Shallow Water Blackout: Hypoxic Training’s Secret Killer
If you could turn off your body’s natural urge to breathe while holding your breath underwater, would you do it? Hypoxic training in shorter terms is breath control training, which requires swimmers to limit the amount of oxygen intake during a particular set. It heightens the feeling of discomfort and requires swimmers to use the little oxygen they obtain more efficiently.
Hypoxic training closely ties with hypercapnia, or the body’s natural urge to breathe, by increasing the ability to resist this reflex (McCarthy). The topic of hypoxic training has been prominent in the swimming world for a long time but especially so after the death of the North
Baltimore Aquatic Club (NBAC) swimmer
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It also mentions specific organizations, such as the YMCA and the American Red Cross, to emphasize that big influential health organizations are taking notice of the danger of underwater fainting as a result of prolonged breath holding. The article also briefly mentions that more briefings and rules are being implemented to stop these deaths from occurring. The credibility of this source is sound, as it was found through the use of the University of South Florida library database.
McCarthy, Dan. "Hypoxic Training: Misunderstood Application." USA Swimming. USA
Swimming, 01 May 2012. Web. 13 Sept. 2015.
The article “Hypoxic Training: Misunderstood Application” mainly overviews what a shallow water blackout is and then goes into detail about hypoxic training. Due to popularity in the swimming world, hypoxic training usually involves little to no breathing sets to better increase a swimmer’s competition time. The article also touches on the difference between hypoxic training and altitude training, which is that altitude training athletes are breathing less pressurized air while hypoxic training athletes are just breathing
The respiratory system undeniably serves a very important function in the body. Anyone who has had any event where they couldn’t breathe normally, or maybe not at all, recognizes the importance and mental peace that comes with being able to breathe stress free.
In this lab, we explored the theory of maximal oxygen consumption. “Maximal oxygen uptake (VO2max) is defined as the highest rate at which oxygen can be taken up and utilized by the body during severe exercise” (Bassett and Howley, 2000). VO2max is measured in millimeters of O2 consumed per kilogram of body weight per min (ml/kg/min). It is commonly known as a good way to determine a subject’s cardio-respiratory endurance and aerobic fitness level. Two people whom are given the same aerobic task (can both be considered “fit”) however, the more fit individual can consume more oxygen to produce enough energy to sustain higher, intense work loads during exercise. The purpose of this lab experiment was performed to determine the VO2max results of a trained vs. an untrained participant to see who was more fit.
After this the men will find themselves doing hours of calisthenics to warm up, only to go back in the cold water for a few more hours. This is a very effective way to teach a potential Seal to mentally resist the effects of hypothermia,...
Morace, Robert A. "The Swimmer: Overview." Reference Guide to Short Fiction. Ed. Noelle Watson. Detroit: St. James Press, 1994.Literature Resource Center. Web. 30 Jan. 2014.
Prisoners were subject to freezing experiments as scientists looked for an effective treatment for hypothermia. Scientists also wanted to discover how long German pilots downed by enemy fire could survive the frozen waters of the North Sea. Some were forced in a tank of ice water at sub-zero temperatures for up to five hours. Others were left outside to freeze in the winter cold. Numerous victims lost consciousness and died when their body temperature dropped to 25 degrees Celsius. It was also found that humans could not survive immersion in the North Sea for more than two hours. By studying the effects of this cold exposure and meticulously noting the changes in the subject’s body temperature, heart rate, and muscle response...
First, Maya and the family should be encouraged and helped to alternate the intervals of resting and activity. The rationale is that, this will help their bodies to reduce the demand for oxygen and also reduce hypoxia level. Maya should also be assisted in deep breath taking movements and mild body turning exercises. Rationale: this promotes best chest expansion, which boosts the circulation of secre...
Did u know that there is a lot of history behind Olympic swimming? It is amazing how much history there is behind it. According to http://www.olympic.org/swimming-equipment-and-history. The swimming Olympics were started in 1896. The very first Olympic events were free style (crawl) or breaststroke. Backstroke was added in 1904. In the 1940s, breaststroke swimmers discovered they could go faster by bring both arms forward over their heads. Ur body is longer when you do that. This practice was immediately forbidden in breaststro...
Lecture: “Occurs when the stresses of excessive training can exceed the body’s ability to recover and adapt.”
Several forces play significant roles in the movement of the human body through the water. The forces are drag, lift, gravity and buoyancy. Lift and drag are the main propulsive forces that are used by swimmers. Resistance, known as drag, can be broken into three main categories: frontal resistance, skin friction, and eddy resistance. The effect of buoyancy in swimming is best described by Archimedes’ principle: a body fully or partially submerged in a fluid is buoyed up by a force equal to the weight of the fluid that is displaced by the body.1 This effectively negates any effects that gravity might have on a swimmer. The rare exception to this is a swimmer with very little body fat, and this is overcome by keeping the lungs inflated to a certain degree at all times.
...being educated on the depths and the risks while diving. Moving at a certain speed and to only a certain depth can be ways to prevent nitrogen narcosis. Prevention can also be achieved if the diver is a professional who constantly trains and so has a longer ability to last in those depths than normal individuals. Another method to prevent nitrogen narcosis is to substitute helium with nitrogen to dilute oxygen for diving. The only problem with this is that helium is expensive. If nitrogen narcosis still prevailed and affected someone the treatment is simple as long as people recognize right away that the individual is narced. The treatment includes ascending to the surface of the water at a controlled speed, and trying to avoid gaining other symptoms while being pulled up such as decompression sickness which would just further complicate the treatment.
7. Learn CPR (cardio-pulmonary resuscitation). This applies particularly to pool owners and water sports enthusiasts.
The Mechanism and Regulation of Breathing Breathing is an involuntary movement that is controlled by the medulla, which is part of the hind brain. Air is sucked into the lungs. through an active process called inspiration. The external intercostals muscle contract and the internal intercostals muscle relax this causes. the ribs to be drawn upwards and outwards.
In conclusion, Bintzler was correct in her statement, “Aquatic therapy is used as a technique to better a person's life physically, socially, physiologically or psychologically.” Not only what goes on in the water during a swimming or aquatic therapy session is inviting to all disabled people, but the assists available to them such as flotation devices, pool lifts, and stair systems (NCPAD.org) make swimming irresistible. After continuos success in the water, the disabled person will reach a new level of confidence that will eventually translate out of the water in his daily life. Moreover, he will be able to live a more confident, pain free life due to swimming therapy’s ability to empower a disabled person physically and mentally.
In news stories the world over there are cases of pets and occasionally humans that have fallen into icy lakes and been submerged for up to and over an hour. Often the human or pet will perish due to the cold temperature of the water but in some cases are pulled free and are resuscitated; surviving their ordeal and being effectively ‘restored’ from what is considered by normal standards certain death. The idea that conscious beings could survive such trauma is that the icy water lowers body temperature and places it into a state of suspended animation, slowing metabolism and brain function to levels where they require very little or no oxygen at all.
Any form of competitive swimming did not appear until the 1800s in Europe when schools accepted swimming as a natural part of life education. In the 18th and 19th century it became a competitive sport than being just a life saving skill. Swimming teams and clubs started to evolve all over the world. Although England was the first country to have an inside pool they aren’t one of the first countries of all times , China, Germany and Sweden were the first countries in swimming history. England and also invented the side stroke and after this one the freestyle evolved. Although there aren’t swimming competitions of side stroke it’s also known as a global stroke. In this essay I’m going to explain the changes of swimming for example the technology in swimming pools, the changes in bodies of the people that swam and more.