450 Therapuetic Modalities Flashcards
Types of Modalities
cryotherapy, electrical stimulation, ultrasound. massage. traction, diathermy, lasers and magnets
Methods of Heat Transfer
conduction convection conversion radiation evaporation
Conduction
heat transfer from warmer object to cooler one
depends on temperature, exposure time, and tissue thickness
i.e. moist hot pack. paraffin bath, ice pack, cold pack
Convection
transfer of heat through mvmt of fluids or gases
depends on temp, speed, conductivity impact
i.e. whirlpools and fluidotherapy
Radiation
heat transferred from one object through space to another
depends on intensity,size, distance, and angle
i.e. shortwave diathermy, infrared heathing, and ultraviolet
Conversion
changing nonthermal energy to thermal energy(sound,electric,chemical)
depends on power
i.e. ultrasound and diathermy
Evaporation
change b/t liquid to gas state
i.e. vapocoolant spray
Wavelength (km, m,angstorms)
distance b/t one point on a wave to next wave
as wl increases frequency decreases
Frequency ( HZ or MHZ)
wave oscillations in a second
frequency increases, wavelength decreases
Electromagnetic spectrum
visible/nonvisible refracted light
rely on electromagnetic energy that can be absorbed, refracted, reflected, or transmitted
Reflect
bend back from surface
Transmit
penetrate deeper tissue
Refract
change direction or bend away
Absorb
infiltrate deeper tissue
Electromagnetic Modalities
infrared, biofeedback, iotophoresis, ultraviolet, electrical stimulation, diathermy, lasers
Infrared modalities
cold pack, whirlpool, paraffin, hydrocollator, infrared lamp
Acoustic Modalities
ultrasound- high frequency, molecular collision for energy transfer
Arndt-Schultz Principle
absorbed energy must be sufficient to initiate physiological effect
Law of Grotthus-Draper
unabsorbed energy is transmitted deepers
Cosine Law
based on angle of tx, cosine of tx anle dictates significance of heating i.e. diathermy
perpendicular 100%
45 degree 71%
Inverse Square Law
based on distance of tx, decreased distance increases intensity by 1/3
Pain Response
behavioral, cognitive, cultural, emotional, sensory
Forms of pain
acute, chronic, radiating, referred, trigger point, visceral
Sclerotomic
deep somatic track that is innervated by same signal spine nerve, pain from all tissues innervated by same nerve
Somatic pain
pain from the skin and deep tissues
Visceral pain
pain from internal organs
Mechanoreceptors
pressure, meissner, pacinian, and merkel corpuscles
Nociceptors
pain, free nerve endings
Proprioceptors
tension, muscle spindles and golgi tendon organs
Thermoreceptos
temperature, Ruffini corpuscles and krause end bulbs
Afferent pain transmission
dorsal horn, periphery to brain
Efferent pain transmission
ventral horn, brain to periphery
First-order neurons pain transmission
periphery to dorsal root ganglion
Second-order neurons pain transmission
spinal cord connecting to thalamus
Third-order neurons pain transmission
thalamus connecting to cerebral cortex
A-B nerve fibers
fast size and speed; myelinated
A-o nerve fibers
moderate size and speed, myelinated
C nerve fibers
small, slow, unmyelinated
Gate Control Theory
A-B fibers travel faster to the dorsal horn and stimulate inhibitory neurons, substania gelatinosa does/doesnt send sensation to second order afferent, T cell takes sensory info to brain: CLOSE GAIT STIMULAT A-B fibers to block other fibers transmission
Gate Control Execution
Ascending Pathway
Modalities: Sensory level TENS, moist heat pack, whirl pool, ice, some massage
Central Biasing Theory
Brain impulses (thalamus) carried to dorsal horn, “close the gate” to painful stimulus, midbrain adn pons/medulla stimulate release of enkephalin in dorsal horn
Central Biasing Execution
Pathway descending
modalities: accupressure, TENS, point stimulators, strong motor electrical stimulation
Endorphins and Dynorphin Theory
not clearly understod, hypothalamus influences PAG in brainstem, B endorphin released from brainstem, dynorphin found in PAG
Endorphins and Dynorphin Theory
Pathway Descending
Selected modalities: noxious electrical stimulation, acupuncture, electroacupuncture
Safety in using Therapeutic Modalities
equipment used/maintained in appropriate manner
follow manufacturer recommendations
failure to follow = NEGLIGENCE