FROM MY PT SCHOOL NOTES · NUTRITION · UNIT 2 · CHAPTER 09
Metabolism, ATP, and Energy Balance
Metabolism links nutrient intake with energy transfer, synthesis of body tissue, storage, and physiologic work.
What matters most
- Anabolism and catabolism. Anabolic processes build larger compounds; catabolic pathways break down substrates and release usable energy.
- ATP. Adenosine triphosphate is a common energy-transfer molecule; chemical energy from nutrients supports muscle contraction and other cellular work.
- Organ roles. Liver handles nutrient processing and storage; pancreas helps regulate glucose via hormones; kidneys maintain fluid and waste balance.
The PT connection
When returning someone to activity, match exercise progression to healing, fatigue, sleep, access to food, and sufficient energy availability—without calculating a personalized diet from a rough calorie formula.
Current-practice perspective
Some historical slides describe fasting and weight regulation too simply. They are core physiology examples, not a recommendation to fast or restrict intake.
From my original course material: 9 Metabolism.pdf (pp. 2–20, 21–43). These are personal PT-school class notes adapted for education. Historical claims require current source verification. Not individualized nutrition advice or a substitute for a registered dietitian or prescribing team.
