Vitamin Functions | Vitamin Deficiencies | Weight Change | Physical Activity | Sports Nutrition |
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Help the body use macronutrients for energy, help cells multiply
Describe the common functions of B vitamins as a group.
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Night blindness, keratinization of skin, impaired immune system, impaired bone growth
What are the symptoms of vitamin A deficiency?
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Food restriction, low body weight, distorted body image
Describe the eating disorder anorexia nervosa.
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Flexibility, muscle strength, muscle endurance, cardiorespiratory endurance
What are the 4 components of fitness?
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Increases fatigue, impairs performance because red blood cells are not delivering muscles the oxygen needed to burn energy.
What effect does iron deficiency anemia have on performance? Why?
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Helps cells multiply rapidly. Important early in pregnancy for development of brain and spinal cord.
What is the main function of folate? When is folate consumption particularly important.
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Scurvy; bleeding gums, pinpoint hemorrhages on skin
What is vitamin C deficiency called? What are the symptoms?
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Repeated episodes of binge eating followed by purging via vomiting, laxatives or excessive exercise.
Describe the eating disorder bulimia.
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Disease prevention, more restful sleep, reduced stress, weight maintenance, longer life, higher quality of life in later years
What are the health benefits of physical activity?
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Only glucose from muscle glycogen. Not able to use fat.
What fuel is used in high intensity, short duration activity (e.g. sprinting)?
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Antioxidant, wound healing, enhances iron absorption
What are the functions of vitamin C? When are vitamin C needs increased and why?
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In children, rickets; abnormal bone growth
In adults, osteomalacia; weak, easily fractured bones
What is vitamin D deficiency called? What are the symptoms?
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Repeated episodes of eating larger than normal amounts and feeling out of control of eating behavior. Not followed by purging.
Describe binge eating disorder.
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Improved body composition (more lean mass, less fat), better bone density
What are the benefits of resistance training?
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Glucose and fatty acids
What fuels are used when a person exercises longer than 20 minutes?
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Vitamin E: antioxidant
Vitamin K: blood clotting
Describe the main function of the following vitamins: E. K.
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Pernicious anemia (decrease in red blood cells); fatigue, nausea/vomiting, confusion, memory loss
What is vitamin B12 deficiency called? What are the symptoms?
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Eating disorder - restrictive eating, overexercise
Amenorrhea - lack of menstruation due to diminished hormones Osteoporosis - loss of calcium from bones due to diminished hormones
Name and define the 3 components of the female athlete triad.
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Increase in breathing and heart rate but still able to talk; RPE 5-6
Describe moderate intensity physical activity.
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215lb - 211lb = 4lb lost
Post exercise fluid recommendations = 2-3 cups per lb lost 4lb X 2-3cups/lb = 8-12 cups
If a football player weighs 215lb before and 211lb after a summer practice, how much fluid should he consume?
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Vitamin A: Vison, skin, immune system, bone growth, antioxidant
Vitamin D: bone structure
Describe the main function of the following vitamins: A, D.
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Thiamin: beriberi - confusion, memory loss, muscle weakness, enlarged heart, cardiac failure
Niacin: pellegra: diarrhea, dermatitis, dementia, death
Name and describe deficiencies for the following vitamins: thiamin, niacin.
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Limit calories
Manage portions Make diet adequate and balanced Eat regularly, especially at breakfast Select foods with low energy density - more volume, less calories; high in water and/or fiber e.g. fruits, vegetables, whole grains, legumes
List and describe 5 diet strategies for weight loss
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Overload - challenge from physical activity damages muscle tissue
Protein - used to repair and build new muscle tissue Rest - necessary for muscle repair and synthesis
How do muscles respond to physical activity? What 3 things are needed for muscle growth?
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Before - consume a carb-rich meal to maximize glycogen stores
During - consume simple carbs during activity lasting more than 1 hour to maintain blood glucose After - consume carbs to replace glyogen used during activity Overall - consume a high carb diet focusing on complex carbs to maintain glycogen stores
Describe dietary strategies for athletes to maintain blood glucose concentrations (before, during, after training/competition)?
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