1select the correct answer. what is measured by the amount of time a muscle group can sustain a contraction? a. muscular endurance b. muscular strength c. cardiovascular fitness d. all of the above reset next previous 1 next 4.1 quiz submit test reader tools info save & exit © 2019 edmentum. all rights reserved.

The correct option is A. Muscular endurance  is measured by the amount of time a muscle group can sustain a contraction.

Explanation:

The capability of a single muscle or a group of muscles to carry out contractions for a specific time is termed as muscular endurance. The muscular endurance is carried in effect to a resistance. Hence, option A is correct.

Muscular strength can be defined as the energy or force present in a muscle. Hence, B option is not correct.

Cardiovascular fitness is wrong option because it determines how healthily a person's heart and lungs work to supply oxygen for the working muscles.

i think its A

Explanation:

answer; the above is true;

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