What body systems are required to become a successful runner

There are many different systems involved in when we exercise, the three main ones are the Respiratory system which is involved in breathing the circulatory system which is about circulation of blood around the body and finally the muscular system and finally the Muscular system which is about how we move.

Explanation:

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Flexibility.

Good posture.

Good leg motion.

Cadence.

Body Sensing.

Good mental focus.

Good upper body/lower body coordination.

Good breathing habits.

answer; (c); /out to the side and directly under the dogs neck.

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explanation: