Chapter 1. Before Margaria: Mosso and Herlitzka -- Chapter 2. Margaria's Revolution: A Novel Energetic View of Muscular Contraction -- Chapter 3. Margaria's Concept of Oxygen Debt -- Chapter 4. Further Developments on Exercise Transients: Los Angeles Versus Milano -- Chapter 5. The Energetics and Biomechanics of Walking and Running -- Chapter 6. Cycling, Swimming and Other Forms of Locomotion on Land and in Water -- Chapter 7. Maximal Oxygen Consumption -- Chapter 8. Respiratory Mechanics -- Chapter 9. The Air-Blood Barrier -- Chapter 10. A School Goes to Altitude -- Chapter 11. A School Goes into Space -- Chapter 12. A School Goes into Depth.