In a Comparison of Physically Fit and Unfit People, Which $\dot V$

question 10

Multiple Choice

In a comparison of physically fit and unfit people, which of the following statements are true?
I.The maximum heart rates of physically fit and unfit people of the same age are considerably different.
II.The maximum heart rates of physically fit and unfit people of the same age are the same.
III.Physically conditioned and unconditioned people performing the same amounts of work consume the same amounts of oxygen.
IV.The $\dot V$ O₂ is linearly related to the work rate regardless of conditioning, age, or gender.

• A) II, III, IV
• B) I, III, IV
• C) I, II, III, IV
• D) I, II, III

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Definitions:

Thermoregulatory Center

The part of the brain that regulates body temperature, located in the hypothalamus.

Sensory Receptors

Specialized cells or nerve endings that respond to changes in the environment by converting energy from stimuli into nerve impulses.

Hollow Interior

Refers to the inner empty space or cavity within an organ or structure.

Filter Blood

The process of removing waste products and excess substances from the bloodstream, primarily performed by the kidneys.