Altitude Training | Hypoxic Training

Medicine and science in sports and exercise. 01/09/2006;

http://www.researchgate.net/publication/6899290_Leukocyte%27s_Hif-1_expression_and_training-induced_erythropoietic_response_in_swimmers

By: Mona Brown

October 1, 2010

In recent months FAA Administrator Babbitt has promoted specific tailored hypoxia training, along with high-altitude handling, for commercial and private pilots who want to fly at high altitude. Indeed, FAA Title 14 of the Code of Federal Regulations (14CFR) establishes mandatory requirements for high-altitude training using military altitude chambers at 15 U.S. locations, but few chambers are available for candidates in other countries and theoretical presentation is often the limit of studies. However, Biomedtech Australia at Moorabbin, Melbourne, has developed a range of hypoxicators under the trademarks of “go2altitude” and “Altipower” that can provide an acceptable alternative to training in the chamber.

In the last 30 years several accidents have highlighted the importance of hypoxia training. On Sept. 25, 1979, an instructor and student on type conversion were killed in the crash of Beech King Air 200 G-BGHR. Investigators blamed the accident on oxygen system failure. Two decades later, on Oct. 25, 1999, Learjet 35 N47BA crashed, killing the crew and four passengers, including golfer Payne Stewart. The accident was attributed to the airplane’s failure to pressurize. The Sept. 4, 2000, crash of Beech Super King Air 200 VH-SKC killed the pilot and seven passengers. Investigators attributed the accident to a pressurization failure. Finally, a Boeing 737 (5B-DBY) crashed Aug. 14, 2005, killing the crew and 115 passengers. Failure to pressurize was listed as the cause.

The Greek AAIASB report into the 737 accident includes a recommendation that “EASA/JAA should require practical hypoxia training as a mandatory part of flight crew and cabin crew training. This training should include the use of recently developed hypoxia training tools that reduce the amount of oxygen a trainee receives while wearing a mask and performing tasks.” The Biomedtech system was demonstrated to airline personnel at a CAA seminar as an option for hypoxia training.

Researchers were already studying hypoxia before World War I, but it was not until the mid-1930s that the Mayo Clinic investigated the effect of varying the oxygen proportion of air supplied to a pilot’s mask. Unfortunately, it was impossible to measure gas proportions accurately, and the results were inconclusive.

After the 1968 Olympics at Mexico City it became obvious that athletes who trained at high altitude had a significant advantage over those who had trained at lower levels, and Simon Bassovitch of Biomedtech Australia at Moorabbin, Melbourne, started to research the feasibility of providing a portable simulated high-altitude training environment for athletes.

The result was called “hy­­poxicators” and by 1992 Bassovitch specialized in the supply of these systems, which varied the ratio of oxygen to nitrogen to achieve a particular altitude. These hypoxicators–used by athletes worldwide–can help pilots recognize hypoxia without the use of an altitude chamber. Using membrane technology to vary the required oxygen/nitrogen mix, Biomedtech has eliminated the need for cumbersome gas cylinders. The examinee has to hold a breathing mask to his face, experiencing all symptoms of oxygen starvation while being asked to carry out various exercises. All test results are recorded automatically and copies are presented to the candidate in written or DVD form.

Since there is no requirement to have an altitude chamber, trainees need not meet the medical standards required to experience explosive decompression, providing greater flexility of operation.

The effects of concurrent hypoxic/endurance training on mitochondrial respiration in permeabilized fibers in trained athletes were investigated. Eighteen endurance athletes were divided into two training groups: normoxic (Nor, n = and hypoxic (H, n = 10). Three weeks (W1-W3) of endurance training (5 sessions of 1 h to 1 h and 30 min per week) were completed. All training sessions were performed under normoxic [160 Torr inspired Po(2) (Pi(O(2)))] or hypoxic conditions ( approximately 100 Torr Pi(O(2)), approximately 3,000 m) for Nor and H group, respectively, at the same relative intensity. Before and after the training period, an incremental test to exhaustion in normoxia was performed, muscle biopsy samples were taken from the vastus lateralis, and mitochondrial respiration in permeabilized fibers was measured. Peak power output (PPO) increased by 7.2% and 6.6% (P < 0.05) for Nor and H, respectively, whereas maximal O(2) uptake (Vo(2 max)) remained unchanged: 58.1 +/- 0.8 vs. 61.0 +/- 1.2 ml.kg(-1).min(-1) and 58.5 +/- 0.7 vs. 58.3 +/- 0.6 ml.kg(-1).min(-1) for Nor and H, respectively, between pretraining (W0) and posttraining (W4). Maximal ADP-stimulated mitochondrial respiration significantly increased for glutamate + malate (6.27 +/- 0.37 vs. 8.51 +/- 0.33 mumol O(2).min(-1).g dry weight(-1)) and significantly decreased for palmitate + malate (3.88 +/- 0.23 vs. 2.77 +/- 0.08 mumol O(2).min(-1).g dry weight(-1)) in the H group. In contrast, no significant differences were found for the Nor group. The findings demonstrate that 1) a 3-wk training period increased the PPO at sea level without any changes in Vo(2 max), and 2) a 3-wk hypoxic exercise training seems to alter the intrinsic properties of mitochondrial function, i.e., substrate preference.

Journal of applied physiology (Bethesda, Md. : 1985).

http://www.researchgate.net/publication/6803051_Effects_of_intermittent_hypoxic_training_on_amino_and_fatty_acid_oxidative_combustion_in_human_permeabilized_muscle_fibers

The results of live reduced with intermittent getting exposed to hypoxia, train low training on efficiency of cyclists are reviewed here.

Ongoing exposure to normal elevation might add more complication towards the hurt cyclist as well as general recuperation could get delayed.The endurance cyclist has to be given right time periods of recovery after every stress training. Numerous high performing height training camps discourage cyclists from descending to coast level to get large intensity training objective.

The range with the exercises has to become produced in thoughts depending upon the fitness skill level achieved through the rider in a time period. Cyclists are exposed to problems of reduced breathable air intake along with hard physiological activity and this situation is usually referred to as hypoxia or a lack of oxygen.

Higher level training will certainly not be categorized so distinctly as beneficial or negative. Because elevation subjection progresses, your physiological results on the cyclist’s body must be examined to fluctuate the future training structure.

Usually the hurt triathletes may get at additional added benefits by executing the non-real elevation riding because of bigger cardiac response for decreased potential result.Every physical coaching workout session influences variation on the cyclist to the atmosphere and they achieve the conditioning skill level. A scientific boost in the anxiety amounts from the endurance training guide the cyclist to higher efficiency.The rider who is prevented from higher potential components at sea levels might train at a large altitude to accomplish fairly large core rates.

In that respect there looks like being no relationship between the EPO enhance with red blood cellular improve or perhaps maximal oxygen uptake or enhanced overall performance.

The trainer should do an important mountain bike training programs study during the application of the altitude endurance training to the appropriate participant

Scientists have done a great deal of studies and posted assessments on high level direct exposure like a technique encouraging to additional athletic categories of cycling science.

Intense descriptions from the procedure and rewards of altitude instruction happen to be published in numerous comprehensible assessments.Researchers in the European countries have been the first to provide out their own summaries on the effects of elevation training performed on professional some athletes.

Aside from the researchers mentioned above in the European countries were the initial to present out their reviews on the benefits connected with height exercising performed on skilled sports athletes such as different strength sports. Details upon Altitude Training Analysis. Inside the year about 10 years ago, a couple of doctors, and recognized altitude experts specifically, Allan Hahn and Chris Gore written and published clear reviews concerning elevation coaching that was go through and got achieved positive results by the riders and their coaches who took portion in planet opposition.

In spite of such complex reviews, intervals education remains to be a mystery for any trainers around determining other athletic sports

FULL ARTICLE:

http://www.yagga.co.uk/?p=131

European journal of applied physiology. 01/11/2007;

http://www.researchgate.net/publication/6202789_Effects_of_intermittent_hypoxic_training_on_cycling_performance_in_well-trained_athletes

We often take breathing for granted; after all, we do it automatically. But, when our breathing isn’t efficient, when we breath poor quality air, our health can suffer. We often turn to inhalers or other drugs, and occasionally to meditation. We may even learn proven new breathing techniques like the Buteyko Method.

Now, Dr. Tamara Voronina has taken a health-improving technique reserved for Olympic athletes, pilots and astronauts and made it available to everyone. She has even started a special cruise line to highlight her new treatment: Rejuvenation Cruises.

The new treatment, Intermittent Hypoxic Training (IHT), was first introduced into Britain by Dr. Voronina. According to her website, this technique results in relaxation, strengthening of the immune system and release of excess water and detoxification. The following can be treated with this approach:

-Depression, panic attack and anxiety

-Pulmonary conditions, such as asthma and chronic occupational lung diseases

-Cardiovascular diseases, all conditions which are connected with poor circulation

-Metabolic diseases, such as obesity, diabetes, high cholesterol

-Skin diseases (acne, eczema, and allergy)

-Eye trauma

-Iron deficiency anemia

-Fatigue

-Reduction in post-radiation therapy side effects

-Improved sport performance

-Improved sexual health

Dr. Voronina also offers equipment so that this training can be done at home.

Intermittent hypoxic training is a method that can make the body use oxygen effectively and this way slow down the disintegration of our body. This method consists of the patient repeatedly inhaling air via special altitude equipment for a few minutes at a time whose oxygen content is equivalent to the air at an altitude of 3500-5800 meters above sea level. (rejuvenationcruises.org)

http://www.trendhunter.com/trends/hypoxic-health-rejuvenation-cruises-breathing

European journal of applied physiology. 01/11/2008;

http://www.researchgate.net/publication/23482667_Effect_of_intermittent_hypoxic_training_on_HIF_gene_expression_in_human_skeletal_muscle_and_leukocytes

European journal of applied physiology. 01/04/2009;

FULL ARTICLE

http://www.researchgate.net/researcher/38177302_Belle_Roels

The problem of hypoxia is a multi-headed Medusa in physiology and clinical medicine. Two main aspects of this problem are hotly discussed: the destructive and the constructive action of hypoxia. One viewpoint belonging primarily to western scientists is perfectly expressed in Barcroft’s words: “Hypoxia not only intercepts the machine, but also damages the mechanism”. The second veiwpoint, expressed primarily by the former Soviet Union (FSU) scientific schools, reads as follows: “Hypoxia (even severe but brief and intermittent) can cause beneficial effects on an organism”. However, many a scientific publication was in Russian or Ukrainian and because they were not widely available in other countries, these research findings remained obscure. The purpose of this review is to summarize some past and recent achievements in the field of intermittent hypoxic training (IHT), giving special consideration to applied problems in the treatment of bronchial asthma (BA).

Historical aspects

Historically, first steps in the use of IHT were for training pilots, mountaineers and athletes. The pioneering research, carried out in 1939-1943 (see 1 for review), showed that even a small altitude elevation produces positive adaptation effect, improving lung ventilation and increasing hemoglobin concentration and arterial oxygen saturation. The research of the time drew attention not only to constructive and creative hypoxic training but also to possible curative effects of hypoxic adaptation. More than 30 years later, other studies have shown that a training protocol that includes gradual adaptation to hypobaric hypoxia improves the working capacity and endurance of athletes and astronauts. Inhalation of hypoxic gas mixtures to produce IHT was rapidly introduced into sports training and diseases treatment procedures. IHT protocols and equipment were devised and manufactured for this purpose.

FULL ARTICLE

2010 by Oleg Bassovitch

Recently published Letter to the Editor titled “Intermittent hypoxic training: risks versus benefits” (Hinghofer-Szalkay, 2010) suggested inquiring into the  long-term risks of Intermittent Hypoxic Training” (IHT), that is also called Therapeutic Hypoxia (TH). The letter points at potential risk of Reactive Oxygen Species (ROS) formation. From the biomedical point of view it is important to separate hazards associated with the use of a device / system and physiological risks and benefits of the therapy itself.

Undoubtfully, a device for human or animal treatments must be meeting essential requirements for medical devices e.g. electrical medical safety and electromagnetic compatibility (IEC 60601-1, 2007).

Devices and systems for hypoxia intervention are called “hypoxicators” and were recently suggested by Australian Therapeutic Goods Administration being mandatory regulated for all applications (TGA, 2008). Hypoxicator falls under the common definition of medical device because of it intended use e.g. “modification of physiological process” (Council Directive 93/42/EEC, 1993).

This letter is a brief review of physiological risks associated with the use of hypoxicators and IHT for human performance enhancement, in both athletic and sedentary populations.

ACCESS TO FULL ARTICLE

http://www.springerlink.com/content/4632×38184754513/