Transcript UNIT 1 ASSIGNMENT 3 - Plantsbrook School

ENERGY
ENERGY
• The body needs energy to survive
• The only form of energy the body uses is
called ‘ATP’
• There are 3 (energy systems) ways in which
the body can create ATP
• Intensity of exercise depends on which of the
3 systems is used to supply the fuel for ATP
production
ENERGY SYSTEMS
There are 3 energy systems
1.Creatine Phosphate
2.Lactic Acid
3.Aerobic
Creatine Phosphate
• Supplies energy very quickly
• Does not require oxygen so is classed as
anaerobic
• Your muscles only stores around 10 seconds
worth of creatine phosphate before it is all
used up
Lactic Acid
• Supplies energy quickly but not as fast as C.P.
• Stores for this energy production are higher
from 10 seconds
40 seconds
• The waste product from this system Lactic
Acid makes the muscles feel sore and tired
and will eventually stop
• This system is also anaerobic
Aerobic
• Supplies energy a lot slower than the other
two systems
• However this system can supply energy for as
long as required so long as there is food than
can be used to create the energy
• This system requires oxygen which is the
reason why its the slowest reaction
• This is known as Aerobic
AEROBIC/ANAEROBIC
What do these two terms mean?
Aerobic: Requires oxygen in a reaction
Anaerobic: No oxygen required for reaction
AEROBIC ACTIVITIES
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FOOTBALL
MARATHON
TOUR DE FRANCE
BASKETBALL
400M SWIMMING
ANAEROBIC ACTIVITIES
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100M
WEIGHTLIFTING
GYMNASTICS
SHOT PUTT
50M SWIMMING
400M RUNNING
INTENSITY OF ACTIVITY
Sports require you to work at different speeds,
intensity and durations.
A way to measure intensity is by how much
energy they use. This can be measured in
Kilocalories per hour
INTENSITY OF EXERICSE
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100m sprint
Marathon
Tour de France
Basketball
Squash
Swimming (recreational)
Tennis
Shot putt
Weightlifting
Javelin
Walking
HIGHEST INTENSITY
LOWEST INTENSITY