superficial cold - intro to cryo Flashcards

1
Q

what is cryotherapy

A

use of ice or cold for therapeutic purposes

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2
Q

what are the effects of cold in the body

A

hemodynamic
neuromuscular
metabolic

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3
Q

explain the initial general hemodynamic effect of cold

A

decrease in temp leads to initial decrease in blood flow

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4
Q

relate dec in temp and blood viscosity

A

dec in temp will inc blood viscosity = dec blood flow

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5
Q

relate dec in temp and vasodilators

A

dec in temp - dec release of histamine and prostaglandin - vasoconstriction = dec blood flow

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6
Q

relate dec in temp direct effect to cutaneous receptors

A

direct: dec in temp - cutaneous receptors will cause smooth muscle of bv to contract - vasoconstriction = dec blood flow

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7
Q

relate dec in temp indirect effect to cutaneous receptors

A

indirect: dec in temp - cutaneous receptors will pass impulse to DRG - inc in sympathetic adrenergic activation - vasoconstriction = dec blood flow

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8
Q

explain the later hemodynamic effect of cold

A

longer application of cold mga beyond 5-10 mins na continuous = CIVD

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9
Q

what is the hunting response

A

physiologic reax of the SNS - cycle of vasoconstriction and dilation of bv

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10
Q

what are the neuromuscular effects of cold

A

dec NCV
inc pain threshold
altered muscle strength
dec spasticity
facilitation of muscle contraction

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11
Q

further explain the dec of NCV due to cold

A

cooling = slower opening of ions kaya bumabagal

more effective on myelinated and small fibers (a-delta) - acute pain
less effect on unmyelinated and large fibers

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12
Q

further explain the inc of pain threshold due to cold

A

cold will cause gate control theory or interrupt the pain-spasm cycle

reduce NCV of sensory nerve and reduce edema

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13
Q

explain the significance of the pain-spasm cycle

A

usually pain will cause muscle guarding hence spasm - spasms will cause lactid acid formation or cramps = more pain tas ulit lng cycle

so pag may cold ma bbreak yung cycle nasslow yung NCM hence less pain

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14
Q

further explain how cold reduces edema and dec pain

A

reduced blood flow will reduce edema which liliit sha and di n sha mag ccompress sa free nerve endings

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15
Q

further explain the altered muscle strength due to cold

A

pag less than or 5 mins lang = inc straight bcs nasa temporary state of contraction yung muscle

pag more than 5-30 mins = dec straight bcs it inhibits contraction temporarily

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16
Q

further explain the dec in spasticity due to cold

A

spasticity is due to inc gamma motor activity

so initially cold will dec gamma motor activity and then later will dec afferent spindle and GTO activity later

17
Q

further explain facilitation of muscle contraction due to cold

A

quick ice facilitates alpha motor neuron - for flaccid muscles sa mga pediatrics

18
Q

further explain the dec metabolic rate due to cold

A

it slows done to be able to control inflammation

19
Q

further explain the dec metabolic rate due to cold and how it is useful for OA

A

it temporarily inhibits the activity of cartilage-degrading enzymes

20
Q

further explain the dec metabolic rate due to cold and how it is useful for RA

A

reduces level of histamine in the blood

21
Q

what are the indications for cryotherapy

A

inflammation control - DOMS

edema control

pain control

modify spasticity

managing multiple scelorosis

facilitation

cryokinetics and cryostretch

acute burns

treatment to joint mob, deep friction massage, strenuous workouts and RICE

22
Q

what are the contraindication for cryotherapy

A

cold hypersensitivity or cold induced urticaria

cold intolerance - relative/absolute

cryoglobulinemia

paroxysmal cold hemoglobinuria

raynaud’s disease

over a regenerating of peripheral nerve

over an area w PVD

23
Q

what is raynaud’s disease contraindicated

A

small bv is distal areas will vasoconstrict = cyanotic changes

24
Q

Why is ice over a regenerating peripheral nerve contraindicated

A

ice pack will reduce NCV and cause vasocontriction which delays regen of nerves

25
Q

what are the precautions for cryotherapy

A

over the superficial main branch of a nerve

over an open wound

hypertension

poor sensation or mentation

extreme ages of patients

26
Q

why is over the superficial main branch of a nerve a precaution

A

might cause nerve conduction block

27
Q

why is poor sensation or mentation
a precaution

A

bcs no feedback from pt baka na ccold burn na or what

28
Q

why is extreme ages of patients
a precaution

A

ginawin mga oldies

29
Q

what are the adverse effects of cold

A

tissue death from ischemia

frostbite

30
Q

what are the 4 stages of sensation of cryotherapy

A

CBAN

cold
burning
aching
analgesia/numbness

31
Q

what is cryotherapy usually used in conjunction with

A

PRICES or POLICE

32
Q
A