NTR 555 Quiz 1
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School
North Carolina State University *
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Course
555
Subject
Health Science
Date
Feb 20, 2024
Type
Pages
4
Uploaded by CoachFox2804
As muscle cells grow and strengthen, they add more protein and... Select one: a. fewer acto-myosin complexes b. less sarcoplasmic reticulum c. amuch greater quantity of fat d. additional nucleii Sarcopenia, muscle atrophy, or loss of muscle mass can result from all of the following EXCEPT... Select one: a. photolysis, or increased exposure to sunlight. b. diseases like muscular dystrophy. c. anormal pattern of aging. d. becoming more sedentary. The energy cost of walking or running a mile at 2 mph or 5 mph is... Select one: a. about equal. b. greater at the higher speed because of wind resistance. c. less at the higher speed. d. greater at the higher speed because the change from walking to a running gait requires more muscles for propulsion. Another name for a muscle cell, i.e. the material inside a contiguous cell membrane, is... Select one: a. sarcomere b. myofibile c. muscle fiber d. biceps Most human muscles have both red and white muscle fiber. Match the muscle color with the characteristics red fibers slow twitch and aerobic 4 white fibers | fast twitch and anaerobic %
Physical activity reduces risk of developing ALL of the following chronic diseases EXCEPT Select one: a. Down's syndrome b. type 2 diabetes c. many types of cancer that are associate with excess body fat d. osteoporosis The term for a unit of physical activity, that is defined both as multiples of resting metabolic rate, and uptake of O2/kg/min/3.5, is MET Is a person had an average daily Physical Activity Level that was 75% more than their metabolic rate at rest, they would be classified as... Select one: a. Sedentary b. Low Active c. Very Active d. Active
Physical activity defies the law of diminishing returns because a quantitative increase of a unit of physical activity improves the long-term health outcomes of an active person to the same extent that the same unit of activity improves the health of a sedentary person. Select one: True False According to the 2008 Physical Activity Guidelines which of the following statements would be FALSE? Select one: a. Some physical activity is better than none. b. For most health outcomes, addition benefits occur as the amount of physical activity increases through greater frequency, higher intensity, and/or longer duration. c. Benefits of exercise must be weighed against the high risk of adverse outcomes. d. Both endurance and muscle strengthening activities are beneficial. If a sedentary individual becomes physically active with no change in diet, their nutrient balance is most likely to become Select one: a. zero (synthesis = degradation) b. negative c. positive d. Impossible to predict
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Quality research on nutritional effects on sport performance should include which of the following: Select one: a. Only short term effects, like a pre-race meal. b. Changing several foods and behaviors at the same time. c. Alimited number of elite athletes. d. A statistically significant number of subjects in a blinded placebo controlled study with quantifiable outcomes. Physical activity has been incorporated as part of US Federal public health nutrition policy based on ALL of the following publications EXCEPT: Select one: a. the 2000 edition of the Dietary Guidelines for Americans b. the 1992 Food Guide Pyramid c. 2008 Physical Activity Guidelines for Americans Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids (Macronutrients) (2005)