Chapter 11 Flashcards
prolonged, low intensity exercise uses mainly ______ muscle fibers.
Type I
Glycogen is the primary source of glucose for ATP production in muscles during intense activity that lasts for less than 2 minutes.
True
Carbohydrate loading is for strength-trained athletes.
False
The amount of ATP stored in a muscle cell can keep a muscle active for about
1-4 seconds.
Which substance is considered to be a proven ergogenic aid that increases athletic performance?
None of these substances increase athletic performance.
An example of a food to avoid in a pre-game meal is
hot dogs.
Athletes, particularly female and young athletes, need to increase their intake of ________ to increase red blood cell production.
iron
Lactic acid from anaerobic glycolysis is transported by the blood to the liver where it will be
resynthesized to glucose.
Slow, steady aerobic activity uses mostly fat as an energy source.
True
The site of greatest energy production in a muscle cell is the
mitochondria
The Borg Scale of Perceived Exertion is used to determine
exercise intensity.
Amino acids can be used as a primary fuel for muscles.
False
When an athlete’s maximal performance is desired, carbohydrates are a more efficient fuel than fat because
carbohydrate is oxidized more rapidly than fatty acids.
Warm-up and cool-down should be parts of your exercise routine.
True
Anabolic steroids are
synthetic versions of male sex hormones.
The disadvantage of anaerobic glycolysis in high-intensity muscle contractions is that
ATP production cannot be sustained for long events.
When conditions in the exercising muscle are anaerobic, metabolism of glucose results in
the formation of lactate.
A good way to determine the intensity of exercise is to measure the amount of oxygen a person consumes.
true
In order for an individual to maintain an exercise regimen it helps if
the exercise is built into a daily routine.
At very high intensities of exercise, most of the energy the body uses is supplied by
muscle glycogen.
Thirst is an excellent indicator of fluid needs during exercise.
False
Glucose is stored in muscle tissue as
glycogen.
According to the 2008 Physical Activity Guidelines for Americans substantial health benefits occur when adults engage
in 150 minutes of moderate intensity exercise each week.
During muscle-building regimes, how much protein should athletes consume?
1.5g-1.7g/kg
After 1½ to 2 hours of exertion, drinks with 10% to 20% solution of carbohydrates
take longer to absorb and are not recommended.
Restoration of muscle glycogen occurs when _____ grams of carbohydrates per kilogram of body weight are consumed 30 minutes after exercise and again 2 hours after exercise.
1.0 - 1.5
The majority of stored energy in the body is in the form of
triglycerides.
Hyponatremia is a condition caused by
overconsumption of water.
The benefits of participating in different types of exercise are
strengthening a variety of muscle groups.
reducing the chances of injury.
promoting activities that are more interesting and thus more likely to be continued.
All of these responses are correct
A response called hypertrophy occurs when
muscles enlarge after being made to work repeatedly
Training and exercise are beneficial because they
increase the number of mitochondria in muscle cells.
Fluids should be consumed _________ an athletic event.
before, during, and after. all are correct
The best exercise is one you want to continue to do.
true
