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Performance Freediving Kirk Krack & Brett LeMaster Performance Freediving Systems
Performance Freediving Clinic • Introduction • Overview • Emergency procedures for freediving • Equipment for freediving • Proper breathing • Physiology of freediving • Physics of freediving • Psychology of freediving • Training exercises Performance Freediving Systems
Objective of Performance Freediving • Staff introductions • Paperwork • Liability release • Medical statement • Student course sign off Performance Freediving Systems
Emergency Procedures Performance Freediving Systems
Bail-out Systems • Ditching weight belts • Ascent lines • Scuba bailouts • Lift bags Performance Freediving Systems
Inflatable life vests • Support divers (scuba) Performance Freediving Systems
Freediver Blackout • Signs & symptoms • Recovery at surface • Laryngospasm • Assisting an unconscious diver Don’t slap or shout Performance Freediving Systems
Buddy Separation • On the surface • Underwater Performance Freediving Systems
Equipment for Freediving Performance Freediving Systems
Equipment Needs for Freediving • Exposure protection • Mask, fins, snorkel • Weight belt & weights Performance Freediving Systems
Gauges & timing devices • Accessories • Spare air • Flags & floats • Line cutters • Signaling devices Performance Freediving Systems
Proper Breathing Performance Freediving Systems
Correct Breathing Patterns • Stomach breathing • Chest breathing • Shoulder breathing Performance Freediving Systems
Correct breathing cycles • Normal • Ventilations • Super-ventilations • Peak inhalation • Dizziness, numbness, tingling??? Performance Freediving Systems
Ventilation & Hyperventilation Differences • Hyperventilation • Ventilation Performance Freediving Systems
Physiology of Freediving Performance Freediving Systems
Breathing Processes • Circulatory system • Respiratory system • Nervous system Performance Freediving Systems
What makes us breath? • Pulmonary gas exchange • At the surface • On a freedive • Vacuum effect during ascent Performance Freediving Systems
Lung Volumes • Tidal volume • Residual volume • Inspiratory volume • Expiratory volume Performance Freediving Systems
Vital capacity • Functional residual capacity • Total lung capacity • Respiratory minute volume Performance Freediving Systems
Aquatic Adaptations • Mammalian diving reflex • Blood shunt • Bradycardia • Elevation of red blood cells • Thoracic filling Performance Freediving Systems
Effects of immersion • Negative pressure breathing • Venous blood return Performance Freediving Systems
Pressure & Body Airspaces • Elastic airspaces : abdomen • Rigid airspaces : sinuses & ears • Equalization techniques • Pressure changes %’s Performance Freediving Systems
Pressure Related Injuries • Middle ear Barotruama • Barotitis media • Alternobaric vertigo • Perforated tympanic membrane Performance Freediving Systems
Sinus squeeze • Reverse block • Lung & mask squeeze • Lung over-pressurization Performance Freediving Systems
Physiological Stresses & Dangers • Hypoxia • Hypercapnia • Hypocapnia • DCS Performance Freediving Systems
Exercise, exertion • Diet for freediving Performance Freediving Systems
Freediving Blackout • Deep water blackout • Shallow water blackout • CO2 blackout Performance Freediving Systems
Physics of Freediving Performance Freediving Systems
Depth and Pressure • Pressure & atmospheres • Converting depth to pressure Performance Freediving Systems
Pressure & Volume • Boyles law • Pressure increases / volume decreases • Pressure decreases / volume increases Performance Freediving Systems
Partial Pressures • Dalton’s law • Pg = Fg X Pata Performance Freediving Systems
Buoyancy • Buoyancy • Negative buoyancy • Positive buoyancy • Nuetral buoyancy Performance Freediving Systems
Streamlining • Density & mass • Streamlining for conservation Performance Freediving Systems
Psychology of Freediving Performance Freediving Systems
Anxiety Stimulas • Physiology of stress / anxiety • Causes of stress / anxiety Performance Freediving Systems
Stress Reduction • Training • Preparation & prevention • Skills practice • In-water comfort Performance Freediving Systems
Buddy confidence • Equipment • Support • Visualization Performance Freediving Systems
Meditation & Concentration • Time clock • Focus control – mind set • Meditation Performance Freediving Systems
Relaxation techniques • Defining personal limits • Panic control Performance Freediving Systems
Training Exercises Performance Freediving Systems
Dry Land Training • Static breath-hold • Apnea walk • Breath-hold jogging / Stairmaster • Weight training Performance Freediving Systems
Pool Training • Surface swimming • Underwater swimming Performance Freediving Systems
