Exploring Exercises for Muscular Fitness

Isometric exercise strengthens muscles without __________. A. contracting muscle fibers B. changing muscle length C. burning calories D. conscious effort

B. Changing muscle length

Which of the following is TRUE about protein and supplements in diets? A. Everyone needs additional protein in their diet. B. Weight lifters need to include supplements in their diets. C. It is uncertain whether many dietary supplements are effective. D. Most supplements are known to enhance the benefits of weight training.

C. It is uncertain whether many dietary supplements are effective

What distinguishes push-ups from other chest exercises such as the bench press and dumbbell flies? A. The bench press also exercises the legs. B. Push-ups are a variable resistance exercise. C. Push-ups do not require any weights or machines. D. Push-ups are not actually chest exercises.

C. Push-ups don't require any weights or machines

In calisthenics, the resistance is ultimately provided by __________. A. free weights B. springs and elastic bands C. gravity D. weight machines

C. gravity

The principal benefit of speed loading is to increase __________. A. overall muscle strength B. flexibility C. muscle endurance D. natural movement speed

D. Natural movement speed

What is isotonic exercise (dynamic exercise)?

Exercise involving muscle contraction with a change in the length of the muscle.

What is isometric exercise (static exercise)?

Exercise involving muscle contraction without a change in the length of the muscle.

What is calisthenics?

Exercises which use body weight and gravity to provide resistance.

Weight training requires that individuals add supplemental protein to their diet. TRUE OR FALSE

FALSE

What is eccentric muscle contraction?

A contraction of the muscle in which the muscle lengthens.

What is concentric muscle contraction?

A contraction of the muscle in which the muscle shortens.

What is isokinetic exercise?

An exercise in which a muscle undergoes a constant contraction intensity by exerting force at a constant speed against an equal force, typically supplied by a special machine.

What is plyometrics?

An exercise technique utilizing a sudden eccentric loading and stretching of muscles followed by a rapid concentric contraction.

Which of the following is a myth about weight lifting? A. Not everyone can become a bodybuilder through weight training. B. Women who lift weights will develop large, bulky muscles. C. People who weight train don't need protein supplements. D. Spot training cannot help someone lose fat in a specific body area.

B. Women who lift weights will develop large, bulky muscles

The principal difference between isometric and isotonic exercises is the __________. A. use of free weights and weight machines B. rate of calories burned during exercise C. change in muscle length during exercise D. type of muscles exercised

C. Change in muscle length during exercise

Why is spot training a myth? A. Exercise only burns fat in specific body regions. B. Weight training strengthens muscles but does not burn fat. C. The results of spot training are not consistent. D. Exercise cannot burn fat in a target body region.

D. Exercise cannot burn fat in a target body region

The rear deltoid row is a back exercise. TRUE OR FALSE

TRUE

What is a contraction?

Tension generated in a muscle, regardless of its change in length.