Question 1

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

Accepted Answer

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

Question 2

What biofeedback parameter identifies a target range for electromyographic activity?

Accepted Answer

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

Question 3

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

Accepted Answer

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 4

What is the correct order of electromyographic biofeedback signal processing?

Accepted Answer

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 5

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?

Accepted Answer

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

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

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 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

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?

Accepted Answer

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

Question 14

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

Accepted Answer

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

Question 15

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

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

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 A,B,C,D

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

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

Question 20

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

Accepted Answer

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.

Exam 18: Electromyographic Biofeedback

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

Correct AnswerverifiedA

What biofeedback parameter identifies a target range for electromyographic activity?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is the correct order of electromyographic biofeedback signal processing?

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedA,B,C,D

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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