Explain why exercise does not offset the detrimental effects of cigarette smoking
What will be an ideal response?
Smoking greatly decreases the ability of the blood to transport oxygen to working muscles. Oxygen is carried in the circulatory system by hemoglobin, the iron-containing pigment of the red blood cells. Carbon monoxide, a by-product of cigarette smoke, has 210 to 250 times greater affinity for hemoglobin over oxygen. Consequently, carbon monoxide combines much faster with hemoglobin, decreasing the oxygen-carrying capacity of the blood. Chronic smoking also increases airway resistance, requiring the respiratory muscles to work much harder and consume more oxygen just to ventilate a given amount of air. If a person quits smoking, exercise does help increase the functional capacity of the pulmonary system.
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If sufficient protein is already being consumed, a 500-calorie increase of _____ should be eaten to optimize muscle mass gain
a. complex carbohydrates b. omega-3 fats c. simple sugars d. soluble fiber
Serena has been weight training for several months. Which one of the following results would she be MOST likely to notice?
A. a significant increase in muscle size B. an increase in strength C. an increase in overall fat levels D. an increase in testosterone levels
What was any one of the components of the Lifetime Health- Related Lifetime Physical Fitness Test?
What will be an ideal response?
A physician orders 400 mg/kg/day of a drug for a small adult who weighs 100 lb. How many milligrams of this drug should the patient be administered in one day?
What will be an ideal response?