ENERGY SYSTEMS

ATP-PC SYSTEM

• The ATP-PC system lasts for 8-10 seconds
• A phosphate breaks off of the ATP to form ADP + emergy
• ITs an anerobic energy system as it does not use oxygen
• Runners would usually use it at the end of a race

LACTIC ACID SYSTEM

• Lactic acid system lasts for 60-90 seconds
• Glucose is broken down to sustain performance for longer
• However as it doesn't use oxygen its not suited for 90+ seconds

AEROBIC SYSTEM

• Constantly being used to supply the muscles with energy
• Over 90 seconds can be used constantly
• As long as there is a constant supply of oxygen
• And a constlant supply of fatty acids
• Glucose is broken down to sustain performance for longer

ENERGY CONTINUUM

• During exercise and most sports -
• more then one energy system is in use
• In football there are time when you have to sprint
• And use the phosphocreative system
• But also time when you use the aerobic system

ENERGY REQUIREMENTS

• Each sport will use different amounts of each energy system
• Football requires:50% aerobic,30% lactic and 20% ATP-PC
• 200m requires:0% aerobic,2% lactic and 98% ATP-PC
• Cycling requires: 85% aerobic,10% lactic and 5% ATP-PC

RESPIRATORY SYSTEMS

INCREASE IN BREATHING RATE

• A healthy rate will increase
• The more carbon dioxide the lower thr breathing rate
• During exersise muscles meed oxygen for metabolic reactions
• Faster we breath the more oxygen we can get
• The breathing rate is controlled it too ways:chemically,neuralogicaly

INCREASED TIDAL VOLUME

• Your lungs job is to meet the body's demands for oxygen
• Required for cells in your body to produce energy to function
• Lungs bring in fresh air with every breath
• During exercise your body's production of carbon dioxide goes up