Bioenergetics

1. (adenosine triphosphate), The energy currency of the cell. ATP is used to power all cellular processes, including muscle contraction.
2. (excess post-exercise oxygen consumption), The increased rate of oxygen consumption that occurs after exercise.
4. The study of how living organisms convert energy from food into usable forms.
6. (phosphocreatine), A high-energy phosphate compound that stores energy and can be used to quickly resynthesize ATP.
10. phosphorylation, The process by which ATP is produced from ADP and Pi using the energy released from the oxidation of fuels.
11. metabolism, The metabolic changes that occur in the body during and after physical activity.

1. metabolism, Energy metabolism that requires oxygen.
3. max: The maximum rate at which oxygen can be consumed during exercise.
5. The first step in energy metabolism, in which carbohydrates are broken down into pyruvate to produce ATP.
7. acid cycle (Krebs cycle), A series of chemical reactions that break down pyruvate and other fuels to produce ATP, carbon dioxide, and water.
8. metabolism, Energy metabolism that does not require oxygen.
9. threshold, The point at which the rate of lactate production exceeds the rate of lactate removal.