The Definition of Cardiorespiratory Fitness Is __________

The definition of cardiorespiratory fitness is __________.

A) The maximal force that a muscle or muscle group can generate in a single effort.
B) The coordinated capacity of the heart, blood vessels, respiratory system, and tissue metabolic systems to take in, deliver, and use oxygen.
C) The ability to sustain a held maximal force or to continue repeated sub maximal contractions.
D) The functional ROM about a joint.