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Phys Agents Final Exam > Estim Muscle Contraction > Flashcards

Estim Muscle Contraction Flashcards

1
Q

T/f Muscle contractions produced by ES are not identical as physiological contractions

A

TRUE

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2
Q

What are the six things ES contractions can do

A

Strengthen muscle
Improve muscular endurance
Improve cardiovascular health
Prevent muscle atrophy
Reduce spasticity
Help restore function

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3
Q

In an innervated muscle, what fibers are physiologically activated first

A

Slow twitch type 1 fibers

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4
Q

In an innervated muscle what fibers are electrically stimulated second ?

A

Fast twitch type II muscle fibers

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5
Q

T/f during a contraction, physiologically the contractions are smooth

A

True

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6
Q

T/f during a contraction, electrically the contractions are rapid and jerky

A

True

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7
Q

What characteristics type I muscle fibers ?

A

Small
Slow twitch
Produce dec. force contraction
More resistant to fatigue and atrophy

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8
Q

What characteristics are type II muscle fibers

A

Larger
Fast twitch
Produce inc force and quicker contraction
Fatigue rapidly
Prone to weakening and atrophy with disuse

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9
Q

What effect on muscle fibers does ES have ?

A

Strengthen muscle fibers that have been atrophied from disuse

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10
Q

In a denervated muscle what happens when es is applied

A

Muscle no longer contracts physiologically or with electrical stimulation

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11
Q

What can ES do to a denervated muscle nerve growth

A

Slow it down

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12
Q

What are some clinical applications to apply ES for muscle contraction

A

Orthopedic conditions
Cardio respiratory
Healthy adults and athletes
Muscle coordination and motor control for patients w neurological conditions

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13
Q

What is AMI

A

Atherolgenic muscle inhibition, causes shut down of muscle

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14
Q

When a person gets a TKA, the quads shut down, what fibers atrophy?

A

Type II fibers

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15
Q

How can patients with OA benefit from estim

A

Decrease pain
Increase strength
Improve walking
Improve climbing

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16
Q

How Can patient who have RA benefits from estim

A

Improve strength
Improve endurance

17
Q

Patients who had heart failure and applied NMES to their quads benefited from what ?

A

Peak O2 uptake
6 min walks test distance
Muscle strength
Depressive symptoms
Quality of life

18
Q

What athletes improves strength from estim

A

Rugby players
Hockey players
Tennis players
Soccer players
Gymnasts
Basketball players
Vollyball players
PE students

19
Q

Following a stroke, NMES can do what?

A

Reduce shoulder subluxation
Reduce spasticity

20
Q

Other than ES applied through current and pads, is there other forms it can be applied ?

A

Yes there is different divides such and hand devices, knee devices

21
Q

What neurological disorders can NMES benefit

A

Spinal cord injury
Multiple sclerosis
Cerebral palsy
Dysphagia
Urinary incontinence

22
Q

What is a precaution for ESTIm for muscle contraction .

A

DOMS

23
Q

When applying EStim how should the patient be positioned

A

Never want them laying on the electrodes

24
Q

Where do the electrodes get placed for muscle contractions

A

One electrode over motor point
One on the muscle to be stimulated

25
Q

What size muscles are short durations good for

A

Small muscles

26
Q

What size muscles are longer durations good for

A

Larger muscles

27
Q

If ES is uncomfortable for a patient what is the first thing you change

A

Pulse duration

28
Q

If pulse duration needs to be decreases what needs ti be increased

A

Amplitude or intensity

29
Q

When using low frequency on a patient (20pps) what will the twitches look like

A

Tiny little twitches not full contractions

30
Q

As frequency increases to 30-50, what happens to the contractions

A

More twitches, smooth comtractions

31
Q

For edema control with muscle contraction, what kind of electrodes should you use

A

Self adhesive electrodes

32
Q

For edema control with muscle contraction ES where should the electrodes be placed

A

On muscle around main veins

Phys Agents Final Exam (9 decks)

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