Sep 1

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/

Aug 20

The outcomes of reside lower with sporadic subjection to hypoxia, train reduced instruction on efficiency of cyclists are discussed right here.

Ongoing subjection to natural elevation may increase complications for the hurt athlete as well as common recovery could get slowed. The endurance athlete has being provided accurate time periods of recovery following each and every stress workout. Numerous higher performing altitude training camps get the better of cyclists from climbing down to coast level to get high intensity training purpose.

The objective of height training plans is always to improve conditioning ranges in participants either by providing raises ranges of tension in the course of the training sessions or recovery or decreased amounts of stress.Bike riders who get involved within competition come across different training troubles when of working on altitude training. A smart rider or a trainer can be aware of timings of elevation training throughout the season in order that he or she might obtain optimum advantages out of the education plan.

A good fitness instructor has to accomplish bunch of analysis throughout the program with the altitude base exercising towards the best suited cyclist.

Typically the injured athletes might obtain more gains by working the simulated over sea riding because of better heart reply for decreased potential result.Every single physical education practice session induces variation from the rider for the environment and they accomplish the conditioning plateau. A well organized improve within the tension values with the strength exercising lead the rider to greater overall performance.The cyclist who is avoided from increased energy outputs at seaside degree can certainly work out at a high elevation to attain comparatively large core rates.

Better sea level performance may be as a result of elevated EPO release by filtering system, higher red cell mass and highest breathable air assimilation by muscle groups.Irregular hypoxic exposure does alter hematocrit, and alsoperformance during sleep, proving its effectiveness. Endurance training at increased altitudes raises the content level of blood cells and non-hematological results.Increase in plasma level (hemoconcentration) which happens next to the altitude training is incorrectly recognized for increased cellular size.

A note about EPO (Erythropoietin)

Treatments of EPO are unquestionably banned wordwide and result in thickening associated with bloodstream and even heart failure. Get better educated in relation to EPO before deciding these banned actions. Cyclists or runners will improve their overall performance by understanding a little more about complete book of road bike training

Scientists have done a lot of studies and written evaluations on altitude training being a approach supporting to different athletic divisions of sport science.

Advanced long distance runners, demonstrated better sea level efficiency by one.One percent, consequently of the week’s “live high, practice low” technique. Australian experts have detected better activities by “live high” technique with out any kind of increases in reddish colored blood cell mass or maybe increased air expire, realizing their thoughts and opinions that results is improved with height training which can be separate from breathable air expiration.Experts associated with this technique think this a clear placebo-handled device offers not been formed yet.

Concrete facts does not be found promoting the flexibility associated with irregular hypoxia exposure.Paperwork Accessible On Altitude Exercising. Another researcher stated the fact that professional sports researcher coming from Sydney have demostrated profound curiosity on that procedure that is a method associated with height exercise.In the year late 2001, the two scientists stated that the particular ,”live higher, train low” technique in elevation workouts was initially highly successful for athletes taking part in four hundred track race.Wilber published a couple of reviews reports about the evaluation of various high level exercising methods practiced by triathletes which represent diverse competitions. published obvious and evaluations about elevation training of which was go through and got achieved positive results by the riders and their trainers who took portion within world competitors.

SOURCE

Jun 8

At the Royal Bafokeng Stadium on Saturday England play the USA at 1,500m, a few minutes’ drive from the Rustenburg training base used by Capello’s team. Before flying to the country the Italian and his opposite number, Bob Bradley, chose contrasting approaches.

The USA decided not to train at altitude before departing, while England spent two weeks playing and training in the Austrian Alps. The director of London’s Altitude Centre, Richard Pullen, who advised Capello and the Football Association on how best to prepare the England squad, said: “The Americans have not done any preparation at all. This is so that they could have full‑on training sessions and arrive very fit, yet unacclimatised. They have taken a gamble on their fitness being enough to see them through.

“The other way [is to] get acclimatised to altitude so your training and recovery can be impaired and when [the team] arrive you’re not completely as fit as you might be. But you are adapted.”

It is 24 years since a World Cup featured stadiums above sea level and Diego Maradona’s Argentina – who unlike some nations at Mexico ‘86 played all their games at altitude – emerged as eventual winners. As every nation during the group phase will play games at sea level and on the Highveld all have had to ensure preparation has been thorough this time.

“If you see a map of where all teams are based you’ll see it’s at altitude,” Pullen said. “For England or any team that goes to altitude – the first couple of days the training load is reduced while the players get used to it and then [they] slowly increase the load to the maximum.”

Pullen does say that despite the fortnight in the Alps, conditions were not perfect as the ideal stepping stone to Rustenburg, which is much higher than Irdning. “Austria was in all the newspapers as being an altitude training camp. In reality they were at 600m. But they did use an altitude kit, which simulates higher altitudes. So in Austria they had access to testing equipment to have their bodies physiologically adapted to the higher altitude they’ll experience in South Africa. But what they haven’t done is prepare for the dynamics of how the ball will move differently, and the drier air – the environmental conditions they’ll find in Rustenburg.”

Becoming familiar with a faster, more unpredictable ball is as imperative as ensuring Capello’s squad rest correctly. “Recovery is not just about sleeping, it is about active recovery, about making sure players have recovered from training sessions,” Pullen said. “There will be monitoring to make sure players are eating properly, hydrating properly, because at altitude you can lose appetite. It’s very important that they look after their health properly.”

Players and footballs have altered experiences in rarefied air due to the reduction in oxygen found at altitude. “Basically as you go up your body tries to produce more red blood cells to be able to transport oxygen around the body,” said Oxford University’s Dr Patrick McSharry. “This means that at high altitudes some people get acute symptoms like nausea, sickness, headaches, lots of horrible things that wouldn’t make it easy to compete in football.”

But it is difficult to know which players will suffer more. “One of the problems is that it seems to vary greatly from person to person so you can’t just predict what will happen to the whole team,” McSharry said. “Some members may be completely fine, others severely impacted.”

Whatever the vagaries Pullen is confident that Capello and England have prepared correctly by leaving themselves nine days between arrival and kicking off against the USA. “They’ve been doing the training in Austria with our equipment and have gone there with plenty of time ahead of the first match,” he said. “And, they’re playing it at the same altitude as where they’re based – so it’s very good.”

Radebe, however, suggested that the USA may still have an edge because of their experience when reaching the Confederations Cup final in South Africa last summer. “America have been here before and the coach knows the conditions,” he said. On Saturday England will begin to find out how well they are adapted.

FULL STORY

Jun 6

Tuesday, June 1st, 2010

What is Altitude Training?

Altitude training, also known as hypoxic training, involves exercising in, living in or otherwise breathing oxygen reduced air for the purpose of improved athletic performance, pre-acclimatization to altitude and/or physical wellness.

Traditionally, individuals had to travel to or live at high elevations to obtain the benefits of this phenomenon. Through the production of the mountain air generators we can simulate altitudes of up to 21,000ft/6,400m. As a result, athletes, fitness enthusiasts and health conscious individual’s worldwide can take advantage of the benefits associated with altitude training while at sea-level.
Proven Benefits
. Maximized speed and endurance
. Elevated strength and power

SOURCE

Jun 4

Lippi blamed fatigue for the Azzurri’s loss.

By Salvatore Landolina

Jun 3, 2010 3:15:00 PM

Marcello Lippi - Italy (Getty Images)

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Marcello Lippi - Italy (Getty Images)

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Italy coach Marcello Lippi has played down the 2-1 defeat to Mexico by shifting the spotlight from a lackluster performance to a hard training regime.

Carlos Vela and Alberto Medina ensured the Azzurri’s pre-World Cup preparations got off to the worst possible start. Leonardo Bonucci cut the deficit, but it was not enough.

“We have been in the mountains training for 10 days and we have just come back to play a against a team in much better condition than we are and who have played seven times already, and you have to take that into account,” Lippi told Rai Sport.

Lippi though remains defiant that his Azzurri stars will be ready for the World Cup, claiming the altitude training has shown its effects tonight as the players struggled.

“I know my players, I have spoken to them and they told me they were tired before the game. What’s important is to be in good condition in 10 days when we are in South Africa, not now.

“If we had played seven games like they did then we would have been in better condition.”

SOURCE:

Mar 3

Centinaio, A., Cominardi, M., Bergero, D., Rose, G. A., McLeod, G.
L.P. Veterinario FEI, Clinica Veterinaria della Brughiera, Via Monte Rosso 51, Cardano al Campo (VA), Italy.

Abstract:

The aim of this preliminary work was to evaluate the effects of a new machine (GO2Altitude) in horses with haemolytic parasite infections or anaemia compared to traditional drug therapy. The study was carried out on two groups of horses. Group I included 44 horses that were positive for haemolytic parasitoses, and was then subdivided into two subgroups depending on the therapy followed: Group I/A, 22 horses treated with a sterilizing therapy and traditional reconstituent therapy and Group I/B, 22 horses treated with a sterilizing therapy and afterwards with the GO2Altitude. Group II included horses that, although did not have important alterations in their blood parameters, had underlined a number of red blood cells near the lowest physiological limit (threshold for anaemia). Two subgroups were obtained following the treatment used: Group II/A, 10 horses treated with traditional reconstituent therapy and Group II/B, 10 horses treated with traditional reconstituent therapy (10 days treatment) and afterwards with GO2Altitude. A first blood sample was taken before any kind of treatment; a second sample was taken after 20 days and a third at 50 days from the first blood sample. Erythrocytes, haemoglobin, haematocrit, MCH, MCHC and MCV were evaluated in each sample. For the horse near the threshold for anaemia, the innovative treatment proposed improved these parameters. The results obtained confirm the initial hypothesis of the efficiency of GO2Altitude to help recover those subjects with haemoparasitic pathologies and with anaemia, and therefore places interesting perspectives to a wide range of use of this instrument for the sport horse.

Jan 15

Abstract The possibility of using intermittent hypoxic training for stimulation of physiological mechanisms underlying the compensatory hemodynamic reactions to orthostatic load was studied in animal experiments. Intermittent hypoxic training had a favorable impact on circulatory reactions, which manifested in stabilization of blood pressure and heart filling pressure and in a decrease in orthostatic hypotension during the initial period of orthostasis. We hypothesized that the positive effect of intermittent hypoxic training on the correction of negative hemodynamic shifts is determined by the training effect aimed at the increase in the vascular tone and venous return to the heart. These results can serve as validation for preventive use of intermittent hypoxic training for reducing blood draining in the lower part of the body, correction of the compensatory orthostatic reaction of the circulatory system, and hence, for improvement of orthostatic resistance.

Full Article

Nov 5

Section 3. Intermittent Hypoxia and Nervous System; Hypoxic Preconditioning Protects Against Oxidative Injury in the Central Nervous System; Effects of Intermittent Hypoxia on Neurogenesis in the Adult and Parkinsonian Rat; Neurotransmitter Synthesis during Intermittent Hypoxia: Role of ROS-Dependent Post-Translational Protein Modifications;

Oct 10

improvement in performance could also be explained by other mechanisms involving muscular, hormonal or respiratory parameters as improvement in locomotion economy, muscle buffering capacity, or ventilatory efficiency. Indeed, the expert scientists in the field have recently been debating whether or not the benefits of altitude training are mediated primarily by an increased RBC (4).

Physiological adaptations to altitude

Altitude induces hypoxia (an inadequate supply of oxygen to body tissues) and arises as a result of a reduction in the inspired oxygen pressure (PiO2). PiO2 decreases with increasing altitude; at sea level PiO2 is 149mmHg, but PIO2 is only about 50mmHg on the top of the Mount Everest – ie each lungful of air contains only around a third of the oxygen compared to sea level.

FULL ARTICLE

Aug 19

An altitude-induced PiO2 reduction, consequently leads to less oxygen available at the alveolar level in the lungs (PaO2), which in turn leads to less oxygen in the arterial blood (PaO2).

The altitude-induced decrease in PaO2 also induces a reduction in and kidney oxygenation (5). This reduction in kidney oxygenation is responsible for the stimulation of the production and the release of the hormone erythropoietin (EPO)(6). EPO stimulates red blood cell synthesis in the red bone marrow (7), which induces an increase in blood haemoglobin concentration. Higher haemoglobin concentrations increase the oxygen carrying capacity of the blood, which can therefore help restore endurance performance.

Another effect of altitude-induced decrease in PaO2 is an increase in pulmonary ventilation (Ve). This hyperventilation acts to partly offset the effects of altitude on PaO2 by helping to restore normal O2 delivery to tissues(8).

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