Deck 7: Principles of Aerobic Exercise

Question 1

The ability of the body to transport and use oxygen during physical and aerobic activities is an indicator of physical fitness and is measured most commonly using which unit of measure?

A)Metabolic equivalents (METs)
B)Kilocalorie
C)Maximum oxygen consumption (VO₂ mₐₓ)
D)Blood pressure and heart rate

Answer 1

C

Question 2

Your patient is a sedentary 52-year-old man who smokes a pack of cigarettes a day and has a family history of cardiovascular disease.The most appropriate method of determining his cardiovascular fitness is:

A)Distance run in 12 minutes.
B)Heart rate following 6 minutes of fast walking.
C)Sample expired air during multistage treadmill testing to provide a direct measure of VO₂ mₐₓ
D)Time required to run 1.5 miles.

Answer 2

C

Question 3

Which of the following is a correct statement about maximum heart rate and exercise heart rate?

A)The most accurate method of determining maximum heart rate is by using the formula 220 minus age.
B)Karvonen's formula (heart rate reserve) is used to determine maximum heart rate.
C)If a young or middle-aged individual is carefully screened and has been jogging or running for some time, it is appropriate to use the results of a submaximal field test to determine maximum heart rate.
D)Individuals with cardiopulmonary disease should have a target exercise heart rate of at least 70% of their maximum heart rate.

Answer 3

C

Question 4

Your patient has poor upper quarter posture, and you are training the scapular depressors in order to improve thoracic and scapular position for postural control.Against low resistance, the scapular depressors are muscle setting for 60 seconds.What muscle fibers primarily are recruited during this activity?

A)Type I
B)Type IB
C)Type IIA
D)Type IIB

Question 5

Each of the following is true about the inpatient cardiac rehabilitation program for a patient who has had a myocardial infarction except:

A)Inpatient phase begins after the patient's cardiovascular status has been stabilized and while the patient is hospitalized.
B)Inpatient cardiac rehabilitation usually lasts at least 7-10 days.
C)A purpose of cardiac rehabilitation while the patient is still hospitalized is to initiate patient education about reducing risk factors.
D)Inpatient cardiac rehabilitation often involves manually monitoring the heart rate, ventilation, and blood pressure and electrocardiographically monitoring the heart during standing activities and low-intensity supervised ambulation.

Question 6

A patient referred to you in your home-health practice needs to spend the next 8 weeks on bed rest because of complications of pregnancy.You design an exercise program to reduce the adverse effects of prolonged bed rest.Which of the following is least likely to occur as the result of deconditioning from prolonged bed rest?

A)Loss of muscle mass
B)Orthostatic hypotension
C)Decreased bone mineral density
D)Laxity of ligaments

Question 7

Which of the following is correct about the intensity of exercise and achieving a conditioning response?

A)For a young, healthy individual, training at an intensity of 70% maximum heart rate is considered the maximum-level stimulus for a safe training program.
B)If an adult is young, healthy, and accustomed to exercise, training at 100% of the maximum heart rate is recommended to achieve a conditioning response.
C)For a sedentary, deconditioned individual, an initial training intensity at 70% of the maximum heart rate is the level of training typically required to achieve a conditioning response.
D)For a sedentary, deconditioned individual, low-intensity exercise at the 40% to 60% level is usually sufficient to induce an initial conditioning response.

Question 8

A stress test should be terminated if:

A)There is a significant drop in systolic blood pressure in response to an increasing workload.
B)Cheeks become flushed.
C)Blood pressure increases 7 to 10 mm Hg per MET of physical activity.
D)Respiratory rate and depth increase without shortness of breath.

Question 9

If jogging for 20 minutes requires 50 units of work output and 200 units of work input, what is the exercise efficiency?

A)2%
B)2.5%
C)20%
D)25%

Question 10

A carefully planned exercise program includes three components: the warm-up, aerobic period, and the cool-down.Which of the following is a true statement about an exercise program that is carefully planned?

A)It can slow the decrease in functional capacity of the elderly individual.
B)The cool-down period is intended to encourage rapid return of blood to the extremities.
C)A program of continuous training is the most effective way to improve aerobic conditioning.
D)Venous return is reduced during the warm-up period as blood flow is shifted centrally from the periphery.

Question 11

Which of the following statements is correct about the use of arm exercises (upper extremity ergometry) versus leg exercises (treadmill walking, bicycling) in a cardiac rehabilitation program?

A)There are no differences in responses of the cardiopulmonary system with arm exercises versus leg exercises.
B)Myocardial O₂ consumption (heart rate ´ systolic blood pressure) is higher with arm exercises than with leg exercises.
C)Myocardial efficiency is lower with arm exercises than with leg exercises.
D)Patients with coronary artery disease typically are able to complete less work with leg exercises than arm exercises before symptoms occur.

Question 12

Aerobic exercise training (cardiorespiratory endurance) is defined as improvement in the energy utilization of the muscle by means of an exercise program.Which of the following is true of this type of training?

A)It is dependent on sufficient intensity, time, and frequency of exercise.
B)A person with an initial high level of fitness has more potential to improve than one with a low level of fitness.
C)It produces significant crossover effects from one physical activity to another.
D)It requires at least 6 months of progressive training for evidence of improvement.

Question 13

As part of a circuit weight training program, your patient performs 2 sets of 10 repetitions of biceps curls at 70% of a 1 repetition maximum (RM), resting briefly between sets.Which of the following energy systems is primarily being used?

A)Phosphagen system
B)Anaerobic-glycolytic system
C)Aerobic system
D)ATP-PC (adenosine triphosphate-phosphocreatine) system

Question 14

Principles of stress testing include each of the following except:

A)The workload initially used in the test is low compared with an individual's anticipated aerobic threshold.
B)To increase the workload during treadmill testing, the speed and/or incline are increased.
C)Each successive workload level is maintained for no more than 30 seconds.
D)Testing is terminated at the onset of symptoms, or definable abnormalities are noted on the electrocardiogram.

Question 15

Mary is 30 lb overweight and wants to start exercising for fitness and to lose weight before her high school class reunion next year.For motivation, she has set a specific goal to run a 10K race in 6 months.The best method of training for this event would be:

A)Bicycling 2 days a week and fast walking 4 days a week.
B)Fast walking, progressing to running 5 to 6 days a week.
C)Bicycling and running 3 days a week for each activity.
D)Swimming 1 day a week, bicycling 2 days a week, and running 3 days a week.

Question 16

Four methods of training are known to challenge the aerobic system.Which method of training is characterized by a period of exercise followed by a brief period of relief?

A)Continuous
B)Interval
C)Circuit
D)Circuit-interval