Which of the following is NOT transferred by alveoli?A.oxygenB.bloodC.carbon dioxideD.gases
When lifting weights or spotting a weight lifter, the individual must always keep a straight back.
Describe how a multistage fitness test works and what it is intended to do.
The multistage fitness test (beep test) requires participants to run back and forth between two lines 20 m apart in time with audio beeps that progressively get faster. The test continues until the participant can no longer keep up with the beeps. It estimates a person's VO2 max and overall cardiorespiratory endurance.
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Explain how smoking damages the respiratory system and name two conditions that can develop when a person smokes.
The lungs need to remain elastic so they can effectively move oxygen into the body and carbon dioxide out of the body. By smoking, you are actually introducing carbon monoxide into the body, which is toxic. Tars and other chemicals will settle on the cilia of the lungs and cannot be removed; which further degrades the functionality of the respiratory system. Two conditions that develop when a person smokes are emphysema and bronchitis.
Compare and contrast the benefits and effects of running and walking.
Running and walking both do not require special equipment and can be done anywhere. They are both exercises that are easy to control one's own efforts. Running burns 600 calories per hour, while walking burns 300 calories per hour. Running has a higher impact on joints than walking does.
Briefly explain why maintaining a healthy weight is important in cardiovascular system care.
Maintaining a healthy weight reduces the stress on the heart and blood vessels.
Describe how to determine your maximum heart rate and why heart rate is important to monitor while exercising.
Estimate your maximum heart rate by subtracting your age from 220. While exercising, monitor your heart rate to judge how hard you are working, stay within an appropriate target zone, and avoid overexertion. This calculation is only an estimate, so individual heart rates may vary.
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