Transition: Food Fuels

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Presentation transcript:

Transition: Food Fuels

SOURCES OF ENERGY (fuel) 1. CHO 2. FATS 3. PROTEIN

CARBOHYDRATES (CHO) Food sources: Converted to glucose Breads Pasta Cereals Rice Fruit (some) Converted to glucose Stored as glycogen in muscles and liver Major source of ATP production during exercise Do not require oxygen Fast/simply breakdown for energy release

FATS (triglycerides) Food sources Converted to fatty acids Dairy products Meat Vegetable oils Nuts Converted to fatty acids Stored as trigylcerides in fat cells located throughout the body and within skeletal muscles Primary source of ATP under resting conditions, used as a secondary source of energy during exercise Required oxygen to break it down Provides much more energy compared with CHO

PROTEIN (a.a.’s) Food Source The building blocks of tissue Meat Fish Dairy products eggs The building blocks of tissue Basic structural units of proteins are amino acids Found in muscle fibres and cell tissue Not ordinarily used as a food fuel during exercise (negligeable %), however may occur in ultra-endurance events

FUEL STORED AS SITE CHO glucose blood glycogen liver muscles FATS fatty acids blood triglycerides muscles adipose tissue around body PROTEIN muscles around body amino acids