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1. The key biomechanical principles we learned in badminton are force, levers and rotary motion which makes our body move..We can apply these principles in swimming by using our arms & legs for levers and force and our shoulders for rotary motion.

2.The density of the water, air in our lungs andour body composition all affect our buoyancy which helps us float. If we have high body fat our buoyancy increases

3. Drag is an external force that opposes movement either forward or backward. Friction is a form of drag.Drag is a biomechanical principle because it affects our body’s movement.

55-60%Carbohydrates

30% Fat

12-15%Protein

Percentage of Calories Recommended

Fat in our Diet

• Stored energy• Adds tenderness and flavors food• Makes us feel full• Transports fat-soluble vitamins

A, D,E & K• Other functions of fat ?

Fats

• Saturated – Solid at roomtemperature, comes fromanimals, burns at a higher temperature, LDL(Trans-Fat, Hydrogenated Oil)

• Unsaturated – Liquid atroom temperature, come from plants, burns at a lower temp. HDL(Monounsaturated,Polyunsturated)

Hydrogenated or Partially

Hydrogenated Oil• In processed foods. Keeps food fresher

longer• Makes an unsaturated fat act like a

saturated fat• Hydrogen is forced into the liquid oil• Has a high burning point so it’s good for

for frying• Easy to handle, easy to spread and easy

to store

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Protein-The Building Blocks• Body breaks down protein into Amino Acids• 20 Amino Acids. Your body can make 11

9 Amino Acids can’t be made by the body and must come from food you eat “Essential Amino Acids”Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Threonine, Tryptophan, Valine

Protein must be cooked or breaks down in the

stomach from stomach acid

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Essential Amino Acids must be supplied by your diet. They are not made by your body

Function of Essential Amino Acids• Contributes Fatty Acids to brain and

nerves• Promotes normal growth and vision• Assists in gene regulation• Maintains outer structure of the skins,• Helps regulates genetic activities affecting

metabolism• Support immune cell function

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Essential Amino Acids -

must be supplied by your diet• *Omega 6* found in vegetables oil (corn,

cottonseed, safflower, sesame, soybean, and sunflower)

• Omega 3 found in certain fish (Mackerel, salmon, anchovy, herring, lake trout, sardines, tuna) and from some oils (walnuts, soybeans, cranola) and seeds and nuts (butternuts, flaxseeds, walnuts, soybeans)

* most common in diet 10

Protein Sources

BeansFishChickenRed MeatEggsNutsGrains

– *Complete essential Amino Acids come from

animal protein and are the easiest to digest

*preferred by body

* Incomplete Essential Amino Acid

come from nuts, beans,

and rice

Energy and Protein

Protein is used for energy only

when there is no glucose or fat left

to keep the body alive!

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Protein Functions

• Supports Growth and Maintenance• Builds Enzymes and Hormones• Maintains Electrolyte and Fluid Balance• Maintains Acid-Base Balance• Blood Clotting• Builds Antibodies• Provides Energy