Populations and Risk Factors
- Women affected approximately 3:1 over men; onset most common between ages 20 and 50
- Higher prevalence at greater distance from the equator — suggests a role for vitamin D deficiency and reduced ultraviolet radiation exposure
- Strong genetic predisposition: HLA-DRB1 gene variants associated; first-degree relatives have 20–40 times the population risk
- History of Epstein-Barr virus (EBV) infection is the strongest environmental risk factor identified to date
- Smoking increases both risk and rate of progression
- Uhthoff's phenomenon: pre-existing symptoms worsen temporarily with increased body temperature (exercise, hot showers, fever) — not a relapse but a physiological effect of heat on demyelinated axon conduction; clinically critical for MT planning
Causes and Pathophysiology
- Autoimmune demyelination: CD4+ and CD8+ T-lymphocytes breach the blood-brain barrier, initiating an inflammatory attack on myelin produced by oligodendrocytes. B-cells and macrophages contribute to the lesion. The resulting plaques (demyelinated areas) impair saltatory conduction, reducing nerve impulse speed and reliability.
- Lesion locations determine symptoms: Lesions can occur anywhere in the CNS white matter. Common sites and their consequences:
- Spinal cord: Lhermitte's sign (cervical lesion), spasticity, bladder/bowel dysfunction, sensory loss
- Optic nerve: optic neuritis — painful unilateral visual loss (often the presenting symptom)
- Brainstem/cerebellum: diplopia, vertigo, dysarthria, dysphagia, internuclear ophthalmoplegia, ataxia, intention tremor
- Cerebral hemispheres: cognitive impairment, fatigue, mood changes, focal motor or sensory deficits
- Remyelination and repair: Partial remyelination can occur in early disease, accounting for symptom resolution during remissions. Over time, axonal loss accumulates and remyelination capacity is exhausted, leading to irreversible deficits.
- Fatigue: The most common and disabling symptom — neurologically driven (not muscular), related to axonal inefficiency and central nervous system inflammation. Distinct from normal fatigue and disproportionate to the amount of activity performed.
Disease Courses
| Type | Description | Prevalence |
|---|---|---|
| Relapsing-Remitting MS (RRMS) | Discrete attacks (relapses) with full or partial recovery; no progression between relapses | ~85% at diagnosis |
| Secondary Progressive MS (SPMS) | Begins as RRMS; transitions to gradual progression with or without relapses | Most RRMS patients over time |
| Primary Progressive MS (PPMS) | Gradual progression from onset without relapses; more common in men; later onset | ~15% at diagnosis |
| Clinically Isolated Syndrome (CIS) | First clinical episode of demyelination; may or may not progress to definite MS | Precedes MS diagnosis |
Signs and Symptoms
- Fatigue: Most common and often most disabling symptom; neurological in origin; worsened by heat (Uhthoff's), infection, or exertion; not relieved by rest in the same way as muscular fatigue
- Optic neuritis: Painful loss of vision in one eye, often with impaired color perception; frequently the presenting symptom; resolves with treatment but may recur
- Lhermitte's sign: Electric shock or tingling sensation radiating down the spine or into the limbs with neck flexion (chin to chest) — indicates a demyelinating lesion in the cervical spinal cord; a red flag finding
- Motor symptoms: UMN-pattern spasticity (velocity-dependent increased resistance to passive movement), weakness, and impaired coordination; foot drop common with lower spinal or corticospinal involvement
- Sensory symptoms: Paresthesia (numbness, tingling, pins and needles), dysesthesia (painful abnormal sensations), and sensory loss in variable and often asymmetric distributions; may be widespread or restricted to a limb
- Cerebellar symptoms: Ataxia (unsteady gait), intention tremor, dysarthria, nystagmus — the triad of Charcot (nystagmus, intention tremor, scanning speech) is historically associated with MS
- Bladder/bowel dysfunction: Urgency, frequency, incontinence, or retention; very common and significantly impacts quality of life
- Cognitive symptoms: "Cog fog" — impaired processing speed, working memory, and attention; less commonly frank dementia
- Uhthoff's phenomenon: Transient worsening of any existing symptom with heat exposure; resolves once temperature normalizes; not a relapse
Assessment Profile
Subjective Presentation
- Chief complaint: Variable — may present with any neurological complaint; most common are profound and disproportionate fatigue, unilateral visual changes, patchy numbness or tingling, balance difficulties, or gait unsteadiness; history often reveals episodes that resolved spontaneously (characteristic relapsing-remitting pattern)
- Pain quality: Neuropathic — burning, dysesthetic, or electric in character; Lhermitte's sign is pathognomonic (electric shock with neck flexion); spasticity produces a deep muscular ache or cramping; fatigue is cognitive and physical but neurological in origin
- Onset: May be relapsing-remitting (discrete attacks separated by partial recovery) or gradually progressive; dissemination in time (multiple attacks) and space (multiple CNS locations) is required for diagnosis (McDonald Criteria)
- Aggravating factors: Heat (Uhthoff's phenomenon — exercise, hot showers, fever), infection, fatigue, stress; symptoms fluctuate throughout the day, often worse in the afternoon
- Easing factors: Cooler environment; rest; pacing activity; disease-modifying therapy reduces relapse frequency
- Red flags: New onset Lhermitte's sign → cervical cord lesion; sudden bilateral weakness or loss of sensation → medical review for acute relapse; optic neuritis (sudden unilateral visual loss) → urgent neurology referral; bowel or bladder dysfunction with new-onset neurological signs → emergency evaluation
Observation
- Local inspection: Muscle atrophy from disuse in chronically affected limbs; may use assistive devices (cane, walker, AFO for foot drop); no skin changes specific to MS
- Posture: Spastic posture pattern — hip and knee flexion tendency, plantarflexion bias (equinus), trunk hypotonia in some; cervical forward posture from fatigue; postural asymmetry from unilateral spasticity
- Gait: Spastic gait (scissoring, circumduction); ataxic gait (wide-based, unsteady, poorly coordinated); foot drop producing steppage gait; combinations are common; fatigue worsens gait abnormality over the course of a session
Palpation
- Tone: Spastic hypertonia — velocity-dependent increased resistance to passive movement (UMN pattern); distinct from the more constant resistance of muscle guarding; clonus may be elicitable at the ankle with rapid dorsiflexion; the most affected muscles are typically hip adductors, knee flexors, and plantarflexors; affected muscles may feel rigid and boardlike
- Tenderness: Tender trigger points in chronically spastic muscles from sustained contraction and ischemia; paraspinal tenderness in areas affected by spinal cord lesions; patients may have allodynia (hypersensitivity to normal touch) in areas of sensory disturbance — pressure that is therapeutic for a neurologically intact patient may be painful or dysesthetic; always perform sensory screening before applying pressure to any area the patient reports as "different"
- Temperature: Affected limbs may feel cooler from reduced activity and impaired sympathetic regulation; acute demyelinating lesion areas do not produce local warmth; heat applied therapeutically will worsen symptoms temporarily (Uhthoff's) — warm hydrotherapy and heat packs are contraindicated
- Tissue quality: Disuse atrophy — soft, reduced bulk in chronically affected muscles; spastic muscles palpate as hypertonic and poorly extensible; fascial mobility reduced in chronically immobile segments; edema possible in dependent limbs with reduced mobility
Motion Assessment
- AROM: Spasticity limits range in characteristic UMN patterns (hip adductors, knee flexors, plantarflexors are most affected); fatigue reduces available range over time within a session; cerebellar involvement produces dysmetria — patient overshoots or undershoots the target
- PROM / end-feel: Velocity-dependent resistance — rapid passive movement meets greater resistance than slow movement (defines spasticity vs. rigidity); end-feel is elastic-muscular, not capsular; slow sustained PROM may achieve near-full range despite apparent spasticity
- Resisted testing: UMN-pattern weakness — widespread, not dermatomal or myotomal; tests may be confounded by spasticity, fatigue, or poor voluntary control; compare bilaterally and account for dominant side
Special Test Cluster
| Test | Positive Finding | Purpose |
|---|---|---|
| Lhermitte's Sign (CMTO) | Electric shock sensation radiating down the spine or into limbs with passive cervical flexion (chin to chest) | Identify cervical cord demyelinating lesion; red flag — medical referral before proceeding with cervical treatment |
| Babinski Sign (CMTO) | Great toe extends (dorsiflexes), other toes fan out when the lateral sole is stroked | Confirm UMN lesion; positive in adults indicates CNS pathology — refer if new or unexplained |
| Deep tendon reflexes (UE and LE) (CMTO) | Hyperreflexia (3+ to 4+) bilaterally or asymmetrically; clonus at the ankle | Differentiate UMN (hyperreflexia) from LMN (hyporeflexia) — critical for distinguishing MS from peripheral neuropathy |
| Romberg's Test (supplementary) | Increased sway or loss of balance with eyes closed (positive Romberg) | Screen for proprioceptive/spinal cord sensory pathway involvement; cerebellar ataxia produces sway with eyes open |
| Uhthoff Screening (supplementary) | Symptom worsening during or after mild exertion or mild warmth application | Identify heat sensitivity before applying any thermal modality; guides treatment environment and session pacing |
UMN vs. LMN reminder — critical for MS assessment:
| Feature | UMN (MS, stroke, cord compression) | LMN (disc herniation, peripheral neuropathy) |
|---|---|---|
| Tone | Increased (spasticity) | Decreased (flaccidity) |
| Reflexes | Hyperreflexia, clonus | Hyporeflexia or absent |
| Babinski | Positive | Negative |
| Weakness distribution | Broad — limb or body half | Specific — dermatomal or peripheral nerve |
| Babinski | Positive | Negative |
Differential Assessment
| Condition | Key Distinguishing Feature |
|---|---|
| Neuromyelitis Optica (NMO/Devic's) | Attacks specifically target optic nerve and cervical spinal cord; AQP4-IgG antibody positive; typically more severe attacks with less recovery than MS |
| Transverse Myelitis | Single inflammatory spinal cord event; dissemination in space and time not met; may be CIS or isolated event |
| Guillain-Barré Syndrome | PNS demyelination — LMN signs (flaccid weakness, hyporeflexia, absent Babinski); ascending weakness; CSF shows albuminocytologic dissociation |
| Vitamin B12 Deficiency (Subacute Combined Degeneration) | Spinal cord posterior and lateral column involvement; macrocytic anemia; low serum B12; UMN and LMN signs combined |
| CNS Lupus | Positive ANA/anti-dsDNA; systemic features (rash, joint pain, renal involvement); MRI lesions similar to MS but clinical context differs |
CMTO Exam Relevance
- CMTO Appendix category A4 (neurological conditions)
- Know the UMN sign cluster: spasticity + hyperreflexia + positive Babinski — all indicate CNS pathology requiring medical evaluation
- Lhermitte's sign is frequently tested; a positive finding in the context of MS indicates cervical spinal cord involvement and is a contraindication to cervical mobilization
- Know the four disease courses (RRMS, SPMS, PPMS, CIS) and that RRMS is most common (~85%)
- Uhthoff's phenomenon is a classic MS-specific feature — heat worsens symptoms transiently; must be known for MT safety planning
- Differentiate MS (UMN, CNS, demyelinating) from Guillain-Barré (LMN, PNS, demyelinating) — same process, completely different clinical picture
Massage Therapy Considerations
- Primary therapeutic target: secondary muscle tension from chronic spasticity — hip adductors, knee flexors, plantarflexors are most affected by UMN spastic patterns; compensatory postural overload in unaffected areas
- Uhthoff's phenomenon — the #1 MT safety rule for MS: avoid ALL heat modalities (warm hydrotherapy, hot packs, heated table, ultrasound); maintain a cool treatment environment; monitor symptom changes throughout the session; symptom worsening during treatment is a signal to cool the environment, not necessarily to stop treatment
- Spasticity principle: gentle, sustained, slow-velocity techniques are appropriate — do not invoke clonus; rapid movements or aggressive stretching may worsen spasticity through the stretch reflex; rhythmic passive mobilization can temporarily reduce spastic tone
- Sensory changes principle: areas of paresthesia or dysesthesia require conservative pressure; client feedback about pressure may be unreliable in affected areas; never apply pressure to an area of allodynia without explicit tolerance confirmation
- Session pacing: MS fatigue is neurological and unpredictable — keep sessions shorter than for non-neurological clients; allow rest periods; schedule at the client's best time of day (typically morning)
- Contraindications: deep heat modalities; aggressive stretching invoking clonus; deep pressure over areas of allodynia; cervical mobilization if Lhermitte's sign is present
Treatment Plan Foundation
Clinical Goals
- Reduce secondary muscle tension in chronically spastic muscle groups
- Maintain fascial mobility in chronically immobile segments
- Support circulation in affected limbs with reduced mobility
- Provide parasympathetic regulation and reduce CNS excitability
Position
- Side-lying preferred — may be difficult to assume prone with significant spasticity or respiratory compromise
- Additional bolstering for spastic posturing and balance
- Supine for upper extremity and cervical work with appropriate support
- Room temperature maintained at cool-to-neutral — no heated table
Session Sequence
- General effleurage to posterior trunk and lower extremities — assess spastic tone distribution; note areas of allodynia or altered sensation before proceeding
- Slow, sustained myofascial release to hip adductors — address the most common spastic pattern; slow velocity to avoid triggering stretch reflex
- Gentle longitudinal stripping of hamstrings and knee flexors — reduce flexion bias in the lower extremity; sustained slow pressure
- Gastrocnemius and soleus release — address plantarflexion contracture tendency; gentle sustained stretching at end-range [avoid rapid dorsiflexion that may invoke ankle clonus]
- Compensatory pattern work — address upper trapezius, cervical extensors, and contralateral overload from asymmetric spasticity
- Gentle effleurage to extremities — support peripheral circulation in limbs with reduced activity [monitor for fatigue throughout — shorten or stop if neurological fatigue emerges]
Adjunct Modalities
- Hydrotherapy: ALL heat modalities are contraindicated (Uhthoff's phenomenon — heat worsens neurological symptoms); cool towel or room-temperature applications only; cool compress available if the client reports symptom worsening during treatment; if hydrotherapy is used, it must be at or below body temperature
- Joint mobilization: rhythmic passive mobilization of affected limbs — slow, rhythmic movement through available PROM to temporarily reduce spastic tone and maintain joint mobility; performed after soft tissue release; velocity must remain slow to avoid triggering the stretch reflex; cervical mobilization is contraindicated if Lhermitte's sign is positive
- Remedial exercise (on-table): gentle active-assisted ROM through available range in affected limbs — therapist supports the limb while the client moves through their available range; purpose is to maintain joint mobility and provide proprioceptive input; stop if neurological fatigue emerges; do not perform resisted strengthening during the treatment session — fatigue risk outweighs benefit in-session
Exam Station Notes
- Demonstrate understanding of UMN vs. LMN distinction — state that spasticity (velocity-dependent) requires slow techniques, not the aggressive stretching appropriate for peripheral muscle guarding
- If Lhermitte's sign was positive on assessment, state that cervical mobilization is contraindicated and demonstrate avoidance
- Monitor and document fatigue level throughout — the examiner expects to see session pacing and willingness to shorten the treatment
- Demonstrate sensory screening before applying pressure to any area the patient reports as "different"
Verbal Notes
- Uhthoff's warning: at the start of every session, confirm the room temperature is comfortable and advise: "If you notice any of your symptoms getting worse — vision changes, tingling, weakness — let me know right away. We may need to cool the room down."
- Altered sensation: before working any area with reported sensory changes: "I know this area feels different for you. I'm going to start with very light pressure. Tell me what you feel — I need your feedback to guide how much pressure is appropriate."
- Post-treatment fatigue: advise that neurological fatigue may increase for several hours after treatment — plan rest time after the appointment; do not schedule physically demanding activities on treatment days
Self-Care
- Gentle daily stretching of spastic muscle groups — slow, sustained holds (no bouncing or rapid stretching)
- Cooling strategies — cool environment for exercise, cooling vest if Uhthoff's is prominent
- Activity pacing throughout the day — schedule demanding tasks for the morning when neurological fatigue is lowest
Key Takeaways
- MS is a CNS autoimmune demyelinating disease producing UMN signs — spasticity, hyperreflexia, positive Babinski — distinct from peripheral nerve conditions
- The four disease courses are RRMS (most common, ~85%), SPMS, PPMS, and CIS; course affects prognosis and treatment planning
- Uhthoff's phenomenon — symptom worsening with heat — is pathognomonic for MS and is the most important MT safety consideration; all heat modalities are contraindicated
- Lhermitte's sign (electric shock with neck flexion) indicates a cervical cord lesion and is a contraindication to cervical mobilization
- Fatigue in MS is neurological in origin, not muscular; sessions must be paced accordingly
- Areas of sensory disturbance require conservative pressure; client feedback about pain may be unreliable in affected regions