Modalities Flashcards
heat is transferred from a warmer object to a cooler one (ratio depends on exposure time and temperature)
conduction
transference of heat through the movement of fluids or gasses
convection
heat energy transfer from one object through space to another object
radition
generation of heat from another energy form such as sound, electricity, and chemical agents
conversion
muscle temps can be reduced as deep as?
38.3- 4 cm
slight increase in temperature during cooling
hunting response
contain silicate gel in a cotton pad; 160-170 degrees
Moist Heat Packs
extremity tank, lowboy tank (full body), highboy (hip/leg) provides convection and conduction; 100-110
whirlpool baths
effective in treating chronic injuries to irregular areas of the body; 126-130
paraffin
facilitate increase temperature to increase blood flow to area without causing accumulation of additional edema; 100-110 to 50-60; 3:1: cold for 19-20 minutes
contrast bath
ultrasound heating: mild, moderate, vigorus
mild 1
moderate 2-3
vigorous 3-4
flow of fluid tissue compenents results in mechanical pressure wabes -alters cell membrance permeability to Na+ and Ca2+ ions
microstreaming
formation of gas filled bubbles that expand and compress due to pressure changes in fluid
cavitation
direct, galvanic current; usually low voltage
monophasic (DC) current
direction of current flow reverses itself one during each cycle
biphasic
usually contains three or more pulses grouped together; interrupted for short periods of time and repeat themselves at regular intervals
polyphasic (pulsatile) current
light and deep effleurage=
stroking
used to loosen heavy tissue trapes, lats or tricepa
petrissage (kneading)
often used around a joint where tissue is thin or unyeilding scars
friction
cupping, hacking, or pincing
tapotement (percussion)
rapid movement that produces a quivering or trebling effect
vibration
heat deep tissues by introducing a high frequenct electrical current
shortwave diathermy
