1. GCSE Physical Education The Link Between Exercise, Diet, Work & Rest

2. Learning Objectives By the end of this lesson pupils should:
Understand the links between
- Exercise
- Diet
- Work
- Rest
Explain the requirements and factors of a
balanced diet

3. The Importance of a Balanced Diet
What do you understand by the word ‘Diet’?

4. The Importance of a Balanced Diet
People adopt diets for different reasons:
Moral reasons
Religious reasons
Control body composition
Diet is an essential part of providing energy needed to work and exercise, and also to rest and repair muscles tissues.

5. Energy Balance

6. Energy Balance Energy balance must be considered:
calories in = calories out
Active people use more energy so they
need more calories in their diet...
For example Michael Phelps

7. 38 world records & 14 Olympic Gold medals... More than any Olympian
Michael Phelps
38 world records & 14 Olympic Gold
medals... More than any Olympian

8. What are carbohydrates?

9. Carbohydrates Carbohydrates give us energy
There are 2 types of carbohydrates:
- Complex carbohydrates
- Simple carbohydrates
Carbohydrates are stored in the muscles and
liver as glycogen
This is quickly converted to glucose and used to
provide energy

10. Complex Carbohydrates
Often referred to as starch and found in
natural foods such as bananas, brown bread,
nuts, and potatoes
These help provide energy to exercise and
should form about 50% of our daily intake
These provide a slower, longer-lasting release
of energy and contribute to long term health

11. Simple Carbohydrates These are known as sugars
In their natural form they are found in
fruit and vegetables.
Refined sugars are found in chocolate
and confectionary

12. Are fats important in a balanced diet?

13. Fats Provide energy, together with glycogen, to help muscles work
Fats are found in butter, cooking oil, bacon,
cheese, etc.
Daily intake of fats to provide necessary
energy should be about 30% of total diet

14. Proteins comes in two types of food...

15. Proteins Important to help build muscles and repair damaged tissue
Proteins are also used to provide energy
once carbohydrates have been used up
Proteins are found in animal protein and
plant or vegetable protein

16. Types of Proteins Animal proteins are found in
meat, fish, milk, cheese, eggs,
etc.
Plants or vegetable proteins are
found in nuts, bread, potatoes,
pasta, rice, etc.

17. Calcium helps the growth of what?
Minerals - Calcium
Calcium helps the growth of what?

18. Calcium Important during growing up as it helps the
formation and strengthening of bones and
teeth
Milk, cheese and cereals are the main
sources of calcium in the diet
Strong bones are needed in order to
withstand the impact of exercise

19. What foods contain iron?
Minerals - Iron
What foods contain iron?

20. Iron Important for blood to help it carry oxygen
and form red blood cells
Without iron, it would be impossible for
oxygen to carry blood around the body
Many foods contain iron, but iron in meat is
absorbed more easily

21. What minerals do these foods represent?
Other Minerals
What minerals do these foods represent?

22. Other Minerals Sodium is needed for regulating body water content
Potassium is important to the functioning of
cells
Trace elements such as zinc and selenium
are needed in very small amounts

23. What vitamin are oranges a good source of?
Vitamins
What vitamin are oranges a good source of?

24. Vitamins Vitamin A - found in milk, cheese and carrots
Needed for vision/prevent night blindness
Vitamin B1 - found in whole grains, nuts and meat
Needed to release carbohydrates
Vitamin C - found in fruits and vegetables
Needed to help healing and fighting infection and
the maintenance of bones, teeth and gums

25. Vitamins Vitamin D - found in milk, fish, liver, eggs and sunshine
Needed for the absorption of calcium
Vitamin E - found in vegetable oil, wholemeal bread
and cereals
Needed for growth and development
A balanced supply of vitamins is essential for the
body to function properly and therefore important
to a balanced healthy lifestyle

26. Water
Why do we need water?

27. Water Water accounts for about half of body weight
Holds oxygen and transports nutrients,
waste and hormones around the body
During exercise, water is important to
control temperature and to prevent
dehydration

28. Why is fibre important in a balanced diet?

29. Fibre Fibre adds to the functioning of the digestive system
Fibre is found in the leaves, stems, roots, seeds
and fruits of plants
Without fibre the digestive system would not be
able to get rid of wastes products and therefore
could lead to many diseases

30. What is meant by the term wellbeing?

31. Wellbeing Diet makes an important and valuable
contribution to wellbeing and the ability to
function
A balanced diet provides all the nutrients
needed to exercise and work
Appropriate rest periods are necessary to
allow the body to repair

32. Learning Objectives (revisited)
By the end of this lesson pupils should:
Understand the links between
- Exercise
- Diet
- Work
- Rest
Explain the requirements and factors of a
balanced diet

33. Any questions, please do not hesitate to ask
Thank you
Any questions, please do not hesitate to ask