Exam 1 - 2 Flashcards
(218 cards)
4 ways that thermal energy is transmitted
conduction- heat from warmer to cooler - hot pack
convection - transfer of heat through movement of fluid or gases - hot tub
radiation - heat is transferred through space from one object to another - shortwave and microwave diathermy
conversion - heat generation from another source such as sound, electricity and chemical agents - tigerbalm and ultrasound
cryotherapy
cold packs or ice - principle of conduction where the body part comes in direct contact with the cold agent
magnitude of the temp change in the tissue will depend on 4
temp diff between the cold agent and the tissue
time of exposure
thermal conductivity of the area being cooled - muscle faster than fat
type of cooling agent
4 things that cold applications do
induces vasoconstriction and therefore limits bleeding - swelling
analgesic - decrease pain fibre transmission
reduce inflammation - decrease metabolic rate
reduces muscle guarding/spasm - slows pain that causes spasm, decreases metabolic rate so decreases the irritating chemicals
physiological effect of cold - 2
cold to skin at 10 degrees, vasoconstriction occurs - reduction of blood flow
hunting response - cold application for 15-30 mins causes a slight temp increase - fight response for hypothermia
4 contraindications for cold application
allergy to cold - jt pain, swelling and hives
poor circulation - diabetes
circulatory impairment - Raynauds phenomenon - vasospasm of digital arteries lasting for min/hrs that could lead to tissue death
wound opening
feeling of ice application
Cold - 0-3 mins
Burning - 2-5 min
Aching - 4-7 mins
Numbness 5-12 mins
should you wrap ice
no - hunters response - but dont put chemicals directly on skin
cryotherapeutic methods - 4
conduction
ice massage - frozen ice cups for small body parts
cold water/ice water immersion - gravity dependent use after initial acute stage
ice packs - with pressure in acute stage
vasocoolant sprays - freeze towel in a desert
- chemicals used to reduce muscle spasms/cramps to reduce nerve ending signals
electrolyte for cramps
not much
Thermotherapy - 2
application of heat to injuries
after initial inflammatory response has subsided after first 3 days
5 physiological effects of heat
analgesic effects by gate control
vasodilation to increase bloodflow, circulation and removal of metabolic wastes
decrease muslce spasm caused by ischemia, decreases muscle spindle activity and increases blood flow to area
increase ROM - increases elasticity of lig, capsule, and muscle
increase local tissue temp
for heat physiological responses to occur
heat must be absorbed into tissue to increase molecular activity - once absorbed it spreads to adjacent tissues
5 contraindications of heat
loss of sensation to area immediately after injury - acute inflammatory state decreased arterial circulation eyes/genitals - gonads will die abdomen during pregnancy
moist heat therapies - 4
moist heat packs -
whirlpool baths
paraffin bath - wax
contrast bath
moist heat packs
conduction and convection
- relaxation and reduction in pain - spasmischemia - hypoxia pain cycle - hydroxalator pack - ongoing isometric
whirl pool baths
- chronic for pitted edema - milk massage after heated - decrease swell
paraffin bath
fighters and their knuckles
chronic extremity injuries
contrast bath - 2
alternating vasoconstriction and vasodilation - ice and heat - 10-12 mins, hr/45min to remove existing swelling
new blood assists in removing edema by unclogging and vasculature
knee - 4
tibiofemoral jt
frequently injured
complex jt
poor stability
knee - type of jt and 4 movements
synovial, modified hinge jt
flex/ext/int rot/ext rot
3 parts of the knee
femur - not congruent with tib,
tibia plateau
patella - sesamoid bone
Fibula in regards to the knee
not involved and not weight bearing
site for muscle/lig attachment
sup tibiofib jt - head of fibula and LCL
posterolateral knee injuries
patella - 3
largest sesamoid bone in the body
lined with hyaline cartilage
allows stronger muscle pull of quads due to changing the angle of the patellar tendon