A physician has encouraged an obese client to join an aerobic exercise class to promote cardiorespiratory conditioning, reduce fat, and increase lean muscle mass. Which of the following fitness exercises is most suitable for the client?
A) Passive ROM exercises
B) Isometric exercise
C) Isotonic exercise
D) Submaximal exercise
C
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Isotonic exercise is most suitable for an obese client, as it involves movement and work. The prime example is aerobic exercise, which involves moving all body parts at a moderate to slow speed without hindering the ability to breathe. To promote cardiorespiratory conditioning and increase lean muscle mass, a person should perform isotonic exercise at his or her target heart rate. Isometric exercise does not promote cardiorespiratory conditioning; in fact, strenuous isometric exercises elevate blood pressure temporarily. Passive ROM will not achieve the identified health goals. "Submaximal" is not a category of exercise.
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