Lecture 2 (cold modalities) COPY Flashcards
Can coldness be taken away from an object?
No, coldness cannot be added or taken away - temp change is due to removal or addition of heat (makes sens molecules speeding up or slowing down)
Do cooling therapy modalities work via conduction or convexion?
Conduction
What are our 4 cold modalitites?
1) Ice pack
2) Immersion cold / ice bath
3) Cryo cuff (game ready)
4) Ice massage
Define convection
Heat is removed when the skin is in direct contact w/ moving fluid particles
think ice bath
vasocoolanto spray - evaporation
pt recieves heat modalitity and on a different treatment day recieves cold modalitity. On which of those days did it take more time to return to baseline after reciving treatment? Why?
Heat returns to baseline more quickly
this is because w/ cold we have a decrease in BF so temperature exchange happens slower (because blood is waht does temperature exchange. However, w/ heat therapy we have increased BF meaning that temperature change can happen more quickly returning us back to baseline faster (vasodilation).
What increases bloodflow, heat therapy or cold therapy?
Heat
Why would we avoid strength testing immeditely after heat / cold therapy?
Because those results would be skewed and wouldnt be their normal baseline
KNOW: normally musclar performance is reduced w/ the application of cold therapy (due to decreased BF) - however it may be increased within the first 5 minutes of cold treatment (epi/nor)
What returns to homeostasis faster, muscle tissue or adipose?
muscle
How long does it take for fully chilled m tissue to return back to normal after cold treatment
2-3 hours
So we should ice after treatment or they might have reduced BF
KNOW: w/ ice we have reduced proprioception / somatosensory stuff (do to reduced nerve speed velocity)
Should you do balance activities before or after cold treatment?
Before - because the cold treatment will make them lose proprioception aka falling more easily because they don’t know where they are in space
When should you start using ice on injury? Why
24-48 hours after - because thats when we start to have the most edema
analgesic means
reducing pain
Why might ice be good for an injury? Why might it be bad?
Good = decrease swelling
Bad = less blood flow = less healing
What 3 things should we do for edema
Ice
Compression
Elevation
(NOT HEAT)
Should you take anti inflammatory meds for inflammation?
No
We don’t want to impede healing process (unless its too extreme and the inflammatory process is out of contorl)
What happens to peripheral nerves when they get chilled (psychologically)
It takes more to take them to deporlize - which is why they’re numb - they arent firing anymore (can’t sense as much input)
What happens to nerve conduction velocity w/ cold theapy?
Slows it (decreased proprioception)
What happens to pain threshold w/ cold treatment? Why?
Increases
Because we can’t feel as much - so of course it won’t hurt as bad
What happens to motor performance when someone is exposed to cold therapy
Decreases
KNOW: Nerves that are superifical and exposed to ice may experience a nerve block. We don’t want to do this - we want to slow down nerves but not block them.
KNOW: Before applying cold ask “Do you have any disorders or diagnoses that are going to affect your tolerance to cold”