Muscular Strength and Endurance

Two individuals start the same training program at the same time, but one is able to grow muscle faster and larger than the other. What is the least likely explanation for this?

A. One individual was born with more muscle fibers.

Which statement BEST describes the factors that affect muscular endurance?

A. size of the muscle cells, ability to store fuel, and blood supply to the muscles

In this theory of muscle growth, muscle fibers are able to split and create new fibers.

B. hyperplasia

An individual has sarcopenia. In order to prevent this condition from becoming any worse, what action should be taken?

B. participate in more activities like weight training

A mother sprints across the yard to grab her small child before he enters the street. The mother is using her __________.

B. type II B fast-twitch muscle fibers that respond quickly and provide her with speed and strength

What are the advantages of strength exercises?

By completing strength exercises, you are helping yourself remain independent and carry out daily activities such as climbing stairs and carrying groceries. They can also benefit the heart, improve your balance, bone strength, and help with weight loss. Some strength training exercises one can do to make their muscles stronger are lifting weights, using resistance bands, and using your own body weight (push ups, squats, etc.)

Improvements in muscular strength will not affect muscular endurance.

F

If you increased the amount of muscle mass in your body, what other changes would occur?

More muscle mass would speed up metabolism, reduce the amount of body fat, and help protect an individual from injury.

Describe four ways in which improving your muscular fitness would have a positive affect on your life.

athletic performance, injury prevention, body composition, self-image, lifetime muscle and bone health, and chronic disease prevention.

Muscles make up more than _____ of a person's body mass.

C. 40%

An individual picks up a cup and drinks from it. This is an example of __________.

A. a concentric contraction because muscles cause the elbow joint and arm to move

Strength training is beneficial because it decreases your risk of injury. Which statement BEST describes why this is true?

C. Muscular fitness training strengthens tendons, ligaments, and cartilage.

If an individual started running 10 miles three times a week, there would most likely be an __________.

C. increase in muscular endurance

What can be found in every skeletal muscle?

C. muscle fibers, nerves, connective tissue, and blood vessels

When comparing an individual with low muscular fitness to an individual with high muscular fitness, we would very likely find that __________.

C. the individual with high muscular fitness would also have a lower chance of becoming injured

Describe the components of health-related fitness.

Cardiorespiratory fitness is the fitness level of the heart and lungs. Body composition is the ratio in the body of muscle to fat. Muscular strength is the force muscles can produce in a single maximum effort. Muscular endurance is the ability of muscles to remain contracted or to contract repeatedly over a period of time. Flexibility is the range of motion a body has.

Jackie noticed an increase in appetite after she started weight training. Since she did not change her eating habits, her body fat began to drop. Why did this happen?

D. As muscle mass increases, so does metabolism. A higher metabolism burns more fat.

Dawn is trying to find out how much weight she can push across the room. She is really trying to find her __________.

D. muscular strength

Strength training lessens bone loss.

T

Strength training makes ligaments, tendons, and cartilage stronger.

T

Type II B fast-twitch muscle fibers are those used in a short sprint.

T