MEDizzy
MEDizzy
USMLE
Diet and Exercise
A 78-year-old woman with hypertension presents for a 3-month follow-up visit for her hypertension. A year ago, she moved to a retirement community, where she began to eat meals more regularly; during the past year, she has gained 15 lb. She is sedentary. She weighs 174 lb, and her height is 5 ft 1 in. She is a lifelong smoker; she smokes one pack of cigarettes a day and has repeatedly refused to receive counseling regarding smoking cessation. She has occasional stiffness on waking in the morning. Her blood pressure is 120/80 mm Hg. She reports taking the prescribed antihypertensive therapy almost every day. She is concerned about her weight gain because this is the most she has ever weighed. She has reported that she has stopped eating desserts at most meals and is aware that she needs to reduce the amount of fat she eats. She has never exercised regularly, but her daughter has told her to ask about an aerobic exercise program. She has asked for exercise recommendations, although she does not know whether it will make much difference. Which of the following would you recommend for this patient?
Explanation
ExplanationChanges attributed to aging closely resemble those that result from inactivity. In sedentary patients, cardiac output, red cell mass, glucose tolerance, and muscle mass decrease. Systolic blood pressure, serum cholesterol levels, and body fat increase. Regular exercise appears to retard these age-related changes. In elderly individuals, physical activity is also associated with increased functional status and decreased mortality. Although more studies are needed to clarify the effects of exercise on the elderly, enough evidence exists to war- rant a recommendation of mild exercise for this patient, along with counseling concerning the benefits of exercise at her age. Walking programs increase aerobic capacity in individuals in their 70s with few injuries. Although structured exercise is most often recommended by physicians, recent studies demonstrate that even modest levels of physical activity such as walking and gardening, are beneficial. Such exercise is protective even if it is not started until midlife or late in life. Because this patient is used to a sedentary lifestyle and is not strongly motivated to begin exercising, compliance with exercise recommendations may be an issue. Lifestyle interventions appear to be as effective as formal exercise programs of similar intensity in improving cardiopulmonary fitness, blood pressure, and body composition. Exercise does not appear to cause or accelerate osteoarthritis. However, counseling concerning warm-up stretches and a graded increase in exercise intensity can help prevent musculoskeletal problems as a side effect of exercise.
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