Muscle Contraction Types

When a muscle shortens under tension, it is called_______

• isotonic eccentric contraction
• isotonic concentric contraction
• isometric concentric contraction
• isometric eccentric contraction

The type of muscle contraction where the muscle tenses but does not shorten.  

• Isometric
• Isotonic
• Contraction
• relaxation

When a muscle is under tension, it is not possible for it to be lengthening

• True
• False

As the athlete lowers the weights, his biceps undergo-

• isometric concentric contraction
• isotonic eccentric contraction
• isometric contraction

What are the three types of muscles?

• Cardiac, Elastic, Smooth
• Smooth, Curly, Skeletal
• Smooth, Cardiac, Skeletal
• None of the above

Holding barbells out in a sustained motion would be a...

• Isometric contraction
• Isoinertial contraction
• Eccentric contraction
• Concentric contraction

Which of these terms means "with constant tension"? 

• Eccentric
• Concentric
• Isometric
• Isotonic