Dr. Rashi Thermotherapy(1)
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Transcript of Dr. Rashi Thermotherapy(1)
Human perception Absence of heat Heat energy is being transferred away from the
body
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METHODS OF APPLICATION
Local immersion
Cold Packs
Ice towels
Ice massage
Cold compression units
Evaporating sprays
Contrast bath
Cryokinetics
Local changes at the cooled site General systemic changes- when heat
regulating mechanism is activated
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Immediate vasoconstriction of the blood vessels- become pale
Increased blood viscosity
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COLD INDUCED VASODILATATION The immediate vasoconstriction response to
cold is a consistent phenomenon however, when cold is applied for longer periods of time or when the tissue temperature reaches less than 10 deg. C (50 deg. F), vasodilation may occur
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Hunting response cold-induced vasodilatation of finger immersed
in ice water, measured by skin temperature change
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Hunting response is mediated by an axon reflex in response to the pain of prolonged cold or very low temperatures- release of Histamine like substance
OR Caused by inhibition of contraction of the
smooth muscles of the blood vessel walls by extreme cold
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Protect tissues from damage Due to prolonged cooling and relative ischemia
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Reduced Metabolic Rate Reduces oxygen uptake Reduced production of metabolites Reduced cellular activity Slowed healing
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Pain reduction Spasticity treatment
Cold reduces conduction velocity of peripheral nerves
Delayes synaptic transmission
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Initial decreased muscle strength (viscosity n metabolic rate)
Increase in strength after 1 hour of ceasation
5 min of ice- increases isometric strength
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Diminished dexterity Decrease in velocity of movement Decrease in tapping speed
Cause- NCV
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Recent injuries Pain Spasticity Muscle spasm Muscle strengthening Chronic edema
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Limits bleeding by vasoconstriction, blood viscosity
Dec pain nerve irritants Red metabolic rate and secondary cell necrosis Red joint effusion
PRICE
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Increased pain threshold Pain spasm pain cycle Reducing blood flow Decreasing rate of reaction due to acute
inflammation Controlling post injury edema formation Release of endorphins and enkephalins Reduces pain from compression of nerves
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SKIN- CNS stimulation- facilitate muscle contraction
MUSCLE-dec gamma motor neuron activity-dec muscle spindle discharge
More viscid- allows less rapid stretching
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Shorter application-
Initial inc- facilitation of alpha motor neuron pool
Sympathetic system stimulation
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Prolonged intensive cooling-
More viscid More energy on contraction Weakness
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Decreased NCV Increased pain threshold Altered muscle strength Decreased spasticity
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Cold can decrease the conduction velocity of both sensory and motor nerves
A -delta fibers, are small diameter, myelinated, pain-transmitting fibers, demonstrate the greatest decrease in conduction velocity in response to cooling
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