physiology of training

Power, capacity, yield, latency and refreshment of energy mechanisms

definitions

  • Power : amount of energy (ATP) produced in the unit of time. ENGINE HORSES.
  • Capacity : total amount of ATP that could be synthesized if all the energy substrates available for that metabolic pathway were consumed. HOW MANY GASOLINE IS IN THE TANK.
  • Energy yield : ATP moles synthesized per mole of initial substrate consumed. KM WITH A LITER.
  • Latency : time required to obtain the maximum power that can be delivered by the metabolic pathway
  • Refreshment : time required for reconstitution of the system
Synthesis mechanisms of ATPPower in moles of ATP per minuteCapacity in moles of total ATPsYield in moles of ATP per mole of substrateLatencyrefreshments
Anaerobic alactacid3.80.41 mole of ATP per mole of phosphocreatineFractions of a secondVery short (a few sec.)
Anaerobic lactate1.91.22 mol of ATP per mole of glucose

3 moles of ATP per mole of glucose from glycogen

10-15 secondsShort (20-40 minutes)
Aerobic1Infinity36-38 moles of ATP per mole of glucose

129 moles of ATP per mole of palmitate

45-180 secondsVery long (36-48 hours)

Charts

Time required for maximum activation (latency) of the various energy systems