Energy Systems - Class 6 Flashcards
what is an energy system
metabolic systems involving a series of biomechanical rxns
resulting in production of ATP, CO2 and water
what do cells do in energy systems
use energy released during the conversion of ATP –> ADP + phosphate
to perform metabolic activity
muscle cells use
energy from ATP —> ADP + P
for actin myosin cross bridging when contracting
pathways
anaerobic and aerobic exercise pathways
anaerobic pathways
phosphagen/ATP-PC system
Anaerobic/Glycolytic system
what is stored in the cell –> phosphagen/ATP-PC system
ATP and phosphocreatine (PC)
primary energy source –> phosphagen/ATP-PC system
phosphocreatine
when muscle is rested –> phosphagen/ATP-PC system
PC is replenished
phosphagen/ATP-PC system has
low capacity, high power
phosphagen/ATP-PC system is for
short, quick burst of activity
first 30 s of intense exercise
primary energy source –> Anaerobic/Glycolytic system
glycogen (glucose)
ATP –> Anaerobic/Glycolytic system
resynthesized in the muscle
Anaerobic/Glycolytic system is
moderate capacity, moderate power
what is produced –> Anaerobic/Glycolytic system
lactic acid
Anaerobic/Glycolytic system is for
moderate intensity, short duration
first 30-90 s of exercise
