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GCSE Physical GCSE Physical EducationEducation
The Link Between Exercise, The Link Between Exercise, Diet, Work & RestDiet, Work & Rest
Learning ObjectivesLearning 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
The Importance of a Balanced The Importance of a Balanced DietDiet
What do you understand by the word ‘Diet’?
The Importance of a Balanced The Importance of a Balanced DietDiet
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.
Energy BalanceEnergy Balance
Energy BalanceEnergy 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
Michael PhelpsMichael Phelps
38 world records & 14 Olympic Gold medals... More than any Olympian
CarbohydratesCarbohydrates
What are carbohydrates?
CarbohydratesCarbohydrates 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
Complex CarbohydratesComplex 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
Simple CarbohydratesSimple 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
FatsFats
Are fats important in a balanced diet?
FatsFats
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
ProteinsProteins
Proteins comes in two types of food...
ProteinsProteins
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
Types of ProteinsTypes 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.
Minerals - CalciumMinerals - Calcium
Calcium helps the growth of what?
CalciumCalcium
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
Minerals - IronMinerals - Iron
What foods contain iron?
IronIron
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
Other MineralsOther Minerals
What minerals do these foods represent?
Other MineralsOther 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
VitaminsVitamins
What vitamin are oranges a good source of?
VitaminsVitamins
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
VitaminsVitamins
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
WaterWater
Why do we need water?
WaterWater
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
FibreFibre
Why is fibre important in a balanced diet?
FibreFibre
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
WellbeingWellbeing
What is meant by the term wellbeing?
WellbeingWellbeing
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
Learning Objectives Learning Objectives (revisited)(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
Thank youThank you
Any questions, please do not hesitate to ask