Chapter 10- Performance Nutrition
Sports nutrition experts recommend that endurance athletes consume _____ percent of their energy from fat.
20-35
All of the following statements concerning beer are correct except:
beer gets most of its calories from carbohydrates
Which of these foods should form the bulk of the pregame meal
breads, potatoes, pasta, and fruit juices
The length of time a person must spend exercising in order to meet the Physical Activity Guidelines for Americans varies by
exercise intensity
As physical activity continues beyond the first few minutes, which of the following flows into the bloodstream to signal the liver to liberate its stored energy nutrients?
glucagon
Which diet has been shown to increase an athlete's endurance
high-carbohydrate diet
Which is required as part of myoglobin
iron
An athlete's pregame meals should be
low in fat moderate in protein
All of the following are potential benefits of regular physical activity except:
lower risk of sickle cell anemia
To prevent both muscle cramps and hyponatremia, endurance athletes who compete and sweat heavily for four or more hours need to
replace sodium during the event
Active people need nutrient-dense foods such as ____ to supply vitamins, minerals, and phytochemicals.
sweet potatoes
Which of the following energy systems provides the needed energy for a lifter's heave of a heavy weight?
the energy reservoir
A person who exercises moderately for longer than 20 minutes begins to
use less glucose and more fat for fuel
Researchers measure cardiovascular fitness with VO2 max, which will:
increase as fitness improves and blood is pumped more efficiently.
Recommendations have been established for moderate physical activity because:
physically active people live longer than those who are inactive.
A young woman wanting to build maximum bone density should do all of the following except:
reduce her intake of protein.
Athletes should avoid frequent between meal snacks
False
To overload a muscle is never productive
False
Weight-bearing activity that improves muscle strength and endurance has no effect on maintaining bone mass
False
Added sugars can be useful in meeting the high carbohydrate needs of some athletes
True
Aerobically trained muscles burn more fat readily than untrained muscles
True
An athlete should drink extra fluids in the last few days of training before an event in order to ensure proper hydration
True
Research does not support the idea that athletes need supplements of vitamins to enhance performance
True
Before athletic competitions, a moderate caffeine intake
may enhance performance
What is the intensity level of a physical activity that causes some increase in breathing, is a perceived exertion of 5 or 6, and allows you to have a conversation while doing the activity?
moderate
Carnitine supplements
often produce diarrhea
The Physical Activity Guidelines for Americans recommend:
accumulating activities in weekly totals of at least 10-minute sessions.
