The components of fitness include
Which of the following is a true characteristic of the activity pyramid?
Vigorous activities like biking or swimming should be engaged in at least 3-5 days/week.
What are benefits of maintaining fitness?
Bone density will reach optimal levels.
Increased resistance to infectious diseases and some kinds of cancer.
Lowering the risk of cardiovascular disease.
During physical performance, what is the role of creatine phosphate?
Transfer of energy to make ATP
The effect of regular exercise on heart and lung function is known as
A tissue deprived of an oxygen supply during exercise would have an accumulation of
Two definitive indicators of the physical fitness of older adults are strength and
What are derived directly from cardiorespiratory conditioning?
Slowed resting pulse
Increased breathing efficiency
Increased blood volume and oxygen delivery
What substance contains the chemical energy that drives immediate muscle contraction?
If muscle work is anaerobic, which of the following cannot serve as fuel?
In weight training, muscle strength can best be emphasized by combining a
low number of repetitions with heavy weight.
What dietary nutrients are most effective at raising muscle glycogen concentrations?
Which of the following activities depletes glycogen most quickly?
Which of the following is a characteristic of sports anemia?
It is a temporary condition requiring no treatment.
Some characteristics of heat stroke include
it is due, in part, to dehydration.
it is caused by heat buildup in the body.
its symptoms include headache, nausea, and mental changes.
Which of the following would be the best choice for physically active people who need to rehydrate?
Diluted juice or cool water
What is the principal reason that intake of alcohol is not beneficial to athletic performance?
It is not metabolized in muscle.
Which of the following describes an effect of caffeine use in the athlete?
It induces fluid losses.
What is the source of whey protein sold as supplements to body builders?
A waste product of cheese manufacturing.
An athlete who believes in soda loading as a means of improving performance would, right before the event, consume
What type of chemicals are DHEA and androstendione?
Which of the following is a characteristic of human growth hormone use in athletes?
Excessive use shortens life span