7. Safety Freediver
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Freediving Catalog 2014
Freediving 2014 760B2EG 760B3EG 760B4EG 760B5EG E-GLASS DESCRIPTION Our most popular and all around bifins. The lenght of the blade is compatible with dynamic and constant weight apnea. Composite blades to stock up on maximum energy throughout the bending. TECHNOLOGY Technology : prepreg curing process Fabric : E-glass Resin : epoxy Performance : 30 to 40% more responsive than plastic SPECIFICATIONS Height of blade : 760 mm Width of blade : 210 mm Flat blade for made-to-measure footpocket (free heel) Blade with an angle of 15° to fit in full footpocket 4 kinds of varying hardness that are most likely to suit your style and body type : 760B2EG : soft, dynamic apnea 760B3EG : medium, dynamic and constant weight apnea 760B4EG : hard, constant weight 760B5EG : very hard, constant weight for big guys + 90kg Weight with made-to-measure footpocket = 1,5kg Weight with full footpocket = 1,9kg T profiles along the edges to ensure a good drive and a channeling of the water FOOTPOCKETS 2 kinds of footpockets : - Made-to-measure footpocket : Size 35 to 50 (3 to 15), free heel for better stroke - Tuned full footpocket : cut out footpocket to get a lighter and more responsive swimfin. Beuchat Mundial : 41-42, 43-44, 45-46, 47-48 Imersion : 38-40, 40-42, 42-44, 44-46 Omer : 36-38, 38-40, 40-42, 42-44, 44-46, 46-48, 48-50 760B2SG 760B3SG 760B4SG 760B5SG S-GLASS DESCRIPTION Our most popular and all around bifins. The lenght of the blade is compatible with dynamic and constant weight apnea. Composite blades to stock up on maximum energy throughout the bending. -
No Limits Freediving
1 No Limits Freediving "The challenges to the respiratory function of the breath-hold diver' are formidable. One has to marvel at the ability of the human body to cope with stresses that far exceed what normal terrestrial life requires." Claes Lundgren, Director, Center for Research and Education in Special Environments A woman in a deeply relaxed state floats in the water next to a diving buoy. She is clad in a figure-hugging wetsuit, a dive computer strapped to her right wrist, and another to her calf. She wears strange form-hugging silicone goggles that distort her eyes, giving her a strange bug-eyed appearance. A couple of meters away, five support divers tread water near a diving platform, watching her perform an elaborate breathing ritual while she hangs onto a metal tube fitted with two crossbars. A few meters below the buoy, we see that the metal tube is in fact a weighted sled attached to a cable descending into the dark-blue water. Her eyes are still closed as she begins performing a series of final inhalations, breathing faster and faster. Photographers on the media boats snap pictures as she performs her final few deep and long hyperventilations, eliminating carbon dioxide from her body. Then, a thumbs-up to her surface crew, a pinch of the nose clip, one final lungful of air, and the woman closes her eyes, wraps her knees around the bottom bar of the sled, releases a brake device, and disappears gracefully beneath the waves. The harsh sounds of the wind and waves suddenly cease and are replaced by the effervescent bubbling of air being released from the regulators of scuba-divers. -
Monofins for Freediving
Monofins for Freediving We have been intermittently following the debate concerning the use of the monofin in freediving and would like to share some of our findings. Two years ago we put together the first experimental monofin/freedive clinic where we assembled some unique elements. We put together the leading trainers in monofin swimming, namely the Russian coaches from Tomsk university, who train both the Russian national team and their chief rivals, the Chinese, the leading specialist monofin manufacturer belonging to the same school and a group of freedivers which represented the best cross-section, from the very top of freediving competition to the very novice. This same group also represented advanced freedivers who already had experience with the monofin, advanced freedivers who had never used a monofin and a novice freediver with no experience of the monofin. Although the number of freedivers involved was small we feel that with a larger group the conclusions would have been much the same. The objectives were to find (i) What style and why? (ii) What rhythm and amplitude of movement? (iii) What kind of monofin and what stiffness of blade and if this was individual what the relevant criteria for monofin choice should be? (iv) What compromises and adaptations had to be made to suit the specific needs of the freediver? (v) What was the best training method for the monofin freediver. What style and why? We had heard a lot of talk concerning adaptations of the ‘classic ’style that freedivers should adopt. I know from personal acquaintance that some of the people recommending various adaptations were not capable of demonstrating a good classic style hence their recommendations were from lack of ability in the monofin and hence lack of choice through limited ability. -
APNEA TRAINING and PHYSICAL CHARACTERISTICS: ENHANCEMENT of the DIVE RESPONSE, APNEIC TIME, and RECOVERY by Nathanael Stanford A
APNEA TRAINING AND PHYSICAL CHARACTERISTICS: ENHANCEMENT OF THE DIVE RESPONSE, APNEIC TIME, AND RECOVERY by Nathanael Stanford A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Kinesiology Boise State University May 2019 © 2019 Nathanael Stanford ALL RIGHTS RESERVED BOISE STATE UNIVERSITY GRADUATE COLLEGE DEFENSE COMMITTEE AND FINAL READING APPROVALS of the thesis submitted by Nathanael Stanford Thesis Title: Apnea Training and Physical Characteristics: Enhancement of The Dive Response, Apneic Time, and Recovery Date of Final Oral Examination: 08 March 2019 The following individuals read and discussed the thesis submitted by student Nathanael Stanford, and they evaluated his presentation and response to questions during the final oral examination. They found that the student passed the final oral examination. Shawn R. Simonson, Ed.D. Chair, Supervisory Committee Timothy R. Kempf, Ph.D. Member, Supervisory Committee Jeffrey M. Anderson, MA Member, Supervisory Committee The final reading approval of the thesis was granted by Shawn R. Simonson, Ed.D., Chair of the Supervisory Committee. The thesis was approved by the Graduate College. ACKNOWLEDGEMENTS I would first like to thank my thesis advisor, Shawn Simonson for his continual assistance and guidance throughout this master thesis. He fostered an environment that encouraged me to think critically about the scientific process. The mentorship he offered directed me on a path of independent thinking and learning. I would like to thank my research technician, Sarah Bennett for the hundreds of hours she assisted me during data collection. This thesis would not have been possible without her help. To my committee member Tim Kempf, I want to express my gratitude for his assistance with study design and the scientific writing process. -
CDAA Newsletter
Photo by JaneHeadley and RyanBovanizer. Divers areT Englebrechts East. erri Allen,Fred Headley C.D.A.A. Newsletter CAVE DIVERS ASSOCIATION OFAUSTRALIA DIVERS ASSOCIATION CAVE C.D.A.A. Newsletter CA No. 144-JUNE2018 VE DIVERS ASSOCIA No. 144-JUNE2018 Print Post No.PP 381691/00020 Print Post No.PP 381691/00020 (Incorporated inSouthAustralia) (Incorporated inSouthAustralia) TION OF AUSTRALIA GGUUIIDDEELLIINNEESS CONTACT LIST CONTENTS Please contact the most relevant person or, if unsure write to: C.D.A.A. P.O. Box 544 Mt Gambier SA 5291 www.cavedivers.com.au Editorial - Meggan Anderson 5 NATIONAL DIRECTOR - Peter Wolf National Committee Updates 6-9 Email: [email protected] Mobile: 0413 083 644 AGM Notice - Elections, Voting, etc 11 MEDIA CONTACT - Peter Wolf Site Access 36-37 Email: [email protected] Mobile: 0413 083 644 Instructor List 39 Risk Officer – Marc Saunders Mobile: 0412 956 325 Email: [email protected] Articles... Search & Rescue Officer - Richard Harris Email: [email protected] Mobile: 0417 177 830 Out & About with Meggan Anderson 12-15 STANDARDS DIRECTOR - John Dalla-Zuanna Mobile: 0407 887 060 Kisby’s Agreement - Leon Rademeyer 16-17 Email: [email protected] The Case of the Exploding Torch - Neville R. Skinner 18-21 Quality Control Officer – John Dalla-Zuanna Mobile: 0407 887 060 Email: [email protected] Bent in Eucla - Peter Mosse & Graeme Bartel Smith 22-24 Instructor Materials - Deb Williams Mob: 0419 882 800 Greece - Eurpoe’s New Cave Country 26-30 Fax: 03 5986 3179 Email: [email protected] -
How to Help Someone Having a Panic Attack
How to Help Someone Having a Panic Attack 1. Understand what a panic attack is. A panic attack is a sudden attack of extreme anxiety. It can occur without warning and for no obvious reason. The symptoms are listed under the tips sections of this article. In extreme cases, the symptoms may be accompanied by an acute fear of dying. Although they are quite distressing, panic attacks are not usually life-threatening and can last from 5 - 20 minutes. It is important to note that the signs and symptoms of a panic attack can be similar to those of a heart attack. 2. If this is the first time the person has had something like this, seek emergency medical attention. When in doubt, it is always best to seek immediate medical attention. If the person has diabetes, asthma or other medical problems, seek medical help. 3. Find out the cause of the attack. Talk to the person and determine if he or she is having a panic attack and not another kind of medical emergency (such as a heart or asthma attack) which would require immediate medical attention. Check that the cause of poor breathing is not asthma, as asthma is an entirely different condition and requires different treatments. WARNINGS • Panic attacks, especially to someone who has never had one before, often seem like heart attacks. But heart attacks can be deadly, and if there's any question as to which one it is, it's best to call emergency services. • It should be noted that many asthma sufferers have panic attacks. -
Diver Medical | Participant Questionnaire Directions
Diver Medical | Participant Questionnaire Recreational scuba diving and freediving requires good physical and mental health. There are a few medical conditions which can be hazardous while diving, listed below. Those who have, or are predisposed to, any of these conditions, should be evaluated by a physician. This Diver Medical Participant Questionnaire provides a basis to determine if you should seek out that evaluation. If you have any concerns about your diving fitness not represented on this form, consult with your physician before diving. If you are feeling ill, avoid diving. If you think you may have a contagious disease, protect yourself and others by not participating in dive training and/or dive activities. References to “diving” on this form encompass both recreational scuba diving and freediving. This form is principally designed as an initial medical screen for new divers, but is also appropriate for divers taking continuing education. For your safety, and that of others who may dive with you, answer all questions honestly. Directions Complete this questionnaire as a prerequisite to a recreational scuba diving or freediving course. Note to women: If you are pregnant, or attempting to become pregnant, do not dive. Yes I have had problems with my lungs/breathing, heart, blood, or have been diagnosed with COVID-19. No 1 Go to Box A Yes I am over 45 years of age. No 2 Go to Box B I struggle to perform moderate exercise (for example, walk 1.6 kilometer/one mile in 14 minutes 3 or swim 200 meters/yards without resting), OR I have been unable to participate in a normal Yes No physical activity due to fitness or health reasons within the past 12 months. -
Carbon Dioxide Exposure Effects – Fact Sheet
CARBON DIOXIDE EXPOSURE EFFECTS – FACT SHEET Studies by NIOSH in 1976 dispelled the myth that carbon dioxide is an asphyxiant gas and only causes adverse health effects when it displaces oxygen. Symptoms of overexposure by inhalation include dizziness, headache, nausea, rapid breathing, shortness of breath, deeper breathing, increased heart rate (tachycardia), eye and extremity twitching, cardiac arrhythmia, memory disturbances, lack of concentration, visual and hearing disturbances (including photophobia, blurred vision, transient blindness, hearing loss and ringing in the ears), sweating, restlessness, vomiting, shaking, confusion, flushed skin, panic, parathesis (a sensation of numbness in the extremities), disorientation, convulsions, unconsciousness, coma, and death. CO2 Duration Physiological Impact/Health Effect Concentration 1,000 ppm Less than Impairs judgment, decision-making ability, and thinking skills on a 2½ hrs. short-term basis, even for healthy individuals. 2,500 ppm Less than Many individuals are rendered cognitively marginal or 2½ hrs. dysfunctional. 5,000 ppm with Headache, lethargy, mental slowness, emotional irritation, and 20.9% Oxygen sleep disruption. 6% 1-2 mins. Hearing and visual disturbances 7% (70,000 ppm) 5 mins. death with 20.9% Oxygen 10% to 15% Dizziness, drowsiness, severe muscle twitching, unconsciousness and death within a few minutes. Within 1 Loss of controlled and purposeful activity, unconsciousness, coma, 17% to 30% min. convulsions, and death 30% carbon 30 secs. Unconsciousness, with some subjects having seizures that were dioxide, with 70% characterized as decerebrate (no cerebral functioning). oxygen Even though oxygen is necessary to carry out cell functions, it is not the lack of oxygen that stimulates breathing. Breathing is stimulated by an excess of CO2. -
Participant Guide
Participant Guide National High Adventure Sea Base, BSA Sea Base Scuba Programs Islamorada, Florida Scuba Adventure Scuba Certification Scuba Live Aboard Revised Date: 2.23.2021 Mission of the Boy Scouts of America The mission of the Boy Scouts of America is to prepare young people to make ethical and moral choices over their lifetime by instilling in them the values of the Scout Oath and Law. Scout Oath On my honor I will do my best to do my duty to God and my country and to obey the Scout Law; to help other people at all times; to keep myself physically strong, mentally awake, and morally straight. Scout Law A Scout is: Trustworthy. Loyal. Helpful. Friendly. Courteous. Kind. Obedient. Cheerful. Thrifty. Brave. Clean. Reverent. Mission Statement of Sea Base, BSA It is the mission of Sea Base to serve councils and units by providing an outstanding high adventure experience for older Boy Scouts, Varsity Scouts, Venturers, Sea Scouts and their leaders. Sea Base programs are designed to achieve the principal aims of the Boy Scouts of America: • To build character • To foster citizenship • To develop physical, mental, and emotional fitness Keys Blessing Bless the creatures of the Sea Bless this person I call me Bless the Keys, you make so grand Bless the sun that warms the land Bless the fellowship we feel As we gather for this meal Amen Page | 2 Table of Contents General Eligibility Requirements ................................................................................................................. 4 General Eligibility at a Glance -
Beneath Tropic Seas; a Record of Diving Among the Coral Reefs of Haiti
^'%^^ C Ij > iUiJs'fr) R/V ChTiiit-UBRARY BOOKS BY WILLIAM BEEBE TWO BIRD-LOVERS IN MEXICO Houghton, Mifflin Co.—ig05 THE BIRD Henry Holt and Co.—igo6 THE LOG OP THE SUN Henry Holt and Co.—igo6 OUR SEARCH FOR A WILDERNESS Henry Holt and Co.—ig/o TROPICAL WILD LIFE New York Zoological Society—igr^ JUNGLE PEACE Henry Holt and Co. —igiS EDGE OF THE JUNGLE Henry Holt and Co.—ig2l A MONOGRAPH OF THE PHEASANTS H. F. Witherby and Co.—igi8-ig22 GALAPAGOS: WORLD'S END G. P. Putnam's Sons—ig24 JUNGLE DAYS G. P. Putnam's Sons—ig2S THE ARCTURUS ADVENTURE G. P. Putnam's Sons—ig26 pheasants: their lives and homes Doubleday, Page ^ Co. —1926 pheasant JUNGLES G. P. Putnam's Sons—Jg2y BENEATH TROPIC BEAS G. P. Putnam's Sons—1928 ^1 No-Man's-Land Five Fathoms Down Painted by Zarh Pritchard many feet beneath the water on a coral reef in the Lagoon of Maraa, Tahiti ^' BENEATH TROPIC SEAS C" ^ A RECORD OF DIVING AMONG THE CORAL REEFS OF HAITI BY WILLIAM BEEBE, ScD. ^Director of the 'Department of 'tropical 'Research of the V^ew york 'Zoological Society TH SIXTY ILLUSTRATIONS G. P. PUTNAM'S SONS NEW YORK — LONDON 1928 R/V Cjri>*«W BENEATH TROPIC SEAS ex- Copyright, 1928 by William Beebe First printing, September, 1928 Second printing, September, 1928 ^^ Made in the United States of America To ELSWYTH THANE I PREFACE The Tenth Expedition of the Department of Tropical Research of the New York Zoological Society was made possible by generous contribu- tions from members of the Society. -
Dark Zone Diving Has Everything Under One Roof
welcome to A Breath-Taking Experience Like every adventure PROYECTO worth embarking on, Maya Blue Dive Center E Maya Blue has taken a A B C D F G H CONTENIDO 28.54 1.39 Planta general lot of effort, work and 3.13 6.17 4.12 5.05 4.93 3.28 3.60 baños 0 M FECHA dedication from all involved área húmeda 2.76 proyección exterior H techo 27.09.17 in its development. We set 1 salón 1 COTAS barra de refrigerador comida /display cuarto renta inventario equipo de renta 5.50 barra cocina out to create something carretera lounge exterior Metros acceso deck de madera principal recepción salón 2 unique that offered 2 PLANO 1.16 área retail briefing room 3 20.73 AR-01 barra our long-time and new cuarto de bodega servicio tanques 4.17 bodega particular NOTAS customers an alternative 4 9 proyección 1. Las cotas rigen al 8 techo 7 dibujo. 6 2. Se deberán verificar área 5 todas las medidas y to explore Mexico´s ancient húmeda exterior 4 niveles en obra, antes 3 wet room patio de iniciar cualquier 2 trabajo, si existieran 1 7.14 diferencias se deberá Cenotes from a purpose- consultar a la dirección de proyecto. 3. Salvo donde se indique otra cuestión, todas las cotas son a acabados, 5 por lo cual deberán ser built, dedicated facility considerados en la ejecución de la obra. located in the heart of the ESCALA GRÁFICA Riviera Maya run by a team .50 1.5 3.5 5M of passionate adventurers. -
Nfpa 1983 - Hardware Performance Requirements
CMC RESCUE, INC. PO BOX 6870 SANTA BARBARA, CA 93160 (800) 235-5741 / (805) 562-9120 WWW.CMCRESCUE.COM NFPA 1983 - HARDWARE PERFORMANCE REQUIREMENTS What is “3σ MBS?” You might think that answering the question, “How strong is that carabiner (or other item of rescue equipment)?” would be relatively easy. Yet, even with modern, high-tech alloys, two identical carabiners will break at slightly different forces. So a randomly selected sample from a population will perform within some range of break strengths. But to determine how wide that range is and, more importantly, what the lowest strength is, you would have to break every unit in the population. This would be an expensive project, and you’d end up with no useable units! The scientific solution is to use a statistical formula, referred to as three sigma (3σ). Sigma is the Greek letter used to denote standard deviation, a measure of how far a set of numbers (in this case, breaking strengths) is spread out around the mean. To determine a product’s minimum breaking strength (MBS), a sample size is chosen and tested and the results analyzed. The MBS for the entire population is then calculated by subtracting three times the standard deviation (3σ) from the mean result of the tested samples. This provides an MBS that is very near the true lower limit of the population. The larger the sample size, the higher the level of confidence that any individual from the population will meet or exceed the calculated MBS. For testing rescue equipment the NFPA has selected a sample size of five.