Chapter 4 Muscle Activity and Strength

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Chapter 4  Muscle Activity and Strength

 

 

Complete Chapter Questions And Answers
 

Sample Questions

 

Multiple Choice
Identify the choice that best completes the statement or answers the question.

____ 1. A shortening contraction of a muscle is synonymous with a(n) _____________ contraction.
a.
concentric
b.
isometric
c.
eccentric
d.
isotonic

____ 2. From a physiological perspective, this type of muscle contraction is the most efficient (uses the least amount of energy):
a.
concentric
b.
isometric
c.
eccentric
d.
isotonic

____ 3. Which of the following is associated with an eccentric contraction?
a.
Decreased width of the “A” band
b.
The force generated by the muscle is less than the external load.
c.
The force generated by the muscle is greater than the external load.
d.
Positive work

____ 4. Isokinetic devices provide ______________ resistance throughout the range of motion thereby promoting ______________ output of the exercising muscle group.
a.
increasing; maximal
b.
decreasing; minimal
c.
accommodating; maximal
d.
accommodating; minimal

____ 5. With a bi-articular muscle, if neither the proximal or distal end is “fixed” during a contraction of the respective muscle:
a.
motion will occur at the proximal joint only
b.
motion will occur at the distal joint only
c.
motion will occur at both the proximal and distal joints
d.
no motion will occur

 

MULTIPLE CHOICE

1. ANS: A PTS: 1

2. ANS: C PTS: 1

3. ANS: B PTS: 1

4. ANS: C PTS: 1

5. ANS: C PTS: 1

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