hot n cold Flashcards
where is the greatest effect superficial heating
1-2mm
how long for heat to reach 2cm
20-25 mins and only 1 deg increase
6 Therapeutirc effects of superficial heating
TIIRRS
Tissue healing increase ROM Infection control Relief of Pain Reduction of mm spasm Sedative
T/F heat in inflamattroy stage is beneficial
no, but mild heating after initial risk of further bleeding can stimulate early repair tho
T/F chronic inflammation can be treated w heat
true, with exercise and stretch
why does tissue healing happen with heat
inc blood flow, inc leukocytes, antidotes, nutrients oxygen
remove by products of inflammatory response
does superficial heat help sympathy or para sympathetic nervous system
Sympathetic
how does heat reduce mm spasm
reducing ischaemia associated with prolonged contraction
why joint increase in ROM after heat
analgesic effects increase tolerance of stretch
collagen tissue extensibitly increases at higher temperatures
therapeutic effets of heat depend on
extent of temperate increase modality, blood flow rate of which heated volume of tissue heated composition of tissue
what temperature do you see therapeutic effects
40-45C
how long can you tolerate 45 c, 50c, and 65s
1 hr
1 minute
1 secon
dangers of wax
don’t enter open wound
skin infections
acute inflammation
fire blanket extinguisher closer
types of hot packs
hydrocollator (wax), microwavable (gel), disposable (warmers)
what do you not do with hot packs
lie on it
how long does it take hot pack to get skin to its max
8 mins
do contrast baths or ice packs get more intramuscular temperature change
packs
T/F evidence of reduction in local oedema from contrast baths
no but evidence in decrease in mm soreness
ratio hot to cold
4:2 mins or 5:3 or 3:1
repeat 3-4 times
20-30 mins max
effects of whirlpool baths
water agitation stimulates skin
gently debrides wounds for learning of dirt/necrotic tissue
precautions with superficial heat
local burns
altered sensation
altered heat loss mechanism (obese)
infection
skin diseases (eczema)
open wounds
unreliable patients
indications for superficial heat
reduce pain increase ROM reduce mm spasm increase exercise tolerate fine motor movements
what is the extent of temperate change in tissues dependent on
rate of heat energy removal
amount of heat energy removal
body part
towel
size of area
duration
what types of cold recommended
crushed n cryo
does cold help metabolic reduction
current research says no
POLICE
Protect optimal loading ice compress elevation
therapeutic uses of cooling
promote healing pain reduction dec swelling dec mm spasm dec spasticity mm strengthening chronic inflammatory conditions
how to apply ice
check at 1 and 5 minutes
when can you do continuous immersion for cold
when can you do 1 minute
16-28 degs lets you do 15-20 minutes
10 lets you do 1 minute
any evidence begining in either hot or cold
none
benefits of ice towels
you can move or exercise while applied
switch towels 2-3 minutes
benefits of ice massage
improves mm function
greater intramuscular cooling than ice packs
dangers /contraindications for ice
ice burn
frostbite
open wounds
vasospasm (raynauds)
why open wounds bad w ice
may reduce vascular supply to area to delay repair
cold urticaria
degranuatlion of mast cells, release histamine
how to check skin testing
hot n cold sticks
and capillary fill rate
ice cube test
disadvantages of cold
increase stiffness
decrease tissue extensibitly
