Q4 Notes
Neuromuscular Reflex
Neuromuscular Reflex: Control & coordinate skeletal muscle contraction
Types:
Simple Reflex Arc
Complex Neuronal Pathways
Reflex Arc: Simple neuronal pathways for reflexes; providing a predictable motor outcomd for a specific sensory stimulation
Sensory Receptors
Mechonoreceptors: Sensitive to mehcanical changes
Proprioception: Sense & awareness of where body parts are in space
Muscle Spindle: Receptor in muscle belly which detects length/stretch of muscle fibres; signals a reflextive contraction
Golgi Tendon Organ: Receptor in tendon detecting contraction/tension in the muscle; signals a reflexieve relaxation
Reciproal Inhibition: Reflexthat coordinates effecort between agonist & antagonist
Muscles recieve signals: Agonist contracts while antagonist is inhibited.
Can be used to allieviate hypertonicity
For Movement ro Occur:
Agonist is signaled to contract from nervous system
Antagonist release is by nervous system
Helps the cramp relax slightly before stretching the muscle fibers.
Isometric contraction of the antagonist sends a relaxation signal to the cramping muscle.
Reciprocal inhibition can be used before soft tissue work to engage neck flexors or opposite-side lateral flexors.
Stretch Reflex & Gama Gain
Stretch Reflex: Reflexive contraction of a muscle after it is stretched due to stimulation of muscle spindle
2 Portions:
Alpha Loop
Alpha Sensory Neuron: Looped around muscle spindles & detects stretch of fibres
Alpha Motor Neuron: Innervates extrafusal fbres to create tension in response to the stretch
Mediates the Stretch Reflex
Gamma Loop
Gamma Sensory Neuron: Attached at ends of spindle
Gamma Motor Neuron: Innervates intrafusal fibres
Regulates sensitivity of the muscle spindle by adjusting the length & tension of intrafusal fibres
Stimulates alpha sensory neuron
Gamma Gain
Increased tension in intrafusal fibers heightens muscle spindle sensitivity to the rate of lengthening.
Spindle sends signals to the spinal cord based on how quickly the muscle is lengthening.
A fast stretch triggers a strong, immediate protective contraction.
Characteristics of Tender Points
May not be palpable.
Hypersensitive to mechanical pressure.
No referred pain; often silent until compressed.
Gamma gain can trigger a false stretch reflex.
Muscle held in a shortened position may suddenly contract concentrically when quickly lengthened.
Reposition of the muscle may desensitize & reset
Strain-Counter Strain
Positional Release
Functional Technique
Tender Point Release
Characteristics of Trigger Points
Palpable nodule in a taut muscle band.
Hypersensitive to pressure; reproduces pain in a predictable pattern.
Pain linked to chemical irritation at motor end plates, not neurological signals
Cause of Trigger Points (TrPs)
Muscle overload, injury, or underuse disrupts motor end plate function and increases acetylcholine release.
“Calcium spill” from sarcoplasmic reticulum causes actin-myosin binding.
Sarcomeres shorten, forming a contraction knot.
Sustained contraction depletes ATP, reducing blood flow and energy.
Leads to metabolic crisis, muscle fatigue, low-grade inflammation, and pain
Fascial System
Connective Tissue which Protects & Supports
Dermis
Hypodermis
Ligaments
Periosteum
Fascial Layers
Meniges
Aponeurosis
White connective tissue which acts as an attachment ppoint for several muscles
The Fascial System
Organized Connective Tissue:
Tendons
Aponeuroses
Ligaments
Capsules
Disorganized Connective Tissue:
Fascia
Key Properties:
Unifying structural element of the body
Extends from skin to deep bones/organs
Strong, flexible, resilient
Damage in one area affects the whole system
Tensegrity:
Structural integrity maintained by dispersing stress
System-wide tension and compression balance
Fascial Layers
Pannicular / Superficial
Axial Fascia
Meningeal
Visceral
Manual Therapist
Superficial Fascia
Hypodermis
Superficial Muscles
Deep Fascia
Combo of all other layers that organize & surrond individual muscles, bones, & organs
Fascial Patterns
Myofascial Chains
Connective links between muscles, bones, fascia
Provide mechanical communication
Types:
Vertical Lines: Superficial & Deep
Lateral Line
Spiral Line
Superficial Front & Back Line
Horizontal Bands
(Superficial, anchoring torso to spine)
7 Bands:
Groin
Inguinal
Umbillical
Chest
Collar
Chin
Eye
Horizontal Fascial Planes
(Deep fascia sheets supporting internal cavities)
4 Planes:
Cranial base – separates spinal/cranial cavities
Thoracic inlet – top of ribcage
Diaphragm – separates thoracic/abdominopelvic cavities
Pelvic diaphragm – supports pelvic organs
Mechanial Properties of Fascia
Viscoelasticity
Fascia extends and rebounds (not stretches and recoils).
Exercise increases fibroblast activity → more tropocollagen.
Treatment frequency/duration may matter more than session length.
ROM (range of motion) improves after exercise or massage.
Collagen
Made of tropocollagen protein bundles.
Structure:
Tropocollagen → Collagen fibrils → Collagen fibers
Collagen doesn't stretch but unwinds slowly under tension.
Rebounds to original shape when tension is gone.
Thixotropy
Ground substance shifts between:
Viscous (gel) ↔ Sol (liquid)
Triggered by:
Heat
Movement
Hyaluronic Acid:
Lubricant in joints/muscles
Water magnet
Piezoelectricity
Pressure = small electrical charge
Stimulates fibroblasts, inhibits fibroclasts
Manual therapy boosts this effect
Aids healing, softening, loosening
Fascia as a Sensory Organ
Golgi Receptors
Pacinian Receptors
Ruffini Organs
Interstitial Myofascial Receptors
Intrafasical Smooth Cells
Smooth muscle in fascia, controlled by ANS
Produces fascial tone
Neurofascial loops ↓ sympathetic tone → ↓ fascial tone
Explains effects of manual therapy (↑ ROM, flexibility)
Motor Tone vs. Muscle Tone
Type | Cause | Pathology Example | Best Response |
Motor Tone | Tonic low-level muscle conntraction | Spasms / Cramps | Neuromuscular Techniques |
Muscle Tone | Fluid / Fascia Firmness | Frozen shoulder / Compartment Syndrome | Myofascial / Lymphatic Techniques |
Postural vs. Phasic
Muscle Type | Function | Fiber Type | Characteristics |
Postural | Hold body upright | Type l | High endurance, rich in mitchondria |
Phasic | Enable movement | Type ll | Powerful but fatigues quickly |
Hydrotherapy
The Skin - Access Organ for Circulation
Nerves: Sensory info + reflex responses
Blood Vessels: Exchange nutrients/waste
Lymphatics: Immune support + waste removal
Circulatory System:
Closed system
Change in one area affects circulation throughout the body
Six Ways to Manipulate Circulation
Direct Method
Happens in all applications
Immediate effect on superficial tissues
HEAT:
Dilates superficial blood vessels
COLD:
Constricts superficial blood vessels
Alternate Method (Hot + Cold)
Apply hot and cold in sequence
Types:
Cold alone (prolonged)
Heat followed by alternating hot/cold
Effects:
Direct local effect
Stimulates nervous system (ANS)
Hot before cold = stronger ANS response due to temp contrast
Decongests blood/lymph
Pain relief (analgesic)
One of the most powerful methods
Derivation & Retrostasis
HEAT – Derivation
Blood/lymph flow toward heat
Brings oxygen/nutrients
Draws blood away from congested areas
E.g. congested headache → hot foot bath
COLD – Retrostasis
Blood/lymph flow away from cold
E.g. congested headache → cold pack on neck
Affects distant (not local) areas
Collateral Circulation
Local application of heat/cold over a superficial artery
Alters flow in deeper artery from the same arterial trunk
Still uses derivation (heat) and retrostasis (cold) principles
Effects:
COLD → Constricts superficial artery
→ Increases flow through deeper artery (retrostasis)HEAT → Dilates superficial artery
→ Decreases flow through deeper artery (derivation)
Arterial Trunk
Influences all distal branches of the trunk
Useful when local application is contraindicated
HEAT to femoral artery
→ Dilates vessels in the leg
→ E.g. Diabetic leg ulcer – heat to femoral artery increases circulation without raising local metabolic stressCOLD to femoral artery
→ Constricts flow to leg
→ E.g. Foot injury – ice to femoral artery reduces bleeding
→ Combine with pressure for stronger hemostasis
Spinal Cord Reflex
Uses dermatomes or reflex pathways to affect distant organs
Can treat opposite side if direct treatment isn’t possible
E.g. One hand in a cast → treat the other
Guidelines for Reflex Reactions
Smaller area of application → more reflexive effect
E.g. Ice on inner thigh → affects uterus
Larger area of application → more direct/local effect
E.g. Full hot foot bath → draws blood (derivation)
More extreme temperature → stronger reflex + local effect
Very cold hand = local + brain response
Closer to target organ → stronger reflex effect
Cold to chest → affects heart directly
Hot foot bath → more derivative than reflexive
How to Treat Congestive Headache
Method | Application | Effect |
|---|---|---|
Direct | Cold to the head | Constricts vessels, reduces pressure |
Contrast (Alternate) | Hot/cold to head | Decongests + pain relief |
Derivative/Retrostatic | Hot to feet + Cold to neck | Draws blood away from head |
Collateral | Hot to face (maxillary artery) | Pulls blood from deeper brain arteries |
Arterial Trunk | Ice to carotid (one side only) | Reduces blood flow to head |
Spinal Cord Reflex | Cold to palms | Reflexively reduces head congestion |
Hydrotherapy Rules
Considerations for TX
Body Type, Age, and Health:
Body Type/Condition | Recommendations |
|---|---|
Thin | Avoid cold; use short, mild cold treatments after heat |
Large/Stocky | Avoid heat |
Athletic | Tolerate hot/cold treatments better |
Children & Elderly | Short treatments; moderate temperatures |
Healthy Individuals | Tolerate a range of therapies |
Aspect/Type | Tolerance/Recommendation |
|---|---|
Skin Tolerance | 0 - 44°C |
Normal Body Temperature | Torso: 32-35°C; Extremities: 26-27°C |
Contrast Treatments | Gradually change temperature extremes |
Optimal Immersion Temp | 36 - 38°C |
Cold Application | Minimum 10°C below skin temperature |
Short Cold | 10-30 seconds (up to 60 seconds for retro-static effect) |
Prolonged Cold | 15 minutes to 2 hours (for derivation) |
Hot Treatments | 20-30 minutes (up to 2 hours with blankets) |
Post-Hot Treatments | Short cold application afterward |
Location & Area Size:
Location/Area
Effect/Recommendation
Systemic Effect
Full body treatments (e.g., steam room)
Specific Organ/Area
Local applications, especially on reflexive areas (e.g., hands/feet)
Speed of Application:
Application Type
Recommendation
Heat Applications
Allow time for adaptation
Cold Applications
Ensure patient consent and explain sensations
Alternating Heat/Cold
Keep patient covered to prevent chills; stop if chilled
Post-Heat
Encourage a cool shower after full-body heat treatment
Post-Treatment
Treatment Type
Post-Treatment Recommendation
Short Cold Applications
Exercise or massage to warm tissues or bed rest
Full Body Hot Treatments
Full body massage or 30 minutes of rest
Time of Day Considerations
Time of Day
Recommended Treatments
Best Time for Treatment
Morning
Cold treatments, washings
5:00 AM - 7:00 AM
Early to Mid-Evening
Warm treatments (for relaxation)
Late Morning/Early Afternoon
Strong treatments (e.g., steam, sauna)
Early Morning or Late Evening
Mild treatments
Weak Patients
Treatments when the patient feels strongest
Night Shift Workers
Warm bath or cold foot bath before bed
Stage of Injury & TX
Injury Stage
Symptoms/Characteristics
Recommended Treatment
Acute (0-3 days)
Pain, swelling, elevated temperature, loss of motion
Ice to slow metabolism & prevent damage
Sub-acute (3-7 days)
Recovery phase, possible return of chronic conditions
Contrast treatments (heat 3-5 minutes, cold 10-60 seconds)
Chronic (7-10 days+)
Postural changes, imbalances
Heat treatments, contrast baths
Rules of Hydrotherapy
Rule Number
Rule Description
1
Always check for contraindications and proceed with caution if necessary.
2
Adapt treatment to the individual (temperature, duration, etc.).
3
Ensure client voids bladder before treatment.
4
Stay with the client or ensure contact can be made (e.g., bell).
5
Explain the treatment to the client beforehand.
6
Maintain a clean, calm, draft-free room. Ensure sanitary equipment.
7
Prevent client from chilling during or after treatment.
8
Use the coldest water possible (within tolerance) for cold treatments.
9
Use warm water as necessary (within tolerance), avoid excessive heat.
10
Ensure a minimum 10°C temperature difference for contrast treatments.
11
"More is NOT better" – Avoid extremes in temperature or duration.
12
Ask about comfort and check pulse as necessary, but minimize conversation.
13
Monitor pulse before, during, and after treatment, especially for prolonged heat.
14
Stop treatment if negative reactions occur and wait 3-4 hours before reapplying.
15
Short cold treatments: follow with active exercise. Prolonged cold/hot: rest then exercise.
16
Apply cold compresses to the head during hot or prolonged cold treatments.
17
Never apply cold to a cold body; warm the body first (e.g., warm foot bath).
Neck & Back Pain
Condition | Category | Details |
Degenerative Disc Disease | General Patogenesis |
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Thinning Disc Changes |
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Pain Presentation |
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Description of Degenrative Disc Disease |
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Age-Related Disc Changes |
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Condition | Category | Details |
Disc Herniation | Types of Herniation |
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Common Features |
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Demographics |
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Signs & Symptoms |
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Risk Factors |
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Acute Lumbar Lesions |
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Acute Neck Lesions |
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Condition | Description | Types (if applicable) | Signs & Symptoms | Risk Factors |
Spondylosis |
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Lumbar Spinal Stenosis |
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Spondylolysis |
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Spondylolithesis |
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Cauda Equina Syndrome |
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Ankylosing Spondylitis |
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Spinal Tumor
Includes osteoblastoma and spinal metastasis
Most common in lower thoracic and upper lumbar spine
Often spread from marrow tumors
Symptoms change as tumor grows:
Local back pain (at tumor site)
Altered sensation
Loss of bowel/bladder control
Pain worse at night
Muscle weakness
Aortic Aneurysum
Severe low or mid back pain not relieved by rest (in adults >30)
Accompanied by pallor, sweating, confusion
Asymmetrical pulses and blood pressure
Medical emergency
Gallstones
Triggered by fatty meals
Cramping pain in right upper abdomen (RUQ)
Pain may radiate to right scapula or shoulder
Attacks increase over time and may wake patient at night
Obstruction may require emergency surgery
Kidney Disease
Patient appears ill: sweating, nausea, vomiting, headache
Back or flank pain
May have fever
Severe tenderness over costovertebral angle (CVA)
Abnormal urinalysis
Pleuritis
Inflammation of lung’s pleural lining, often post respiratory infection
Sharp pain, worse with inhaling or coughing
Pain relieved by lying on affected side
Chest x-ray used for diagnosis
Condition | Cause | Location | Key Features |
Spondylosis | Degeneration w/ Age | Cervical & Lumbar | Disc thinning, osteophytes, nerve compression |
Spondylolysis | Stress Fracture of Pars | Lumbar (L5) | Pars defect, possible slippage risk |
Spondylolisthesis | Vertebral Slippage | Mainly L5/S1 | Vertebra slips forward, limited flexion |
Ankylosing Spondylitis | Autoimmune Inflammation | Spine & SI Joints | Stiffness, fusion, kyphosis |
Neuromuscular Conditions
Condition | Description / Types / Details / etc/ | Demographics | Signs & Symptoms | Risk Factors / Worsening Factors |
Myasthenia Gravis |
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Carpal Tunnel Syndrome |
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Thoracic Outlet Syndrome |
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Sciatica |
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Headaches |
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Migraine |
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Fibromyalgia |
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Myofascial Pain Syndrome |
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Fascial Disorders
Condition | Description | Demographic | Signs & Symptoms | Risk Factors |
Scleroderma |
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Ehlers-Danlos Syndrome |
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Compartment Syndrome |
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Dupuytren Contracture (Palmar Fasciitis) |
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Ganglion Cysts |
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Bursitis |
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Illiotibial Band Syndrome |
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Pes Planus (Flat Feet) |
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Pes Cavus (Caved Feet) |
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Plantar Fascititis |
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Hammer Toe |
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Bunion |
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