Anaerobic
The Anaerobic energy system produces energy without
oxygen. The purpose of anaerobic conditioning is to progressively improve
the body's ability to tolerate oxygen debt, increases stores of ATP and
muscle glycogen. There are two anaerobic energy systems, ATP-PC and Anaerobic
Glycolysis. Limited amounts of ATP-PC are stored in the muscles. Because
oxygen is not required to release the energy stored in ATP-PC, it is immediately
available and can provide large amounts of energy per unit of time. It
is the primary energy source for short duration high intensity activities.
A work bout at 100% for 30 second's completely depletes this energy sources.
Because intramuscular ATP-PC is a necessary immediate energy source it
must be re-established after each work bout. Oxygen is needed to complete
this process. Heavy breathing after intense bouts of exercise repays the
oxygen debt that has occurs (2). During Intense exercise bouts beyond
1min most of the energy is supplied through Anaerobic Glycolysis, (the
break down of muscle glycogen). Muscle glycogen is broken down into glucose.
Glucose is then broken down producing ATP-PC to provided further energy.
During the breakdown of glycogen a by product called lactate acid is produced.
As lactic acid builds up cellular acidity increases effecting nerve endings,
causing pain and inhibits muscle contraction. The gradual return to normal
breathing after initial heavy breathing, aerobically metabolizes accumulated
lactic acid. Anaerobic glycolysis is the major supplier of energy for
intense bouts of activity lasting 1 to 3 min. Due to the effects of lactic
acid build up the amount of energy this system can produced is limited.
Anaerobic glycolysis is less powerful then the ATP-PC system because it
produces less energy per unit time (2).
Anaerobic conditioning is characterized by the following:
· Duration 8 to 10 week
· Frequency 2- 4 days/wk
· Distances 10 to 400 meters.
· Intensity HR= 180 b/min. and up
Anaerobic activities are characterized by:
· Maximal or near maximal efforts
· explosive
· short burst of ( 1 to 3min) with 2 to 6 times
as much recovery
· requires no initial oxygen
Go to Conditioning Part
1--Muscular Endurance, Strength, Conditioning
Go to Conditioning Part
2--Aerobic Conditioning
