QUESTION 4 When performing Exercise 2 EMG Intensity and Fatigue in the left fore

Question

QUESTION 4

When performing Exercise 2 EMG Intensity and Fatigue in the left forearm, the procedure is; squeeze the dynamometer with as much force as you can and try to hold it as long as you can. Once the subject falls 50% below their maximum contraction at the beginning of the recording, the subject is told to slowly release the dynamometer.

True

False

QUESTION 7

In exercise 1, the subject will perform the following procedure

the subject will squeeze the dynamometer 4 times in a row with moderate force

the subject will squeeze the dynamometer 4 times in a row and each squeeze will get progressively stronger, each squeeze will be held for 3-4 seconds and each recovery phase will be 2-3 seconds

The subject will squeeze the dynamometer 5 times in a row will a 5 second break in-between each squeeze

The subject will squeeze the dynamometer 5 times. Each squeeze will get progressively stronger and each squeeze will be held slightly longer.

the subject will squeeze the dynamometer 4 times in a row with moderate force

the subject will squeeze the dynamometer 4 times in a row and each squeeze will get progressively stronger, each squeeze will be held for 3-4 seconds and each recovery phase will be 2-3 seconds

The subject will squeeze the dynamometer 5 times in a row will a 5 second break in-between each squeeze

The subject will squeeze the dynamometer 5 times. Each squeeze will get progressively stronger and each squeeze will be held slightly longer.

1 points   

QUESTION 8

Which of the following statements is true?

the top channel is the EMG channel which represents muscle force and is measured in kilograms (kg) and the bottom channel is the muscle force channel and is measure in millivolts (mv)
the top channel is the muscle force channel and is measured in kilograms (kg), and the bottom channel is the EMG and is measured in millivolts (mv)
the top channel is the EMG channels which represents electrical activity of the nervous system and is measured in millivolts (mv), and the bottom channels is the muscle force channel and represents the strength of the contraction in kilograms (kg)
the top channel is the EMG channel which measures the force of the contraction in kilograms (kg) and we really don't need to use the bottom channel

QUESTION 11

When analyzing data for exercises 1 and 3, we will not need the data for V2-V1 or T2-T1.

True

False

Explanation / Answer

Answer:Q. No.4, the above statement is false because when the subjects clench force falls below 50% of the maximum,the procedure will be stopped. the subject will clench the hand dynamometer bulb as tight and as long as possible in an attempt to fatigue,the muscles in the foream.

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