Glycolysis: The Second Energy Pathway for Medium-Term Physical Activity
Classified in Physical Education
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Pathway 2: Glycolysis Anaerobic Lactic- Glycolysis is the second energy pathway. ATP produced during Glycolysis allows an athlete to engage in medium-term physical activity usually lasting from 1-3 minutes (from 15 seconds - 3 minutes).
Medium Term sports would include a shift in a hockey game, 400 or 800 meter track event.
Since glucose is plentiful in the body, Glycolysis is an ideal backup to the short-lived ATP production provided by ATP-PC system. During the process of Glycolysis, glucose is partially broken down in an 11-step biochemical process to yield twice as much ATP! How? Glycolysis transfers energy from the breakdown of glucose to ADP which it uses to rejoin to phosphate to make ATP. Like ATP-PC, Glycolysis does not require O2. ATP