Which of the following most accurately represents the current state of exercise in the United States?
Only 20% of the population engages in physical activity sufficient to promote aerobic fitness.
Physical activity guidelines for Americans recommend _________ hours per week of moderate-intensity or __________ hours per week of vigorous-intensity exercise
2.5, 1.25
A graded exercise test is usually conducted using a
treadmill
Which of these techniques is NOT commonly used to help confirm the presence of CAD after abnormalities are seen in a graded exercise test?
echocardiogram
Imaging technology when added to a graded exercise test (GXT)
increases both the sensitivity and specificity
Tom is 57 years old. He lost his father to heart disease at 62 and quit smoking 3 months ago. His blood pressure is 132/74 and his total cholesterol is 247 mg/dl. How many risk factors for CAD does Tom have?
3
Molly is a 34-year-old teacher. She is 5 feet 6 inches tall and 157 pounds. She walks her dog twice each day for 45 minutes. Her blood pressure is 117/83, her total cholesterol is 175 mg/dl, and her HDL is 65 mg/dl. She is concerned about heart disease be
0
The overall minimal amount of exercise necessary for producing physiological benefits is called the
threshold
Which of these is NOT a prescribed mode of aerobic endurance exercise?
Golfing
Exercise modes should be
Enjoyable
Optimal exercise duration for aerobic health benefits is
20 to 30 min per day
For most people, the appropriate exercise intensity for aerobic health benefits is
40% to 80% VO2 max
As little as______ minutes of continuous sitting has been found to negatively affect physiology.
30
A drawback of using MET calculations for estimating exercise intensity is that they
fail to account for physical conditioning
A rating of 15 to 16 on the Borg RPE scale means that exercise is
Hard
A good warm-up can reduce
muscle and joint soreness
Which of these recreational activities would also be good for endurance training?
hiking
How is a proper starting point determined for resistance training?
10 reps at 1/2 1RM leads to fatigue
A recreational activity should be all of the following EXCEPT
too difficult to perform well
In which of these clinical populations might exercise NOT be used in rehabilitation?
anorexia nervosa patients
Everyone should undergo a medical examination before starting an exercise program.
False
Medical evaluations can provide motivation for sticking with an exercise routine.
True
A treadmill GXT is the most common type of exercise testing.
True
Exercise ECGs have limited value in young and healthy populations.
True
Aerobic exercise below the minimum threshold will not yield significant improvements in aerobic capacity.
True
Preconditioning often uses common modes of aerobic exercise.
True
Regular exercise counteracts the negative effects of prolonged sitting.
False
The Karvonen method for calculating THR involves maximal heart rate reserve.
True
RPE is a simple but not very accurate method of monitoring exercise intensity.
False
Golf, bowling, and softball are acceptable modes of exercise for aerobic training.
False