Cardiorespiratory Fitness Testing Chapter 4

How is Cardiorespiratory Fitness measured

It’s estimated by peak oxygen consumption (Vo2Max)

Cardiorespiratory Fitness is related to what

To ones ability to perform large muscle, dynamic, submaximal intensity exercise for prolonged periods of time.

What does Cardiorespiratory Fitness depend on

Performance depends on the integrated physiologic and funcional state of the respiratory, cardiovascular, and musculoskeletal systems

Why is Cardiorespiratory fitness a health-related component of physical fitness

Because even low levels of CRF has been associated with increased risk of premature death from all causes and CVD

Benefits of increases in Cardiorespiratory Fitness (CRF)

Reduces risk of death from all cause

What are high levels of CRF associated with

Higher levels of physical activity

What is VO2max

Maximal volume oxygen consumed per unit time

How is VO2 max expressed

mL x kg -1 x min -1 relative to body weight rather than

Fick Equation

VO2 (mL x kg^-1 x min^-1) = Q(L x min^-1) x (a-vO2diff) (mL x L-1)

What is Vo2max limited by

Limited by the capacity of the cardiorespiratory system to deliver oxygenated blood to exercising tissues