level of muscle activation. Treatment lasts 15–25 minutes per muscle group.
Electrodes are removed and the skin is checked. Your therapist may follow electrotherapy with other modalities — manual therapy while the muscles are warm and relaxed, laser therapy for additional anti-inflammatory effect, or land-based exercises to build on the muscle activation just achieved. Treatment progress is recorded, and the plan is adjusted for next time.
The most common application. TENS provides non-drug pain relief for arthritic joints, allowing dogs to move more comfortably. Regular sessions reduce reliance on pain medication and improve quality of life. Particularly valuable for senior dogs where long-term NSAID use carries organ risks.
After orthopaedic surgery (TPLO, TTA, fracture repair), TENS manages post-operative pain while NMES prevents muscle atrophy during the rest period and accelerates muscle rebuilding. Starting NMES early (once wound is sealed) produces significantly better outcomes than waiting for voluntary exercise alone.
When a limb has been immobilised, injured, or favoured due to pain, the surrounding muscles waste rapidly. NMES causes controlled muscle contractions that maintain or rebuild muscle mass — even when the dog cannot or will not use the limb voluntarily. Essential for patients who are non-ambulatory or non-weight-bearing.
IVDD patients benefit from TENS for the significant pain component, and NMES for maintaining and rebuilding muscle along the spine and in affected limbs. For dogs with reduced voluntary motor function, NMES provides the stimulus that the damaged nerves cannot — preventing atrophy while nerve recovery occurs.
Degenerative myelopathy, fibrocartilaginous embolism (FCE), vestibular disease, and peripheral nerve injuries. NMES maintains muscle bulk and joint mobility during the often slow process of neurological recovery. It can also provide proprioceptive input — helping the nervous system "remember" muscle activation patterns.
Pre-operative NMES strengthens the quadriceps and hamstring muscles before surgery, leading to faster post-operative recovery. Post-operative NMES rebuilds muscle mass that is rapidly lost after surgery — particularly the quadriceps group, which atrophies quickly when the stifle is painful or immobilised.
TENS can release painful muscle spasms and trigger points by overriding the pain-spasm-pain cycle. The electrical stimulation causes local muscle relaxation and endorphin release, breaking the cycle that perpetuates the spasm. Often used before manual therapy to allow deeper, more comfortable tissue work.
Age-related muscle loss (sarcopenia) and chronic pain reduce mobility and quality of life. Regular TENS + NMES sessions maintain muscle mass, manage pain, and keep senior dogs active and comfortable. Many owners describe it as "turning back the clock" for their ageing pets.
Electrodes are positioned along the nerve pathway serving the painful area — not necessarily on the painful spot itself. For spinal pain, electrodes may be placed paravertebrally (alongside the spine). For joint pain, they bracket the joint. For referred pain, electrodes may be placed at the nerve root. Incorrect placement = no pain relief.
Electrodes must be positioned over the motor point of the target muscle — the specific location where the motor nerve enters the muscle belly. This is where the muscle is most responsive to electrical stimulation. One electrode at the motor point, one at the distal tendon. Wrong placement = the wrong muscle contracts, or no contraction at all.
Most effective when combined — and at RehabVet, everything is under one roof
TENS relaxes painful muscles and reduces guarding, allowing the therapist to perform deeper, more effective manual therapy. NMES can then strengthen muscles through the improved range of motion that manual therapy created. The combination is particularly powerful for spinal conditions and joint stiffness.
TENS relaxes painful muscles and reduces guarding, allowing the therapist to perform deeper, more effective manual therapy. NMES can then strengthen muscles through the improved range of motion that manual therapy created. The combination is particularly powerful for spinal conditions and joint stiffness.
Class 4 laser and TENS both provide pain relief through different mechanisms — laser reduces inflammation at the cellular level while TENS blocks pain signal transmission. Used together, the analgesic effect is additive. Laser also accelerates tissue healing, complementing NMES's muscle-rebuilding effects.
Electro-acupuncture (electrical stimulation applied through acupuncture needles) combines the precision of acupuncture point targeting with the sustained stimulation of electrotherapy. This produces stronger and longer-lasting effects than either modality alone — particularly for chronic pain conditions and neurological rehabilitation.
Every electrotherapy session at RehabVet is performed by a qualified rehabilitation therapist with specific training in electrode placement, parameter selection, and patient monitoring. This isn't a machine left running on a timer — it's clinical therapy actively managed by an expert who adjusts settings in real time based on your dog's response.
Our electrotherapy devices offer precise control over frequency, pulse width, intensity, waveform, and duty cycle — parameters that consumer-grade units lack. This precision matters: the difference between therapeutic and sub-therapeutic stimulation is often in the parameters, not the machine itself.
Electrotherapy works best as part of a comprehensive programme. At RehabVet, your dog can receive electrotherapy, manual therapy, laser therapy, acupuncture, hydrotherapy, and HBOT — all in one visit, all coordinated by one team. No referrals between facilities. One team, one plan, integrated care.
Many clinics offering electrotherapy focus exclusively on dogs. RehabVet has extensive experience treating cats as well — adapting protocols for feline sensitivity, temperament, and anatomy. If your cat has arthritis, post-surgical pain, or a neurological condition, electrotherapy may be appropriate.
Real outcomes from real pet owners. Our results speak — and our reviews reflect the quality of care across all modalities, including electrotherapy as part of comprehensive rehabilitation programmes.
