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ATTR 362: Thermal Modalities

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by

Jess Edler

on 4 September 2015

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Transcript of ATTR 362: Thermal Modalities

THERMAL MODALITIES
Cryotherapy
Thermotherapy
How do thermal modalities work??
Types of energy transfer:

1. Conduction
2. Convection
3. Radiation
4. Evaporation
Conduction
Transfer of heat between 2 touching objects
Modalities????
Convection
Transfer of heat by movement of a medium
Modalities??
Radiation
Transfer of energy through radiant energy
Modalities??
Evaporation
Change from liquid state to gaseous state requiring thermal energy to be lost
PADLET CHALLENGE
In one sentence explain Fourier's law and how it applies clinically
Thermoreceptors
Fun Fact: Every 1.8 deg F change in tissue temp results in a 13% increase or decrease of the tissues' metabolic rate
Sensation of heat or cold is noticeable, the primary benefit is altering cell metabolism
Importance of tissue depth
Tissue Thermal Conductivity
Skin 0.96
Adipose 0.19
Muscle 0.64

What does this mean??
Higher values = more energy transmission
Ice bags (packs)
Equipment:
Wetted ice (in towel)
Crushed/chipped ice in bag
Chemical cold packs
Gel pack
Liquid pack
Indications:
acute injury/inflammation
prevention of swelling
decrease muscle spasm
Tx Duration:
Dependent on tissue depth
Usually 15-20 mins
Cold compression
Equipment:
Cryocuff
Gameready
Ice
Water
Indications:
acute injury/inflammation
prevention of swelling
decrease muscle spasm
Tx Duration:
Dependent on tissue depth
Usually 15-30 mins
Ice immersion
Equipment:
Ice
Bucket
Water (50 to 60 deg F)
Toe cap
Indications:
acute injury/inflammation
prevention of swelling
decrease muscle spasm
Tx Duration:
Dependent on tissue depth
Usually 15-20 mins
Vapocoolant Sprays
Equipment:
Flouri-methane, nonflammable substance released from pressurized canister
Indications:
acute injury/inflammation
prevention of swelling
decrease trigger point
Tx Duration:
3-4 sweeps w/ time to rewarm between
Ice cup massage
Equipment:
Cup
Ice (water)
Towel
Indications:
acute injury/inflammation
prevention of swelling
decrease muscle spasm
Tx Duration:
Dependent on tissue depth
Usually 5-15 mins or until ice runs out
Contraindications

Open wounds
Circulatory insufficiency
Cold allergy
Hypersensitivity
DVT
Cardiovascular disease
Suspected fractures (ice cup massage, vasocoolant sprays, or cold compression
Review of the Evidence
Wetted ice is better than crushed ice only
Vasocoolant sprays not supported
Ice and compression w/ ace wrap = better than gameready/cryocuff
Moist Heat Pack
Equipment:
Silica-filled packs
Cover
Indications:
subacute/chronic inflammation
pain reduction
subacute/chronic muscle spasm
increase ROM
increase muscle elasticity
Tx Duration:
Usually 20-30 mins
Dependent on tissue depth
Hot whirlpool
Equipment:
Whirlpool
Warm water (90-110 deg F
Indications:
increase ROM
subacute/chronic inflammation
muscular relaxation
decrease pain or muscle spasm
Tx Duration:
20-30 mins
Paraffin Bath
Equipment:
Paraffin wax (118-126 deg F)
Heating unit
Indications:
Subacute/chronic inflammatory conditions
Increase ROM
Tx Duration:
15-20 mins
Contraindications
Open wounds
Skin infections
Acute injuries
Poor thermoregulation
Peripheral vascular disease (can't dissipate heat)
What does the evidence say???
Only works on Gate Control Theory
Decreases pain
Full transcript