Deck 18: Electromyographic Biofeedback

Question 1

The efficacy for electromyographic biofeedback is clinically well accepted for what scenario?

A) Reeducating muscle
B) Increasing strength
C) Decreasing pain
D) Reducing edema

Answer 1

A

Question 2

When compared to standard flexibility exercises,the use of relaxation biofeedback has been shown to significantly increase flexibility in healthy individuals.

Answer 2

False

Question 3

Which of the following are likely reasons that someone post-ACL surgery would not be able to contract their vastus medialis oblique?

A) Swelling and pain
B) Pain and denervation
C) Denervation,disuse atrophy,and swelling
D) Swelling,pain,and disuse atrophy

Answer 3

D

Question 4

What step in the electromyographic biofeedback signal process involves taking the absolute value of the negative electrical activity and making it a mathematically positive number?

A) Amplification
B) Integration
C) Rectification
D) Identification

Question 5

What type of biofeedback measures the amount of light reflected by the subcutaneous tissues?

A) Mechanomyographic
B) Electromyographic
C) Galvanic skin response
D) Photoplethysmography

Question 6

What term is commonly used to represent the small amount of energy that is absorbed by the body due to its bombardment by electromagnetic energy?

A) Noise
B) Interference
C) Static
D) Resistance

Question 7

What is the correct order of electromyographic biofeedback signal processing?

A) Identify; amplify; rectify; integrate; output
B) Identify; rectify; amplify; integrate; output
C) Identify; amplify; integrate; rectify; output
D) Identify; integrate; amplify; rectify; output

Question 8

Placement of treatment electrodes from one treatment to another will affect the reliability of a biofeedback measurement.

Question 9

Which of the following modalities does not deliver energy to the body?

A) Ice pack
B) Moist heat pack
C) Ultrasound
D) Electromyographic biofeedback

Question 10

Which statement is true concerning the placement of surface electrodes when using electromyographic biofeedback?

A) The electrodes should be placed about 3 cm apart.
B) The closer the electrodes,the stronger the signal.
C) The farther apart the electrodes,the weaker the signal.
D) Electrodes placed farther apart will have better reliability.

Question 11

Measurements from one biofeedback unit can be reliably compared to another brand of biofeedback unit.

Question 12

According to the practical evidence,when is it most beneficial to incorporate electromyographic biofeedback in a neuromuscular rehabilitation?

A) Early on
B) Middle of the program
C) Toward the end of the program
D) Timing of application does not alter the benefits of biofeedback.

Question 13

The most sensitive EMG surface monitors have electrodes made with what metal?

A) Silver
B) Zinc
C) Gold
D) Copper

Question 14

The integrity of the electromyographic biofeedback signal depends on the number of filters used,with the signal becoming more precise with more filters.

Question 15

The benefits of biofeedback can be enhanced by performing which of the following? Select all that apply.

A) Educating the patient on the concept of biofeedback
B) Incorporating learning strategies
C) Setting patient goals
D) Providing verbal feedback from the clinician while producing muscle contraction
E) Educating the patient on the physiology of muscle contractions

Question 16

Biofeedback is used to measure biophysical properties.Which of the following represents uses for the feedback that is measured? Select all that apply.

A) Muscle reeducation
B) Facilitation of muscle relaxation
C) Control blood pressure
D) Control heart rate
E) Control respirations

Question 17

In which scenarios is the use of electromyographic biofeedback indicated? Select all that apply.

A) Decrease muscle spasm of erector spinae
B) Promote systemic relaxation
C) Regain neuromuscular control of the vastus medialis oblique
D) Facilitate contraction of the biceps femoris
E) Treatment of a second-degree strain to the gastrocnemius

Question 18

Which of the following is considered an initial result of biofeedback and not a secondary result from the initial?

A) Facilitates reeducation
B) Increases muscular strength
C) Increases range of motion
D) Reduces pain

Question 19

When using biofeedback to facilitate an isometric contraction,how many contractions should the treatment be limited to if the muscle group is severely atrophied?

A) 5 contractions
B) 5 to 10 contractions
C) 10 to 15 contractions
D) 20 contractions

Question 20

What biofeedback parameter identifies a target range for electromyographic activity?

A) Alarm
B) Output
C) Sensitivity range
D) Tuner