Chapter Questions
An energy-rich compound, phosphocreatine $(\mathrm{PCr})$, is found in tissue.a. adiposec. liverb. muscled. kidney
A fitness program should includea. aerobic exercises 5 days per week.b. strength-training exercises 2 to 3 days per week.c. stretching exercises 2 to 3 days per week.d. All of the above.
During muscle-building regimens, athletes should consume grams of protein per kilogram body weight.a. $0.5$ to $0.7$C. $1.5$ to $1.7$$0.8$d. 2 to $2.5$
Which of these foods is the best choice for carbohydrate loading before endurance events?a. potato chipsc. All-Bran (high-fiber) cerealb. French friesd. rice
As the body adapts to regular exercise, the "training effect" results ina. decreased blood flow to muscles.b. increased lactic acid production.c. decreased muscle triglyceride content.d. decreased resting heart rate.
A physically active lifestyle leads toa. increased bone strength.b. decreased risk of colon cancer.c. reduced anxiety and depression.d. All of the above.
How many cups of fluid are required to replace each pound of weight lost during an athletic event or workout?a. $0.5$ to $0.75$c. 2 to 3b. 1 to $1.5$d. 4 to 5
The benefit of a "sports" drink is to providea. water to hydrate.b. electrolytes to enhance water absorption in the intestine and maintain blood volume.c. carbohydrate for energy.d. All of the above.
Compared to anaerobic glucose metabolism, aerobic glucose metabolism produces morea. lactic acid.c. phosphocreatine.b. ATP.d. fatty acids
Caffeine is used as an ergogenic aid by some athletes because it is thought toa. decrease fatigue.b. decrease the buildup of lactic acid.c. serve as an energy source.d. increase muscle mass and strength.