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Electro > Biofeedback > Flashcards

Biofeedback Flashcards

1
Q

What is biofeedback?

A

The use of electronic instrumentation to provide objective information (or feedback) to an individual about a physiologic function or response so that the individual becomes aware of his or her response

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2
Q

How is biofeedback used in clinical practice?

A

It is used to help the patient develop greater voluntary control following injury or dysfunction

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3
Q

Feedback includes information related to…

A

Sensations associated with movements itself

Result of the action relative to some goal or objective

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4
Q

Intrinsic Feedback

A

Kinesthetic, visual, cutaneous, vestibular, auditory

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5
Q

Extrinsic Feedback

A

Knowledge of results, verbally, mechanically, electronically

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6
Q

EMG Biofeedback

A

Sensitive, objective, accurate and quantitative

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7
Q

Peripheral Skin Temperature

A

Indicates vasoconstriction and vasodilation

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8
Q

Finger Phototransmission

A

Indicates vasoconstriction and vasodilation

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9
Q

Skin Conductance Activity

A

Indicating sweat gland activity

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10
Q

Electroencephalograph

A

The brain’s spontaneous electrical activity over a period of time

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11
Q

Electromyographic Activity

A

Indicating electrical activity during muscle contraction

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12
Q

The pattern of MU recruitment depends on…

A
  • Inherent properties of specific motor neurons
  • Force required during the activity
  • Speed of contraction
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13
Q

Biofeedback measures…

A

Electrical activity associated with muscle contraction (NOT the actual muscle contraction)

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14
Q

Uses of Biofeedback

A

Anxiety or stress, asthma, chemotherapy side effects, chronic pain, constipation, high BP, incontinence, IBS, Raynaud’s

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15
Q

Indications for Biofeedback

A

Muscle re-ed, regaining N/M control, increasing isometric/isotonic strength, decreasing muscle guarding, pain reduction, relaxation of muscle spasm, psychological relaxation

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16
Q

Rectification

A

Creates a pulsed direct current that can then be smoothed and integrated

17
Q

Smoothing

A

Eliminates the high-frequenxy fluctuations that are produced

18
Q

Integrating

A

Measuring the area under the curve for a specific period (forms quantification of EMG)

19
Q

Patient Appropriate?

A
  1. Do they have a motor impairment that would suggest biofeedback would be beneficial?
  2. Do they have the ability for voluntary control?
  3. Are they motivated and cognitively aware?
20
Q

Benefits of Biofeedback

A

non-invasive, may reduce/eliminate need for meds, treatment alternative for those intolerant of meds, option when meds haven’t worked well or during pregnancy, helps people take charge of their health

21
Q

Biofeedback is what type of feedback?

A

Visual and Auditory

22
Q

Sensitivity for Muscle Relaxation

A

High

23
Q

Sensitivity for Muscle Re-ed

A

Low

24
Q

Unique uses for Biofeedback

A

Pelvic floor dysfunction, stress urinary incontinence, fecal incontinence, ED

25
Q

T/F: Biofeedback units measure physiologic processes.

A

False

26
Q

T/F: The reference electrode has no charge associated with it.

A

True

27
Q

T/F: A high signal gain means the biofeedback unit has a low sensitivity for muscle activity.

A

False

28
Q 
Some biofeedback instruments measure peripheral skin temperature. Which of the following do they also measure?
A. Finger phototransmission
B. Skin conductance activity
C. Electromyographic activity
D. All of the above
A

D

29
Q 
Biofeedback electrodes should be placed as near to the muscle belly as possible. They should also be placed \_\_\_\_\_\_\_ to the muscle.
A. perpendicular
B. parallel
C. obliquely
D. none of the above
A

B

30
Q 
What is the principle that allows the biofeedback unit to eliminate common noise between active electrodes?
A. CMRR
B. filtering
C. rectification
D. integration
A

A

31
Q 
Raw EMG must be converted to a visual or audio format. What is the order of the conversion?
A. integrate, rectify, smooth
B. smooth, rectify, integrate
C. rectify, smooth, integrate
D. rectify, integrate, smooth
A

C

32
Q 
The goal of using biofeedback in muscle reeducation is to elicit a:
A. twitch response
B. muscle contraction
C. decrease in pain
D. relaxation
A

B

33
Q 
How long should the average biofeedback period for a single muscle be to avoid fatigue and boredom?
A. 1-2 minutes
B. 2-5 minutes
C. 5-10 minutes
D. 10-15 minutes
A

C

34
Q 
What factor(s) must be addressed when using biofeedback to relax muscle guarding?
A. pain
B. mental imagery
C. apprehension
D. all of the above
A

D

Electro (6 decks)

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