Intro To Physical Agents Flashcards
energy and materials applied to patients to assist in their rehabilitation.
Physical Agents
Physical Agents include
heat, cold, water, pressure, sound, electromagnetic radiation, and electrical currents.
Categories of Physical Agents
Thermal, mechanical, Electromagnetic
Thermal agents include
superficial-heating agents, deep-heating agents, and superficial-cooling agents
Mechanical agents include
traction, compression, water, and sound.
Electromagnetic agents include
electromagnetic fields and electrical currents.
Physical Agents aka
Therapeutic Modalities
Physical Modalities
Biophysical Agents
Electrophysical Agents
Represent the admiration of thermal, mechanical, electromagnetic, and light energies for a specific therapeutic effect
Physical Agents
Represent a group of interventions that are adjunctive components of a more comprehensive therapy plan
Physical Agents
Clinical application of physical agents
Modulation of pain
Alteration of muscle activation
Decreasing inflammation and facilitating tissue healing
Increasing tissue extensibility
common chief complaint
Pain
Goals in pain modulation
Increasing blood flow
Decreasing swelling
Reducing compression
Discomfort/ protective signal
Unpleasant sensation
Reliable indication of the location of the injury
Pain
a-delta fibers neurons
Unipolar at DRG
c fibers neurons
Unipolar at DRG
a-delta diameter
small
c fibers diameter
smallest
a-delta fibers myelination
myelinated
c fibers myelination
unmyelinated
a delta fibers transmission of action potential
30 m/s
c fibers transmission of action potential
1-4 m/s
a-delta fibers pain transmitted
sharp, stabbing, pricking
c fibers pain transmitted
dull, throbbing, aching, burning
a-delta fibers description
localized
c fibers description
diffusely localized
fibers of Fast acting pain
A delta fibers
fibers of Slow acting pain
C fibers
Inhibitory to substantia gelatinosa
C fibers
Continuous lang yung pain
Throbbing and burning
Diffusely localize
C fibers
Facilitatory to the substantia gelatinosa
A delta fibers
Sharp, pricking
Could be localized
A delta fibers
Pain is modulated by endogenous opioid-like peptides
ENDOGENOUS OPIOID SYSTEM
Pain is modulated by endogenous opioid-like peptides called
opiopeptins or endorphins
PAIN RELIEF THEORIES
GATE CONTROL
ENDOGENOUS OPIOID SYSTEM
ALTERATION OF MUSCLE ACTIVATION
FACILITATION
INHIBITION
Depolarization of peripheral n. to recruit more motor units
FACILITATION
Decrease motor nerve conduction or synaptic activity
Reduction of pain
INHIBITION
Tissue Healing Process
Inflammation
Proliferation
Maturation
Goal during inflammatory phase
-Decrease blood flow and metabolic activity to reduce swelling
-Reduction of pain
-Minimize duration and residual effects of inflammatory phase
Goal during proliferative phase
Enhance blood flow and cellular activity to promote repair of damages tissue
Goal during Maturation Phase
-Influence maturation and organization of collagen
-Restore functional integrity
Inc. tissue extensibility through
Heat
facilitates elongation and deformation of collagen
Heat
Types of Physical Modality
Thermal, Electromagnetic, Mechanical
Agents that increase or decrease tissue temperature
Thermal
Types of thermal
Cold or cryotherapy
Hot Packs
Cold or cryotherapy
Ice or cold pack
Vapocoolant spray
Cold whirlpool
Hot Packs
Hot moist
Paraffin wax bath
Methods of Heat Energy Transfer
Conduction, Convection, Evaporation, Conversion
Treatments that transfer heat through Conduction
Hot moist pack, Paraffin wax bath, ice/ cold pack
Treatments that transfer heat through Convection
Cold whirlpool, fluidotherapy
Treatments that transfer heat through Evaporation
Vapocoolant spray
Treatments that transfer heat through Conversion
Ultrasound and Diathermy
Mechanical to electrical energy
Direct Piezoelectric Effect
Electric to mechanical
Reverse/Converse/Inverse Piezoelectric Effect
Agents that apply electrical current or electromagnetic radiation to induce physiological effects
Electromagnetic
Agents that apply force to inc. or dec. pressure on the body
Mechanical
Mechanical Intervention
Water, Mechanical Traction, Compression, Pressure, Sound
Water
Hydrotherapy
Mechanical Traction
Intermittent cervical traction (ICT) or intermittent lumbar traction (ILT)
Compression
Intermittent pneumatic compression
Used for swelling/edema
Pressure
Extracorporeal shockwave therapy
Sound
Ultrasound
Continuous or pulsed mode
Electrical to mechanical
Crystal in ultrasound vibrates = soundwaves = heat
Relative contraindications
Precaution
Conditions or factors in which a pt is at risk of experiencing an adverse event
Precautions
Proceed with caution
Precautions
Old age
Precautions
Impaired Sensation
Precautions
Pregnancy
Precautions
Unconcious
Precautions
Young age
Precautions
Absolute contraindications
contraindications
Conditions or factors in which treatment over a specific body region should not be applied
contraindications
Increased risk of adverse effects
contraindications
cancer
contraindications
fever
contraindications
Electronic implants
contraindications
Hemorrhagic conditions
contraindications
Active deep venous thrombosis
contraindications
Documentation
Modality
Body region
Patient position
Parameters (specific to the modality)
Rationale
Transfer of energy to a patient to increase
or decrease tissue temperature
THERMAL AGENTS
Superficial Heating Modalities
❑Hot moist packs / HMP (kept in
hydrocollator tank)
❑Paraffin wax bath / PWB
❑Fluidotherapy
➢ Deep Heating Modalities
❑Ultrasound (US)
❑Diathermy
❑Shortwave Diathermy (SWD)
❑Microwave Diathermy (MWD)
Apply energy in the form of
electromagnetic
radiation or an electric
current
ELECTROMAGNETIC AGENTS
energy is
transmitted by oscillatory motion in the
form of -
Electromagnetic Wave
__ wavelength → __ frequency of
oscillation
Shorter, higher
representation
of various wave energies
Electromagnetic spectrum
energy is
transmitted by oscillatory motion in the
form of ___
Electromagnetic Wave
Electromagnetic Wave
ultraviolet radiation, diathermy,
LASER, infrared radiation
use of electrical
current to induce muscle contraction,
changes in sensation, edema reduction and
tissue healing
Electrical Stimulation
Electrical Stimulation
❑Neuromuscular electrical stimulation
❑Transcutaneous electrical nerve stimulation
Inflammation Phase Duration
4-6 days
Proliferation Phase Duration
4-24 days
Remodeling Phase Duration
21 days -2 yrs
Inflammation Phase
Vasoconstriction - vasodilation - blood clot - phagocytosis
Proliferation Phase
Epithelialization - fibroplasia - wound contracture - neurovascular
Maturation Phase
Collagen cytosis - collagen fiber orientation - healed injury