What is Cardiorespiratory fitness?
How well heart, lungs, and muscles deliver oxygen during activity; often discussed alongside VO2 max.
lungs → heart → muscle · keeps pace
Which statement fits Cardiorespiratory fitness?
Answer it in your own words in the app.
In real work
Improving cardiorespiratory fitness supports heart health across the lifespan.
In the illustration
The bellows draw air, the pump pushes oxygen-rich fluid down the pipe and the muscle engine's flywheel spins up; as a load weight lands, all three stages speed up together and keep pace.
Describe in your health app how cardiorespiratory fitness is estimated from my activity data and what kinds of activity are known to change it over months.
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