What best describes aerobic exercise?
Movement of large muscle groups which increase the body's use of oxygen
Lengthening of muscles using slow, controlled movements
Any activity not related to a person's occupation
A form of exercise in which our muscles work against resistance
The Correct Answer is A
A. Aerobic exercise involves continuous, rhythmic movements of large muscle groups, such as those in the legs and arms, that increase the body’s demand for oxygen. This type of exercise improves cardiovascular and respiratory efficiency, increases endurance, and helps with weight management. Examples include running, swimming, cycling, and brisk walking. During aerobic exercise, the heart rate and breathing rate increase to supply sufficient oxygen to working muscles.
B. Lengthening muscles using slow, controlled movements describes stretching exercises, which improve flexibility but do not primarily enhance cardiovascular endurance or oxygen utilization.
C. Physical activity not related to a person’s occupation is simply recreational or leisure activity. While some recreational activities can be aerobic, this description does not define aerobic exercise itself.
D. Exercise in which muscles work against resistance describes anaerobic or resistance training, such as weightlifting or strength training. While these activities build muscular strength and power, they do not primarily rely on oxygen for energy production.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Swiss cheese is very high in calcium and supports bone health, but it is an animal-derived product. Vegans avoid all dairy products, so Swiss cheese would not be appropriate for a vegan client. Regular consumption could also increase saturated fat intake, which is another consideration for overall health.
B. Yogurt is a good source of calcium, protein, and probiotics, but it is also a dairy product and therefore excluded from a vegan diet. Non-dairy fortified alternatives like soy, almond, or oat yogurt could be considered, but plain dairy yogurt itself is not vegan-friendly.
C. Collard greens are a plant-based food rich in calcium, making them an excellent choice for vegans. One cup of cooked collard greens provides roughly 266 mg of calcium, along with vitamins A, C, K, and dietary fiber. Other calcium-rich plant sources include kale, bok choy, turnip greens, fortified plant milks, tofu set with calcium salts, almonds, and sesame seeds. While plant-based calcium may be slightly less bioavailable than dairy calcium, a varied diet with multiple sources can meet daily requirements. Incorporating these foods supports bone density, nerve function, and overall metabolic health in vegan clients.
D. Sardines are rich in calcium, especially because of their edible bones, and also provide vitamin D and omega-3 fatty acids. However, they are an animal product and therefore not suitable for a vegan diet.
Correct Answer is A
Explanation
A. These fish are high in mercury, a heavy metal that can cross the placenta and harm the developing fetal nervous system. Mercury exposure during pregnancy is associated with impaired cognitive development, delays in walking and talking, and other neurological deficits. Pregnant women are advised to avoid shark, swordfish, tilefish, and king mackerel to minimize these risks.
B. While these fish are high in protein, protein itself is beneficial during pregnancy and is not a reason to avoid these fish. The concern is specifically related to mercury content, not protein.
C. These fish are not low in minerals. In fact, fish generally provide important nutrients like selenium, iodine, and omega-3 fatty acids, which are beneficial during pregnancy.
D. Digestibility is not the issue. The problem is the potential toxic effect of mercury, not the difficulty of digesting the fish.
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