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 "isolating tension"? 

• Eccentric
• Concentric
• Isometric
• Isotonic

Henry is getting ready to kick a field goal. When his thigh muscle contracts to straighten his knee right before the kick, this is known as _____ contractions?

• Concentric

• Eccentric

• Isometric Contraction

• Isokinetic Contraction

Sally is carrying a box of training materials directly in front of her, as she is on her way to set-up a conference room prior to the start of a seminar. While she is walking her biceps are remaining in a fixed position and are not being raised or lowered. Which of the following is this an example of?

• Concentric Contraction

• Eccentric Contraction

• Isometric Contraction

• Isokinetic Contraction

Jerrel has to go to physical therapy twice a week after injuring his knee. While there, his physical therapist has him do exercises that are on a machine and will allow Jerrel to put his knee through a full ROM at constant tension throughout the exercise. This is an example of what type of contractions?

• Concentric Contraction

• Eccentric Contractions

• isometric Contractions

• Isokinetic Contractions