Decrease risk of osteoporosis Risks of taking and

Decrease risk of osteoporosis risks of taking and

This preview shows page 61 - 71 out of 71 pages.

Decrease risk of osteoporosis Risks of taking dehydroepiandrosterone and androstenedione Breast enlargement Prostate enlargement in males Facial hair in females
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SUPPLEMENT USE AMONG ADOLESCENTS Benefits of growth hormone Decreases subcutaneous fat Strengthens ligaments and tendons Side effects Physeal (growth plate) closure Hyperlipidemia Glucose intolerance Myopathy
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SUPPLEMENT USE AMONG ADOLESCENTS Creatine Sold as supplement to increase lean body mass Naturally formed in liver and kidneys Main dietary sources are meats Studies show mixed results on benefits, with most showing positive benefits; however, has been understudied in adolescents Side effects are numerous Chronic use may be associated with renal damage Ephedrine was banned as an over-the-counter supplement in 2004 Does increase metabolic rate, but no known benefits to athletic performance Side effects include cardiac arrhythmia, hypertension, increased risk of myocardial infarction, cerebral vascular accidents, and death
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NUTRITION FOR ADOLESCENT ATHLETES More than half of U.S. adolescents report playing one or more sports 60 percent of males 49 percent of females High levels of physical activity, growth, and development Increase adolescents’ needs for energy, protein, and select vitamins and minerals
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NUTRITION FOR ADOLESCENT ATHLETES Competitive athletes may need 500-1500 additional calories per day Protein should supply no more than 30 percent of calories in the diet Special concern for vegan athletes or diets that restrict caloric intake to maintain a particular weight
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NUTRITION FOR ADOLESCENT ATHLETES Dietary intakes of athletes should follow the MyPlate May need upper limit of food group servings; increased energy needs Eat pre-event meal at least two to three hours prior to exercise Post-event meals should contain 400-600 calories, high- carbohydrate foods, and noncaffeinated fluids
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NUTRITION FOR ADOLESCENT ATHLETES Calcium Shown to be below DRIs in a significant proportion of adolescents Those who do not consume calcium from dietary sources should take a daily calcium supplement Fluid level and dehydration Adolescents are at risk for dehydration Do not regulate body temperatures well Ignore physiological signs of fluid loss May be unaware of need for fluids
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SPECIAL DIETARY CONCERNS AMONG ADOLESCENTS Substance use Use of tobacco, alcohol, and recreational drugs can affect nutritional status Illicit drug use is reported by a significant number of adolescents Increases disordered eating risks
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SPECIAL DIETARY CONCERNS AMONG ADOLESCENTS Iron-deficiency anemia: most common nutritional deficiency Risk factors Rapid growth Inadequate intake iron or vitamin C foods Vegan diets Caloric restriction and meal skipping Participation in strenuous sports Heavy menstrual bleeding
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SPECIAL DIETARY CONCERNS
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  • Spring '14
  • Wilson,JX

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