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NeX [460]
3 years ago
14

Crystal is trying to get in shape for softball season, so she takes a hip hop dance class at the gym for 45 minutes, three days

a week. She wears a heart rate monitor and finds that her heart rate reaches 125 beats per minute, but her target heart rate zone is 142—180 beats per minute. Which of the following could she do to get her heart rate into the target zone?
A-Dance at a faster pace
B-Dance at a slower pace
C-Dance for a longer length of time
D-Dance for a shorter length of time

On the way to the football game, Mark tossed James the car keys, saying, "Heads up!" James responded quickly enough, but the keys fell to the ground before he could change directions and catch them. Which skill should James work on to catch the keys the next time?

A-Agility
B-Reaction
C-Balance
D-Power

Flexibility, or range of motion around the joints, also ranks as an important component of health-related fitness. Lack of flexibility in the lower back and posterior thigh is thought to contribute to low back pain. Extreme lack of flexibility also has a deleterious effect on the quality of life by limiting performance.

"exercise." Britannica School. Encyclopaedia Britannica, Inc., 2013. Web. 21 Oct. 2013.

How is the word deleterious used in this excerpt?

A-To emphasize that flexibility is a critical component in maintaining physical health
B-To refer to how individuals should train to improve flexibility and quality of life
C-To show that people do not understand how important flexibility is in preventing pain
D-To repeat the idea that increased range of motion can damage a person's quality of life

What does weight training use?

A-Aerobic improvements from muscle strength
B-Flexibility of muscle control
C-Resistance against muscle contractions
D-Extra muscle tissue

fibershy are children in low-income neighborhoods more likely to be less physically active than children in other communities?
A-Their homes are not close to parks and playgrounds
B-They are allowed to skip physical education classes at school
C-Their communities are not interested in public health
D-Their parents do not allow them to participate on sports teams
Health
2 answers:
Elina [12.6K]3 years ago
7 0
1. C.
2.A.
3.d.
4.A.
5.d
jeka57 [31]3 years ago
6 0

ANSWER:

C-Dance for a longer length of time

A-Agility

A-To emphasize that flexibility is a critical component in maintaining physical health

C-Resistance against muscle contractions

A-Their homes are not close to parks and playgrounds

EXPLANATION:

1 .

If Crystal wants to get her heart rate into the target zone then she should dance fo a longer period of time because with every heartbeat there is a contraction of the heart muscle that pumps the blood a little more further so when she dances, different muscles in the body are used for movement. When she continues to dance, her muscles need oxygen, which is supplied through the bloodstream. Her heart rate increases and pumps more oxygenated blood to the muscles.Then, the faster heart rate pumps more blood to the lungs to gather oxygen for transport to tissues,then you get high heart rate.

2.

James should work on Agility to catch the keys the next time  because Agility is an ability to change the body's position quite efficiently, and requires the combination of  movement skills using balance, coordination, speed, reflexes, strength, and endurance. Since a top class football player combines all the above mentioned skills which are present in agility so he must work on agility.

3.

The word deleterious generally means causing harm or damage to someone.Here deleterious is used to emphasize that flexibility is a critical component to mantain physical health.A person having flexibility can mantain a good physical health quite easily and comfortably but on the other hand a person having less flexibility must be cautious about having back pain that can limit his/her performance.

4.

Weight training is a special type of training to develop the strength and size of our muscles. It uses the gravitational force in the form of weighted bars, dumbbells and weighted stacks in order to oppose the force generated by our muscles through the concentric or eccentric contraction. Weight training uses different types of equipments to target our specific muscles and different types of movements.

5.

Children in low-income neighborhoods more likely to be less physically active than children in other communities because their homes are not close to parks and playgrounds.In low income neighbourhoods children don't get certain opportunities as compared to other children who are growing up in a good or high income neighborhoods.These lack of opportunities make them less active physically and mentally too.

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