Week 1b ATP-PCr Flashcards
Describe how ATP is resynthesis via the ATP-PCr system
→ ATP is breakdown into ADP and inorganic phosphate (Pi)
→PCr, donate a Pi group to ADP to regenerate ATP
The reaction is activated by the enzyme - creatine kinase, it transfers the P group from PCr to ADP, forming ATP and creatine
The importance of ATP-PCr system towards brief high-intensity exercise
→ Significant ATP resynthesis coming from PCr hydrolysis during the maximal exercise of greater than 6 seconds
→ The total PCr depletion can happen in about 15 seconds of maximal all-out exercise
How PCr is resynthesised and an approximate timeframe
→ REquire the presence of ATP and creatine
→Individuals with a high-capacity aerobic energy system have a faster replenishment.
→ Different sources suggest slightly different in timeline
50% of resting content is replenished - 1 mins of large disturbance
