chapter 10 quiz
Sports nutrition experts recommend that endurance athletes consume _____ percent of their energy from fat.
20-35
Moderate use of caffeine by athletes:
may assist performance
The main role of ____ in supporting physical activity is to serve as an antioxidant, protecting tissues from oxidation.
Vitamin E
During non-endurance exercise, the optimal beverage for replacing fluids is:
cool water
Characteristics of cardiorespiratory endurance include:
increased cardiac output and oxygen delivery.
Glycogen storage is:
limited to less than 2,000 calories.
The health benefits of being physically active include all of the following except:
lower incidence and reduced severity of eating disorders.
Which activity most enhances flexibility?
stretching
The amount of protein needed to fuel physical activity varies depending on:
the extent of training, with higher degrees of training requiring less protein at a given intensity.
An endurance athlete can lose ____ of fluid an hour during activity.
1.5 quarts
A person who continues exercising moderately for longer than ____ minutes begins to use less glucose and more fat for fuel.
20
Which beverage should not be used by athletes for fluid replacement because of its adverse effects?
alcoholic beverage
Taking vitamin or mineral supplements just before competition will help to improve performance
false
The body is able to store unlimited amounts of glycogen in muscles.
false
Weight-bearing activity may interfere with maintenance of bone strength.
false
Lactate buildup in working muscles:
indicates that anaerobic breakdown of glucose has occurred.
The Physical Activity Guidelines for Americans recommend that adults:
perform muscle-strengthening activities of moderate to high intensity 2 or more days a week.
The Physical Activity Guidelines for Americans recommend:
performing a minimum of 150 min of moderate-intensity aerobic activity each day. (WRONG)
Muscle hypertrophy is an increase in size in response to use
true
Progressive weight training is not associated with:
reduced lean body tissue.
One thing to consider when attempting to increase daily physical activity for health is to:
seek a doctor's advice if you have a serious chronic illness.
People who regularly engage in physical activity live longer on average than those who are physically inactive.
true
Which factor does not influence how much glucose a person uses during physical activity?
age of the person exercising
Sports anemia:
is generally considered a normal adaptation to endurance training.
A benefit of cardiorespiratory endurance training is that:
the heart muscle grows larger and stronger.
