What is the predominant fuel used by muscle cells during low- or moderate-intensity activity?
a. Fat
b. Protein
c. Glycogen
d. Blood glucose
e. Glucose
Q. 2In weight training, muscle strength can best be emphasized by performing a
a. low number of repetitions with heavy weight.
b. low number of repetitions with lighter weight.
c. high number of repetitions with heavy weight.
d. high number of repetitions with lighter weight.
e. sufficient repetitions with any weight to induce exhaustion.
Q. 3The volume of blood ejected by the heart each minute is known as the
a. VO2 max.
b. one-half VO2 max.
c. cardiac output.
d. cardiac conditioned index.
e. cardiac volume.
Q. 4For maximum benefits, cardiorespiratory endurance episodes should be sustained for at least
a. 20 minutes.
b. 40 minutes.
c. 1 hour.
d. 1 1/2 hours.
e. 2 hours.
Q. 5Which of the following is an example of a resistance training activity?
a. Yoga
b. Swimming
c. Power walking
d. Lifting free weights
e. Ballistic stretching
Q. 6A person's VO2 max is the maximum
a. velocity on a treadmill test.
b. rate of oxygen consumption.
c. intake of oxygen while at rest.
d. intake of air at 70 physical exhaustion.
e. speed of oxygen exchange in the lungs
Q. 7A muscle that increases in size in response to use is an example of
a. atrophy.
b. hypertrophy.
c. muscular endurance.
d. muscle engorgement.
e. hyperplasia.
Q. 8Athletes can safely add muscle tissue by
a. tripling protein intake.
b. taking hormones duplicating those of puberty.
c. putting a demand on muscles repeatedly by making them work harder.
d. relying on protein for muscle fuel and decreasing intake of carbohydrates.
e. exercising to exhaustion and then relying on electrical stimulation for further muscle building.
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