BOOK CONTENT

The largest study ever conducted on Decompression sickness in Freediving, something that can happen to people who dive deeper than -20 meters and hold their breath for long durations.

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Collaborations and interviews with several world record holders, who have shared their experiences with decompression illness and the actions they’ve taken to prevent it in the future. Cases include Eric Fattah and Herbert Nitsch.

In addition to these two important topics, the lessons included in this book are:

1. Intro
2. Physics
   2.1. Narcosis
   2.1.1. What it is
   2.1.2. When it occurs
   2.1.3. How do I know if I have it?
   2.1.4. Problems
   2.1.5. Solutions
   2.2. Decompression Illness (DCI)
   2.2.1. Henry’s Law
   2.2.2. How Henry’s Law affects freediving
   2.2.3. Symptoms of DCI
   2.2.4. Severe symptoms (long-term)
   2.2.5. Differences between DCI in scuba diving and freediving
   2.3. Risk Factors and Causes
   2.3.1. Physics experiment
   2.3.2. Based on dive characteristics
   2.3.3. Based on freediver’s conditions
   2.3.4. Risk activities
   2.4. Evolution of Decompression Tables
   2.4.1. Dr. Paulev’s theory
   2.4.2. Dr. Lanphier’s theory
   2.4.3. Dr. Heran’s spearfishing tables
   2.4.4. Alternative table (2007)
   2.4.5. Rules suggested by AIDA
   2.4.6. Latest proposed tables
   2.5. Studies on DCI throughout history
   2.5.1. Introduction
   2.5.2. Polynesian pearl divers (1958)
   2.5.3. Japanese pearl divers (Ama)
   2.5.4. Navy military instructors
   2.5.5. Spearfishers (16 cases)
   2.5.6. Freediving competition cases
   2.5.7. Differences between DCI in freediving and spearfishing
   2.5.8. Freediving profile
   2.5.9. Spearfishing profile
   2.6. Conclusions
   2.6.1. Advice
   2.6.2. What to do in case of an accident
3. Health and Medical Conditions
   3.1. Medical consequences of long breath-holds
   3.1.1. Bradycardia
   3.1.2. Blood pressure increase
   3.1.3. Arrhythmias
   3.1.4. Exceptions prohibiting freediving
4. Nutrition
   4.1. How to eat 24 hours before diving
   4.1.1. Breakfast
   4.1.2. Dinner and days before
   4.1.3. Hydration
5. Advanced Breathing Techniques
   5.1.1. Hypoxia risks
   5.1.2. Stretches to increase lung capacity
   5.1.3. Types of chest stretches
   5.1.4. Aerobic training
   5.1.5. Air packing (carpas)
   5.1.6. Contraindications of air packing
   5.1.7. Air packing with dorsal stretching
   5.1.8. Air reabsorption from the mask
   5.2. The blockage at -30 meters
   5.2.1. Definition
   5.2.2. Reducing residual volume
   5.2.3. When to perform mouthfill
   5.3. Advanced Frenzel
   5.4. Inverted air packing
   5.5. Air packing + hypopressives
   5.6. FRC - Negative dives
   5.7. Barotraumas
6. Instructor Assistant
   6.1. Leading excursions
   6.2. Designing an excursion
   6.3. Planning
   6.4. What to teach
   6.5. Rules
   6.6. Freediving training
   6.7. Course assistance
   6.8. Theory-practice sessions
   6.9. Pool sessions
   6.10. Open water sessions
7. Improving Personal Bests
   7.1. Common factors across all disciplines
   7.2. Visualizing the dive or distance
   7.3. Analyzing and reviewing techniques and muscles
   7.4. Overcoming fears
   7.5. Physical relaxation
   7.6. Mental relaxation
   7.7. Increasing DYN
   7.8. Anaerobic training
   7.9. Progressive training
   7.10. Increasing depth
   7.11. FRC in the pool
   7.12. Hypopressives + inverted air packing
   7.13. Progressive training
   7.14. Increasing STA
   7.15. Calculating the difficulty increase in tables
   7.16. How to easily reach 100 meters