1. Energy Systems Adaptations to Training
Energy systems: increased aerobic and anaerobic enzymes; increased use of fats as an energy source

2. Energy System Adaptations to Anaerobic Training
ATP – CP
Will increase stores of ATP & CP
Anaerobic Glycolysis (Lactic Acid System)
 in levels of glycolytic enzymes
Less Lactic Acid produced, more efficient Cori cycle (converting lactic acid in the liver back to glucose to use)
Increased buffering capacity (acid-base balance) more able to tolerate lactic acid for longer!
More energy can be produced through these systems

3. Adaptation to Aerobic Training
↑ the availability of carbohydrate and fats as substrate to meet cellular needs for ATP resynthesis.
↑ capillary density
↑ myoglobin content (increases extract of O2 to the muscle cells)
↑ activity of oxidative enzymes (aerobic pathways)
↑ oxidative capacity linked to ↑ numbers of mitochondria
Therefore O2 ↑ utilization

4. Adaptation to Aerobic Training
Increased capacity to oxidize Fats shifts the energy source from glucose to fat (to spare glucose)
Decreased utilisation of the anaerobic glycolysis (LA) system
↓ lactate concentration ↑ clearance of lactate during exercise