1. Dietary Manipulation
To be able to explain how sporting activity can affect nutritional requirements. (carbohydrate loading, protein intake, hydration)
To be state factors that affect optimum weight
To be able to explain how optimum weight varies according to role in physical activity and sport

2. Clue: pasta, rice and bread are a good source of this!!!
Starter Activity
radrhyetcbod
Clue: pasta, rice and bread are a good source of this!!!
carbohydrate

3. Clue: responsible for growth and repair.
Starter Activity
norptei
Clue: responsible for growth and repair.
protein

4. Clue: combines with OXYGEN to create energy
Starter Activity
elgsuco
Clue: combines with OXYGEN to create energy
glucose

5. Clue: helps prevent scurvy!
Starter Activity
cminativ
Clue: helps prevent scurvy!
Vitamin C

6. Dietary Manipulation

7. Why?
Body normally limits the amount of carbohydrate that can be stored, converting excess carbohydrate into fat stores. Carbohydrate Loading is a method of dietary manipulation to allow performers to increase their carbohydrate stores
Carbohydrate loading
Marathon runners and other endurance athletes often use a technique called carbohydrate loading.
Result
Combination of reduced training and increased carbohydrate intake results in an increase stores of muscle glycogen.
The increase allows endurance athletes to exercise at their optimum pace for longer
1-4 days of exercise taper (reduce the normal training load) while eating a high carbohydrate diet
This process is designed to trick the body into storing extra glycogen in the liver and muscles.

8. Water 75% 2–3 litres urine sweat exercising dehydration tiredness
The human body is water
75%
We lose a day through , and breathing so this must be replaced
2–3 litres
urine
sweat
exercising
When the body loses even more water, increasing the risk of
dehydration
Symptoms of dehydration: , lack of concentration and
tiredness
headaches
It is essential to keep taking a small amount of at regular intervals during exercises to enable the body to function properly
fluid

9. What are the symptoms of Dehydration?
1% Few symptoms or signs of any thirst.
2% Beginning to feel thirsty; loss of endurance capacity and appetite.
3% Dry mouth; performance impaired.
4% Increased effort for exercise, impatience, apathy, vague discomfort, loss of appetite.
5% Difficulty concentrating, increased pulse and breathing.
6–7% Impairment of temperature regulation, higher pulse and breathing, flushed skin, sleepiness, tingling, stumbling, headache.
8–9% Dizziness, laboured breathing, mental confusion, further weakness.
10% Muscle spasms, loss of balance, swelling of tongue.
11% Heat exhaustion, delirium, stroke, difficulty swallowing; death can occur.

10. Effect of dehydration on exercise
Dehydration is detrimental to sporting performance. It can cause:
Increased heart rate (beats per minute)
Increased lactate acid in muscles (increased blood acidity)
Increased body temperature
Nausea
Dizziness
Muscle cramp
Fatigue

11. Timing of protein intake
Power Athletes
During exercise, protein in the athletes body will break down as a result of the work the athlete is doing.
In order for the muscles to repair after training, during rest and recovery athletes will take in protein to increase protein synthesis
When?
Daily protein should be balanced across all three meals a day

12. Syllabus Objective
Students should be able to outline why, and how, expected and optimum weight varies according to height, gender, bone structure and muscle girth, and explain how this may affect participation, and performance, in physical activity

13. The taller you are the more you would expected to weigh
SEX
The structure & physiology of men’s and women’s bodies.
Men have more muscle mass so have an advantage on activities relying heavily on strength
Height
The taller you are the more you would expected to weigh
Bone Structure
Some people have bigger, denser bone structure than others.
This can be an advantage in contact sports as the athlete would be able to withstand physical contact
Factors affecting optimum weight
Muscle Girth
This is the size or circumference of the muscle. A larger circumference implies a larger muscles.
Being the correct weight is important in most sports, but particularly in the following activities:
Horse Riding Gymnastics Boxing
Do you know why?

14. Effect on performance WEIGHT HEIGHT
Being tall can be an advantage (e.g. high jump) or a disadvantage (e.g. gymnastics) depending on which sport you play.
Being small could be an advantage (e.g. a jockey) or a disadvantage (e.g. basketball) depending on which sport you play.
WEIGHT
Being heavy can be an advantage (e.g. sumo wrestling) or a disadvantage (e.g. jockey) depending on which sport you play.
Being light could be an advantage (e.g. dancer) or a disadvantage (e.g. rugby) depending on which sport you play.

15. Performer
Height
Weight at time of competition
Classification using standard tables
176cm
80kg
Overweight
187cm
90kg
50kg
Underweight
183cm
115kg
Obese
Look at the information in the table:
Which performer is the lightest?
What activity do they participate in?
Consider the approximate weight and guidance weight for each of the performers. What do you notice? If the weight is more than recommended, what might be the cause of the extra weight gain?
If the weight is under that expected, why might this be the case?
Can you see the link between weight and activity? Why are those performers considered to be the correct weight for what they do?
What does it tell you about using standardised tables to judge whether you are over or underweight?

16. One pupil starts to speak about the topic covered
One pupil starts to speak about the topic covered. At the first repetition, pause or mistake another takes over - and so on until the minute is up.
Just a Minute