Bell Task Describe the four components of diet (4) Describe a meal suitable for an athlete of you choice and justify the foods you have selected. (6) Compare the dietary requirements of two athletes. Critically analyse the needs of both athletes. (8)

Bell Task 52 Calories 508 Calories 352 Calories 838 Calories 349 Calories 1340 Calories 16 Calories 196 Calories Lets say a skittle is 100 calories, looking at the information about the foods, choose how many skittles we would need in a day to meet our calorie requirements. What could affect how many calories we need?

Energy use, balanced diet and hydration

State the number of calories the average adult need per day. (4-5) Explain the importance and consequences of a balanced diet(6-7) Evaluate factors that could affect calorie intake and justify why this might happen(8-9)

I want to see you linking each food to the elements of a balanced diet. I want to hear you explaining each elements and its importance within a balanced diet. I want to see you linking the elements of a balanced diet to a professional athlete, justifying the decisions you have made.

Starter What might affect the amount of calories that we need? Energy is measured in calories (Kcal) and is provided through the food we eat. The average male requires 2500 Kcal per day and females 2000 Kcal. What might affect the amount of calories that we need?

Average Calorie Requirements Male = 2500Kcal/day Female = 2000Kcal/day Gender Men require more calories Men have larger skeleton Men have greater muscle mass Age After 25, the calorie needs of individuals start to fall. Factors affecting calories required Height Taller people tend to require more calories. Basal Metabolic Rate (BMR) How fast energy is being used. Energy Expenditure The more exercise the more calories required.

The 7 classes of food: The idea mix of foods is often referred to as the 7 classes of food: Carbohydrates (simple and complex) Fats (saturated and unsaturated) Protein Fibre Vitamins Minerals Water

Task Transfer information onto your learning mat about: Fibre Calcium Iron Vitamins A,B,C and D

Why strive to have a balanced diet? Unused energy is stored as fat, which could cause obesity (particularly saturated fat found in deep fried food) Suitable amounts of energy should be consumed to be made available for the exercise and activity carried out The human body needs nutrients for energy, growth and hydration. Balanced Diet (7 Elements) 55-60% Carbohydrate, 25-30% Protein, 15-20% Fat Fibre, Vitamins, Minerals and Water.

What would be the consequences? Calories (Kcal) Physical activity Weight gain

What would be the consequences? Physical activity Calories (Kcal) Weight loss

What would be the consequences? Calories (Kcal) Physical activity Weight balanced (balanced diet)

Reasons for maintaining water balance (Hydration) Mr Burge – Health, fitness and well-being

Learning Objectives Define hydration, dehydration and rehydration (4-5) Explain the consequences of dehydration (6-7) Justify why remaining hydrated is important for a sportsperson in an activity of your choice (8-9)

Starter – Match Definitions Dehydration Hydration Rehydration Consuming water to restore hydration. Excessive loss of body water interrupting the function of the body. Having enough water (water balance) to enable normal functioning of the body.

Group Task Discuss how often you see elite performers, in different sporting events and activities, taking in water. In which events is this most likely to happen?

Factors that impact water consumption Environment Temperature Amount of exercise/activity – need to replace water (rehydration)

Effects of Dehydration Blood thickens (increased viscosity), which slows blood flow Increases heart rate/heart has to work harder. This can cause irregular heart rate Increase in body temperature/overheat Slower reaction time/poorer decision making Muscle fatigue/cramps Dehydration = THRST (no I) TH – Thickens (blood) RS – Reaction Slows T – Temperature Increases

Exam Question Choose an athlete of your choice. Justify why remaining hydrated is important for this sportsperson. (6 Marks)