The nurse is instructing the client with polycythemia vera how to perform isometric exercises such as contracting and relaxing the quadriceps and gluteal muscle during periods of inactivity
What does the nurse understand is the rationale for this type of exercise? A) Isometric exercise programs are inclusive of all muscle groups and have an aerobic effect to increase the heart rate.
B) Isometric exercise decreases the workload of the heart and restores oxygenated blood flow.
C) This type of exercise increases arterial circulation as it returns to the heart.
D) Contraction of skeletal muscle compresses the walls of veins and increases the circulation of venous blood as it returns to the heart.
D
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Isometric exercise induce contraction of skeletal muscle so that it compresses the walls of veins and increases the circulation of venous blood as it returns to the heart. Isometric exercises do not have an aerobic effect and should not increase the heart rate; although, it may increase blood pressure. Isometric exercise does not decrease the workload of the heart. Arterial flow moves blood flow away from the heart after being oxygenated.
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