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Test 2#

Akasya Benge Stat I Englisch 170 Karten

Karten in diesem Stapel (170)

  1. 1Organs and Their Roles in Metabolism● Digestive organs
    ● Liver
    ● Pancreas
    ● Heart and Blood Vessels
    ● Kidneys
  2. 2Metabolic Work - Building and Breaking Anabolism“Building”
  3. 3“Building”● Glucose → Glycogen
    ● Glycerol + Fatty Acids → Triglycerides
    ● Amino Acids → Proteins
    ● Require Energy
  4. 4Catabolism“Breaking”
    ● Glycogen → Glucose
    ● Triglycerides → Fatty Acids + Glycerol
    ● Proteins → Amino Acids
    ● Release Energy
  5. 5Energy Metabolism● Sum of all reactions the body uses to obtain or expend energy
    ○ Energy-yielding nutrients broken into basic units and absorbed into the blood
    ○ Use those nutrients to make...
  6. 6● Adenosine Triphosphate○ High Energy Compound
    ○ Transfers usable energy to muscles
    ○ Supplies enzymes with energy needs for chemical reactions
    ○ Produced continuously throughout the day
  7. 7FeastingFat Cell Enlargement
  8. 8Fasting● Glycogen stores and fatty acids from adipose tissue: used initially to fuel the body
    ○ Glycogen used first
    ■ Nervous system requires glucose for energy
    ■ Liver & muscle tissue breakdown to provide glucose for the brain
    ● Ketone body production increases as fast continues
    ● Protein breakdown
    ● Slowed metabolism
  9. 9Hazards of Fasting● Wasting away of lean tissue
    ● Impairment of disease resistance
    ● Lower body temperature
    ● Disruption of body’s fluid and electrolyte balances
  10. 10Energy Balance• Maintaining a healthy weight over time
  11. 11Energy InFood and beverages we consume
    • Must become familiar with energy content of the food we eat
    • Diet tracking
  12. 12Basal Metabolic Rate (BMR)● Rate of body’s energy use for life sustaining activities
    ○ Beating of heart, maintenance of body temp, etc.
    ○ Measured in kcal per kg body weight per hour
    ○ Measured under specific conditions
  13. 13Resting Metabolic Rate (RMR)● Similar to BMR but less restrictive about fasting and physical activity
    ● Measured when at rest
  14. 14Factors that affect BMR● Age
    ● Body Weight/Height, Muscle Mass
    ● Gender and hormones
    ● Activity
    ○ Voluntary - conscious and deliberate
    ○ Duration, Frequency, Intensity
  15. 15Defining Healthy Body WeightBody Mass Index
    • Describes weight in relation to height
  16. 16Underweight< 18.5 BMI
  17. 17Healthy weight18.5-24.9 BMI
  18. 18Overweight>24.9 BMI
  19. 19Central Obesity• Fat stored deep within central abdominal area
    • Linked with heart disease, cancer, and diabetes
  20. 20• Measure of body composition• Waist circumference - central obesity
    • Skin fold measures - total body fat and location
  21. 21Ideal amount of body fat:depends partly on the person
  22. 22● Body fat for recommended BMI○ Men - 13 to 21 percent
    ○ Women - 23 to 31 percent
    ○ Athletes
    ■ Men - 5 to 10 percent
    ■ Women - 15 to 20 percent
  23. 23Health Risks of Underweight● Inability to preserve lean tissue when fighting a wasting disease, i.e. cancer
    ● Menstrual irregularities and infertility
    ● Osteoporosis and bone fractures
    ● Eating Disorders
    ○ Anorexia nervosa
  24. 24Risks of Obesity● Hypertension, Increased blood pressure
    ● High blood lipids
    ● Some cancers
    ● Sleep apnea
    ● Complications in pregnancy and surgery
    ● Social & Economic handicaps
  25. 25The Vitamins–An Overviewo Not energy yielding (nonkcaloric)
  26. 26Facilitators of body processes• Promote growth, reproduction, and the maintenance of health and life
  27. 27o Essential• Needed from foods
  28. 28Potent• Only trace amounts needed trace amounts to perform specific functions
  29. 29• Structure of Vitamins• Individual units
    • Not linked together like glucose and amino acids
  30. 30• Function• Do not yield energy when metabolized
  31. 31• Dietary intakes• Measure in micrograms or milligrams instead of grams
  32. 32Bioavailabilityo Rate and extent to which a nutrient is absorbed and used by the body
  33. 33o Factors affecting the bioavailability of a vitamin• Digestion efficiency and GI tract transit time
    • Previous nutrient intake and nutrition status
    • Other foods consumed at the same time
    • Method of food preparation (raw or cooked)
    • Nutrient source (naturally occurring, synthetic or fortified)
  34. 34o Fat Soluble• Vitamins A, D, E, and K
    o Usually occur together in fats and oils
    o Absorbed in the same manner as lipids
    • First into lymph then bloodstream
    o Stored in the liver and fatty tissues
    o Not readily excreted
    o Can build up to toxic concentrations
  35. 35o Water Soluble• Vitamins B and C
    • Solubility affects methods of absorption, transport, storage and excretion
  36. 36Organic Nature of Vitaminso Because vitamins are organic they can be destroyed during processing
    Thiamin, riboflavin, Vit C
  37. 37Precursors of Vitamins Compounds that can be converted into other compounds
     What happens ?
    Inactive forms of vitamins are available in foods and converted into active form once inside the body
  38. 38Vitamin Ao Beta-carotene is a precursor of vitamin A
    o Sources: liver, fish oil, milk, cheese, etc.
    o Vitamin A functions
    • Gene regulation: retinoic acid
    • Vision: cornea and retina health
    • Protein synthesis and cell differentiation
    • Immunity: “anti-infective” vitamin
    • Reproduction, growth, and development
  39. 39Vitamin A Deficiency• Major cause of preventable blindness
    • Drying and hardening of cornea
    • Affects all epithelial surfaces
    • Cells harden and flatten
    • Drying out of mucous membranes and lining of digestive tract
    • Susceptibility to infection
  40. 40Vitamin A Toxicityo Possibility when consuming preformed vitamin A
    o Food derived from animals, fortified foods or supplements
    o Teratogenic risk (cause birth defects)
    • Abnormal fetal development
    o Weakens bones
    o Sources
    • Vitamin A: Beta-carotene
  41. 41Beta-Caroteneo Dietary Antioxidant
    • Protects other compounds from oxidation by reacting with oxygen itself
    • Food forms: may prevent cancer
    o Sources: carrots, apricots, spinach, etc.
    o Low risk of toxicity
    o Body cannot convert it into active form fast enough to be toxic
    o Excess can turn skin orange/yellow
  42. 42Vitamin Do Body can synthesize with help of sunlight
    NONESSENTIAL
    o Active vitamin form
    • Requires conversions by the liver and kidneys
    o Actually a hormone
    • Manufactured by one organ and has effects on another
  43. 43Vitamin Do Functions:
    • Bone growth and maintenance
    • Assists with absorption of calcium and phosphate
    • Regulates blood concentrations of bone minerals
  44. 44Vitamin D Deficiencyo U.S. population: almost 10 percent deficient
    o Contributing factors
    • Dark skin, breastfeeding without supplementation, lack of sunlight, and not using fortified milk
  45. 45Vitamin D Deficiency Diseases• Rickets
    • Osteomalacia
    • Osteoporosis
  46. 46Vitamin D Toxicityo Excess blood calcium: calcification
    o Maintain adequate vitamin D
    • Sunlight
    • Foods sources
    • Eggs, liver, butter, some fatty fish, and fortified milk
  47. 47Vitamin Eo Antioxidant
    • Protects the lungs (where cells are exposed to high concentrations of oxygen and pollutants)
    o Deficiency
    • Erythrocyte hemolysis: in premature infants
    • Diseases associated with malabsorption of fats in adults
  48. 48Vitamin Eo Toxicity
    • Interferes with blood clotting
    o Sources
    • Vegetable oils, wheat germ, whole grains, etc.
  49. 49Vitamin Ko Functions
    • Blood clotting
    • Bone protein synthesis
    o Intestinal tract bacteria synthesize vitamin K
    • Insufficient as a sole source
    o Deficiency can be caused by
    • Fat malabsorption
    • Antibiotics
  50. 50Vitamin K - Nutrition for newborn• Born with sterile digestive tract (no bacteria to supply Vit K)
    • Single dose given a birth
  51. 51Vitamin K - Toxicity• Tolerable Upper Intake Level: not established
  52. 52Vitamin K Sources• Green leafy vegetables, cabbage, some vegetable oils, etc.
  53. 53The Water-Soluble Vitaminso B vitamins and vitamin C
    o Found in water compartment of foods
    o Easily absorbed into the bloodstream
    o Easily excreted when blood concentrations rise too high
    • Less likely to reach toxic levels
  54. 54B Vitamins - Deficiencies• Thiamin B1 ► beriberi
    • Caused by rice polishing
    • Niacin B3 deficiency ► pellagra
    • Diets based on refined grain
    • Adding nutrients (fortification) can reduce incidents of deficiency
  55. 55B Vitamins - Functions• Help the body use energy-yielding nutrients
    • Component in coenzymes
    • Combine with enzymes to make them active
    • Help cells multiply
    • Assist enzymes in performing molecular conversions
  56. 56Thiamin B1o Coenzyme with critical role in energy metabolism
    o Necessary for normal nerve and muscle functioning
    o People who are malnourished are most likely to develop a thiamin deficiency
    • Diets based on empty calories
    o Food sources
    • Pork, whole grain or enriched bread and cereals; small amounts in nearly all nutritious foods
  57. 57Riboflavin B2o Coenzyme important for energy metabolism
    o Deficiency
    • Cracks at corners of mouth and sore throat
    o Food sources
    • Milk, enriched breads and cereals, green vegetables, meats, etc.
    o Light sensitive, but heat stable
  58. 58Niacin B3o Needed by every cell: energy metabolism
    o Body can produce niacin from protein
    • Niacin equivalents (NE)
    o Tolerable Upper Intake Level: 35 mg NE
    o Medicinal uses
    • Lower blood cholesterol
    • Treat atherosclerosis
    o Food sources
    • Meat, poultry, fish, legumes, enriched and whole grains, etc.
  59. 59Pantothenic Acid B5 and Biotin B7o Coenzymes important in energy metabolism
    o Food sources
    o Widespread in foods
  60. 60Vitamin B6o Functions
    • Protein and amino acid metabolism
    • Amino acid conversion to other lacking amino acids
    • Synthesis of hemoglobin and neurotransmitters
    o Heat sensitive: lost in heated foods
  61. 61o Deficiency symptoms• Weakness, depression, confusion, irritability, etc.
  62. 62o Food sources• Protein-rich meat, fish, poultry, etc.
  63. 63Folate (folic acid , Vit B9)o Active in cell division
    o Negative impact on folate status
    • Alcohol
    • Medications: aspirin, oral contraceptives, & anticonvulsants
    • Smoking
    o Prevents neural tube defects (NTD)
    o Tolerable Upper Intake Level
    • 1000 µg/day from fortified foods and supplements
    o Best food sources
    • Liver, legumes, beets, and leafy green vegetables
  64. 64Vitamin B12 Needed for cell division
     B12 regenerates active form of folate
     Maintains nerve fibers
     Requires intrinsic factor for absorption
     Food sources
     Found exclusively in animal-derived foods
  65. 65Non- B Vitamins Non-B vitamins
     Serve as coenzymes in metabolism
     Inositol, choline, and carnitine
     Others
     Para-aminobenzoic acid (PABA), bioflavonoids (vitamin P or hesperidin), and ubiquinone
  66. 66 Vitamin C Antiscurvy factor: ascorbic acid
     Multiple roles and modes of action
     Collagen formation
     Antioxidant
     Amino acid metabolism
     Possible antihistamine
     Cancer prevention and treatment
  67. 67 Vitamin C deficiency Affect on blood vessels
     Bleeding gums and pinpoint hemorrhages
     What are symptoms of scurvy?
  68. 68 Vitamin C toxicity Megadoses: toxic effects unconfirmed
     Vitamin C RDA
     Men: 90 mg Women: 75 mg
     Increased need for vitamin C
     Infections, burns, surgery, extremely high or low temperatures, toxic doses of heavy metals, smoking, etc.
     Safe limits
     100 to 300 mg per day
     Vitamin C food sources
     Many fruits and vegetables
     How does vitamin C impact iron absorption?
  69. 69Function of Body Fluids Carries nutrients and waste products
     Maintains the structure of large molecules
     Serves as the solvent for:
     Minerals, vitamins, amino acids, glucose, and many other small molecules
     Maintains blood volume
     Aids in normal body temperature regulation
     Acts as a lubricant and cushion
  70. 70Water Balance Cells regulate amount of water inside and outside~ a delicate balance that the healthy body can manage
  71. 71Water intake regulation Thirst and satiety govern water intake
     Physiological cues ~
     Hypothalamus: initiates drinking~ regulates body temp, appetite
  72. 72Water imbalances Dehydration
     Water intoxication: hyponatremia
  73. 73Water Excretion Regulated by the brain and kidneys ~ Hormones involved in water balance
     Hypothalamus monitors blood salts
     Pituitary gland releases antidiuretic hormone (ADH) when salts are too high or blood volume is too low
     ADH stimulates the kidneys to reabsorb water instead of excreting it
  74. 74Average water loss per day: ?2 ½ liters : urine, lungs , skin, waste
  75. 75Adequate Intake (AI) for TOTAL water Men: 3.7 liters/day
     Women: 2.7 liters/day
  76. 76Sources for water Water, caffeinated beverages, foods, milk, juices, etc.
  77. 77Body Fluids Electrolyte solutions: contain salts
     Regulated closely
     Proteins in the cell membranes: move ions into or out of the cells
     Kidneys regulate sodium and water
     How does the body’s total electrolytes compare to the urinary electrolytes? Body electrolytes remain constant & urinary electrolytes fluctuate
     Electrolyte mixtures act as pH buffers and protect the body
  78. 78Major & Trace Minerals What is the distinction between major minerals and trace minerals? Essential and needed in amounts > 100 mg / day
     All major minerals (Table 9-7)
     Influence the body’s fluid balance
     Have other specific roles
  79. 79Sodium Principal electrolyte in the extracellular fluid
     Primary regulator of the extracellular fluid volume
     Acid/Base regulation
     Sodium AI ( Adequate Intake)
     1500 mg/day (19-50 yr)
     Principal positively charged ion inside the cells
  80. 80Average U.S. intake of sodium3400 mg/day
    Sodium
  81. 81Top contributors of sodium Breads, cold cuts, pizza, poultry, soups, etc.
  82. 82What is the correlation between sodium intake and hypertension? “How To” Cut Salt Intake; DASH approach
  83. 83Chloride Major negative ion of the extracellular fluids
     Maintains fluid, electrolyte, and acid-base balances
     Found in gastric fluids (HCL)
     Major source: salt
  84. 84Potassium Maintains fluid and electrolyte balance and cell integrity
  85. 85Homeostasis of Potassium Distribution inside and outside the cell
  86. 86Deficiency of Potassium Increase in blood pressure, salt sensitivity, kidney stones, bone turnover, etc.
  87. 87Toxicity of Potassium Result of overconsumption of salts or supplements, diseases, or medications
  88. 88Best sources of Potassium Fresh fruits and vegetables
     Prevent and correct hypertension
     Ample potassium with low sodium
  89. 89Prevent and correct hypertension of potassium Ample potassium with low sodium
     DASH approach
  90. 90Calcium Most abundant mineral in the body
     Integral part of bone structure and serves as a calcium bank
     Bone formation
     Calcium salts form crystals on a protein collagen matrix (Figure 9-3)
     Why is it incorrect to think of bones as being inert, e.g., similar to rocks?
  91. 91Ionized calcium in body fluids Regulates the transport of ions across cell membranes
     Helps maintain normal blood pressure
     Essential for muscle contraction (including heartbeat)
  92. 92High blood calcium levels Deposited into bone
  93. 93Regulatory system to counter low blood calcium• Small intestine absorbs more calcium.
    • Bones release more calcium into the blood.
    • Kidneys excrete less calcium.
  94. 94How is blood calcium affected by a chronic dietary deficiency of calcium?No affect, but calcium in bones is depleted
  95. 95Osteoporosis Women: may lose up to 20 percent of bone mass following menopause
     Why is osteoporosis more prevalent in women than in men?
     Prevention: adequate calcium and weight-bearing physical activity
  96. 96Calcium - Disease preventionHypertension, colon and rectal cancers
  97. 97Calcium RDA Adults (19–50 yr): 1000 mg/day
     Men (51–70): 1000 mg/day
     Women (51–70): 1200 mg/day
     Adults (>70): 1200 mg/day
  98. 98Milk and milk products Recommended: three cups of milk daily for adults…or not !
     Broccoli ! Kale ! Almonds ! Tofu !
     “How To” Add Calcium to Daily Meals
  99. 99Phosphorous Second most abundant mineral in the body
     Found in
     Bones, teeth, and all body tissues
     Part of DNA and RNA
     Important for energy transfer during cellular respiration
  100. 100Best sources for phosphorous Animal protein, milk, and cheese
     Dietary deficiencies are rare
  101. 101Magnesium Found in bones, muscles, heart, liver, and other soft tissues; small amount in body fluids
     Functions
     Enzyme functions and other cellular functions; needed for energy release in cells; required for normal heart function; etc.
  102. 102Deficiency symptoms of Magnesium Low blood calcium leading to muscle cramps and seizures
     May worsen inflammation due to chronic diseases
  103. 103Toxicity of Magnesium Rare, but can be fatal
     Diarrhea, abdominal pain, acid base imbalance
     Present in “hard water”
  104. 104Food sources of Magnesium Dark green, leafy vegetables; nuts; legumes; whole-grain breads and cereals; etc.
     Mg is easily lost during food processing
  105. 105Sulfate Needed for sulfur-containing compounds
     Amino acids
     Helps shape protein strands
     Skin, hair, nails, etc.
     No recommended intake
     No deficiencies known
  106. 106Trace Minerals Found in very small amounts
     Each performs vital role and cannot be replaced
     Deficiency or toxicity could be fatal
    Iron
  107. 107Hemoglobinred blood cell
  108. 108Myoglobin- muscle cells ~ stores 02 for muscle contraction
  109. 109Iron Powerful oxidant
     Generates free radical reactions
  110. 110 What is the role of the transferrin?Blood protein that carries iron to the tissues
  111. 111Hepcidincentral to iron balance in blood
     Hormone produced by liver
     Limits absorption of iron & controls release of iron
  112. 112Iron DeficiencyMost common nutrient deficiency
    Causes
    Inadequate intake and blood loss
    Assessment
    Low serum ferritin; increased transferrin level
  113. 113What is the difference between iron deficiency reduced iron stores & anemia reduced Hbg ?Pica may be present
    Do not self-diagnose
    Hemochromatosis: iron overload
    Iron poisoning~ too many iron pills ( usually children)
  114. 114Iron Deficiency Pica may be present
     Do not self-diagnose
     Iron poisoning
  115. 115Hemochromatosisiron overload
  116. 116Iron recommendations Men: 8 mg/day
     Women (childbearing years): 18 mg/day
  117. 117Iron forms in foods Heme iron~ absorbs faster, bound to proteins in meat , poultry , fish
     Nonheme iron~ absorbed slower , from plants and animals
     “How To” Add Iron to Daily Meals
  118. 118Zinc Required by more than 50 enzymes
     Needed
     To perform tasks in eyes, liver, kidneys, muscles, skin, bones, and male reproductive organs
     For making genetic material
     In blood clotting
     To produce active form of vitamin A
  119. 119Zinc DeficiencyNot widespread in developed countries
  120. 120Zinc ToxicityProduces copper-deficiency anemia: vomiting , diarrhea, exhaustion
  121. 121Zinc RDA Men: 11 mg/day
     Women: 8 mg/day
  122. 122Selenium Functions as an antioxidant nutrient
     Needed for:
     Proper functioning of the iodine-containing thyroid hormones
     Studies surrounding protection against cancer
  123. 123Deficiency of Selenium Causes predisposition to Keshan disease: heart disease
  124. 124High doses Of SeleniumToxic
  125. 125RDA for Adults of Selenium5 µg/day : Widespread sources
  126. 126IodineIntegral part of the thyroid hormones
  127. 127Deficiency of Iodine Goiter: enlargement of thyroid
     Preventable mental retardation
     Cretinism
  128. 128Excess of IodineAlso Enlarges thyroid gland
  129. 129RDA of Iodine150 µg/day
  130. 130Copper Primary function: constituent of enzymes
     Diverse metabolic roles
     Helps cells use iron
     Deficiency: rare
     Toxicity: may result from some genetic disorders
     RDA: 900 µg/day
  131. 131Manganese Cofactor for many enzymes
     Facilitate numerous metabolic processes
     AI: 2.3 mg/day (men); 1.8mg/day (women)
     Tolerable Upper Intake Level: 11 mg/day
  132. 132Fluoride Prevents dental caries
     Deficiency: high dental decay
     Sources: fluoridated water, toothpaste, etc.
  133. 133Chromium Essential in carbohydrate and lipid metabolism
     Enhances the activity of insulin
     Best sources
     Liver, brewer’s yeast, whole grains, nuts, and cheeses
     Deficiency : Diabetes – like symptoms
  134. 134Molybdenum Functions as a working part of several metal-containing enzymes
    Deficiencies and toxicity are unknown
     Other trace minerals that contribute to health
     Nickel, silicon, cobalt, boron, etc.
  135. 135Genetics: Influences eating behavior
     Impacts body composition
     Affects risk of obesity
     Two to three times higher with family history of obesity
     Interrelated with environment factors
  136. 136Lipoprotein lipase (LPL) enzyme Promotes fat storage
     More active LPL = more fat storage
     Higher level of activity in fat cells of obese people
     Excess energy intake has more profound effect
  137. 137LeptinObesity (ob) gene: codes for the protein leptin
    Hormone primarily produced and secreted by fat cells in proportion to the amount of fat stored
    ↑ body fat stimulates production of leptin
    Triggers hypothalamus to suppress appetite
    Gene deficiency has been link to obesity
  138. 138Leptin Resistancemore common in obese people
    Resistant to satiating effect
  139. 139Ghrelin Synthesized and secreted primarily by stomach
     Levels rise before a meal and fall after
     Opposite effect of leptin
     Triggers hypothalamus to stimulate appetite and promotes efficient energy storage
  140. 140Fat Cell Development Fat cells in obese people compared to healthy-weight people
     Higher number
     Larger fat cells
  141. 141 Environment All of the circumstances that people encounter daily that push them towards fatness or thinness
  142. 142 Overeating Readily available high-kcalorie foods
     Large serving sizes
     Energy dense foods
  143. 143Physiological Stimuli What is the difference between hunger and appetite?
     Satiation- tells us to stop eating
     Satiety- reminds us not to eat because we are full
     Food behavior is linked to emotional needs
     Emotions can override these cues
  144. 144Physical Inactivity Screen time
     Sedentary jobs
     Technology
     Physical activity displaced at home, at work, at school, and in transportation
  145. 145 Obstacles to physical activity and healthy foods Aspects of the built environment
  146. 146 National Academies’ Institute of Medicine National goals to counter obesity and improve the nation’s health
     Make physical activity an integral and routine part
    of American life
     Make healthy foods and beverages available
     Advertise and market what matters for a healthy life
     Activate employers and health-care professionals
     Strengthen schools as the heart of health
  147. 147Obesity Treatment: FactorsExtent of overweight, age, health, genetics, etc.
    Not every overweight person can become slender
    Must weigh the benefits and risks of weight loss
  148. 148Inappropriate Obesity Treatments Over-the-counter (OTC) weight-loss products
     Weight loss pills, powders, and other dietary supplements
     Often contain unsafe ingredients
     Other gimmicks
     Steam and sauna baths
     Brushes, sponges, wraps, creams, and massages
  149. 149Aggressive Treatments of Obesity Obesity drugs
     Beneficial with modest weight loss
     As part of a long-term, comprehensive weight-loss program
     Must consider risks of long-term use
     FDA-approved drugs for weight loss
  150. 150Aggressive Treatments of Obesity Most effective treatment for clinically severe obesity (morbid obesity)
     Surgery
     Gastric bypass
     Gastric banding
     Laparoscopic weight-loss surgery
     Significant, long-term weight loss; shortens recovery
     Less invasive than open surgery
  151. 151Reasonable Strategies for Weight Loss Must integrate
     Healthy eating patterns
     Physical activity
     Supportive environments
     Psychosocial support
  152. 152 Successful strategies Embrace small changes
     Moderate losses
     Reasonable goals
  153. 153Reasonable Strategies for Weight Loss Dietary Guidelines for Americans for weight loss
     Consume fewer kcalories from foods and beverages
     Increase physical activity
     Reduce time spent in sedentary behaviors
  154. 154 Reasonable goals to reduce weight to lower disease risk• Reduce body weight by about 10 percent over half a year’s time
    • Maintain a lower body weight over the long term
    • At a minimum, prevent further weight gain
  155. 155Healthful Eating Plan Realistic Energy Intake
     Provides less energy than the person needs to maintain present body weight
     Not too restrictive
  156. 156 Eating pattern for safely losing weight Men: 1600 kcalories per day
     Women: 1200 kcalories per day
  157. 157Healthful Eating Plan Breakfast is important
     Frequency is inversely associated with obesity
     Results in higher overall diet quality and lower daily energy density
  158. 158 Maintain nutritional adequacy Consume a minimum of 1200 kcal per day
     Too restrictive will lead to irresistible binge eating
  159. 159 Food selections Fresh fruits and vegetables; low-fat milk products or substitutes; legumes; small amounts of lean meats, seafood, poultry, or meat alternatives; nuts; whole grains; and enough unsaturated oils to support health
  160. 160 Dietary supplement Vitamins and minerals at or below 100 percent of the Daily Values
  161. 161Healthful Eating Plan Small portions
     Foods with lower energy density
     Fruits, vegetables, and broth-based soups
     Limited intakes of added sugars and alcohol
     Small, frequent meals
     Adequate water
     Learn to satisfy thirst with water
  162. 162Physical Activity Combined with energy restriction
     More likely to lose more fat, retain more muscle, and regain less weight than diet alone
     Benefits
     Reduces abdominal obesity, improves blood pressure, insulin resistance, etc.
     Directly increases energy output
     Energy spent on various activities
  163. 163BMR Elevated following physical activity
     Rises as more lean tissue is added
  164. 164Appetite controlSuppressed immediately after a workout
    Satiation is heightened during meals
  165. 165Physical Activity Psychological benefits Curbs emotional eating
     Reduces stress
     Improves self-esteem
  166. 166Behavior and Attitude towards Fitness Behavior modification
     Manipulating antecedents, the behavior itself, and consequences
     Behavior awareness: keep a diary
  167. 167 Technology tools for tracking daily food and physical activity Applications for smart phones
     Social media sites
  168. 168Behavior and Attitude Focus on desired behaviors and eliminating unwanted behaviors
     Set small time-specific goals
     “How To” apply behavior modification to manage body fatness:
     Cognitive skills: “positive self-talk”
     Identify stressors
     Learn to practice problem-solving skills
  169. 169Weight Maintenance Long-term success behaviors
     Believe in ability to control weight (self-efficacy)
     Eat breakfast
     Stay physically active
     Monitor weight once per week
     Maintain lower-kcalorie eating patterns
     Address small lapses
     Less than 10 hours of TV per week
     High fiber
     Realistic expectations
  170. 170Strategies for Weight Gain Underweight
     Affects about two percent of U.S. adults
     Physical activity
     Focus on resistance training with increased energy intake
     Energy-dense foods
     Choose high-kcalorie items from each food group
     Consume at least three healthy meals daily
     Large portions at each meal
     Have extra snacks between meals
     Increase kcalories with beverages

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Stat I Karteikarten am Test 2#, erstellt von Akasya Benge am 22/09/2019.
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