PE - nutrition

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Define - balanced diet
Food intake containing sufficient amounts of all the nutrients required for energy balance
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Components of a balanced diet
Protein, carbohydrate, fat, minerals, vitamins, fibre and water
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Name 3 physiological effects that occur due to a lack of water
Increased body temp - reduced sweating - increased heart rate - increased blood viscosity - lower blood pressure - headaches/dizziness/fainting - cramp - lower cardiac output/ stroke volume
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Name 1 vitamin and 1 mineral that : helps the production of red blood cells / haemoglobin
Vitamin k , vitamin B12 , folic acid , iron
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Name 1 vitamin and 1 mineral that : strengthen bones
Vitamin D , calcium , phosphorus
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Name the minerals that : assist muscle contractions
Calcium and magnesium
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Name 1 vitamin and 1 mineral that : supply energy for metabolism
Vitamin B2 , niacin , sodium , iron
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Define obesity
Percentage of body fat is over 20% male and 30% female - BMI is over 30 for a male and 40 for a female
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Why is obesity difficult to define
Measurement may be incorrect - Subjective - Difficult to measure - Could have a high % of muscle - Large frame / fatigue
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Name 3 diseases associated with obesity
Heart disease - Diabetes - High blood pressure - High cholesterol - Cancer - Depression - Arthritis
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How do you calculate BMI
Weight (kg) / height (^2) ( m )
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What is percentage body fat - what is classed as obese and how do u measure body fat
The proportion of body fat to lean body tissue - Men having more than 20% and women having more than 30 % are classed as obese - skin food test , body's natural resistance to electricity and water displacement
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What does the skin fold test measure - where do u take measurements
Measures the thickness of skin, reading is looked up against tables to give a guide to % body fat , depends on the accuracy of the person reading results , measurements taken from the tricep, bicep, sub scapular, thigh and illiocrest
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What is a BMR, why are there different readings for different people
Basal Metabolic Rate - rate at which a person uses energy to maintain basic body functions - infants and children = high BMR due to rapid growth and development - men = higher BMR than women because they tend to have more muscle - ^activity=^energy
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Other cards in this set

Card 2

Front

Components of a balanced diet

Back

Protein, carbohydrate, fat, minerals, vitamins, fibre and water

Card 3

Front

Name 3 physiological effects that occur due to a lack of water

Back

Preview of the front of card 3

Card 4

Front

Name 1 vitamin and 1 mineral that : helps the production of red blood cells / haemoglobin

Back

Preview of the front of card 4

Card 5

Front

Name 1 vitamin and 1 mineral that : strengthen bones

Back

Preview of the front of card 5
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