Physical activity and cardiorespiratory fitness. (Quiz)
Why are slow-twitch muscles more beneficial than fast-twitch muscles for cardiorespiratory fitness?
Slow-twitch muscles are able to use oxygen more efficiently than fast-twitch muscles.
During exercise, an individual's heart rate tends to increase steadily until...
A level of consistent intensity has been reached.
As a person age, his or her levels of cardiorespiratory fitness tend to...
Decline.
Which of the following physiological effects occurs as a result of increased exercise?
The volume of blood pumped by the heart increases.
Increasing cardiorespiratory fitness levels is difficult for the experience athletes because...
They have already achieved high levels of cardiorespiratory fitness.
Female gains in body fat starting around puberty can result in a cycle of diminished physical fitness...
True.
The cardiovascular system helps move hormones throughout the body during exercise...
True.
The maximum oxygen uptake is known as the...
VO2 max.
For a typical person who leads a sedentary lifestyle, a typical maximum oxygen intake level would be...
35 ml/kg/min
Optimal cardiorespiratory fitness requires a BMI of...
18.5 to 24.9
As people age, they become unable to confirm their cardiorespiratory fitness levels...
False.
During exercise, the oxygen concentration in the blood increases to twice that of resting levels...
False.
The maximum oxygen intake level can only be measured using the multistage fitness test...
False.
As exercise levels increase, which of the following physiological changes occurs in the respiratory system?
The lungs expand in size.
