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Description: Craig Heller is AVAcore Technologies Co-Founder/Chairman. With a Lead411 subscription, AVAcore Technologies email addresses ( @avacore.com ) of the executives are viewable. Other information includes Craig Heller email, phone, and extension.
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Site Reference: http://www.avacore.com/newspop.html#hell
Craig Heller and Dennis Grahn conducted a series of experiments on "exertional hyperthermia" and the methods for combating it. What they found was surprising. Bringing someone suffering from hyperthermia into a cool environment, it turns out, is precisely the wrong thing to do. When warm skin encounters coldness, the blood vessels near the surface of the skin constrict. Heat becomes trapped inside the body and is redirected to the core, which causes a spike in temperature. RTX, known informally as the Glove, cools athletes from the inside out, rather than the outside in. It is premised on the little-known fact that our palms, along with the soles of our feet and our cheeks, are "natural mammalian radiators," as Heller puts it. When the body is overheated, it naturally increases blood flow to the palms. The Glove consists of an airtight, transparent chamber shaped like a giant Dustbuster, inside of which is Stanford animal physiologists, observed that all mammals cool themselves by releasing heat as sweat. The problem for humans occurs when we do things that push the envelope or that we're not adapted to do, like exercising so intensely that the sweat doesn't evaporate and carry off heat, or wearing heavy protective pads that don't allow heat to be dissipated readily. In order to help nature do its job under these conditions, the researchers began to look for artificial ways to augment our natural heat dissipating system. They came up with the RTX, which takes advantage of and amplifies the body's normal cooling mechanism that consists of pumping blood to the surface of the skin so that heat can be released into the air. Unfortunately this cooling mechanism, besides being inadequate at times, can impair performance by shunting blood and oxygen away from exercising muscles. With less oxygen the muscles and Dennis Grahn from the Stanford University in California, draws heat rapidly out of the body through a water-cooled steel plate in a hand-size device. "When an athlete puts their hand in the chamber, the steel plate efficiently draws heat from blood circulating through their hand. The cooled blood flows back to the heart and is recirculated, cooling other organs by as much as three degrees Centigrade (5.4F)," New Scientist magazine said on Wednesday. Athletes can return to the field legally reinvigorated after a session with the RTX, with more oxygen reaching their muscles in the cooled down blood, according to the scientists. Julian Nikolchev, president of Avacore Technologies which has been licensed to market RTX said the hi-tech glove could also help save lives. Cooling the bodies of people who have just had strokes or heart attacks can reduce the damage they suffer, and the device might and Dennis Grahn at the Californian university. The glove - which is called RTX for Rapid Thermal Exchange - has performed well in tests and is attracting attention from outside the sporting sphere. New Scientist reports that the US Food and Drug Administration has approved its as a means of regulating patients' body temperature. Close this window and return to the News menu 'Cool glove' helps athletes keep going By BBC NEWS Wednesday, 23 October, 2002 Exhausted athletes could be helped to finish a race with a high-tech glove. The device has been designed by US researchers, who say it can prevent athletes becoming tired and overheated by rapidly cooling their internal organs. When a person is active, they are kept cool by diverting blood from deep inside the body to just beneath the skin of the palms of the hand and the soles chairman of Stanford's Biological Sciences Department and Dr. Dennis Grahn, senior research scientist in biological sciences, The Glove quickly cools an over-heated athlete's body temperature at its core, not on the skin's surface. The premise is that cooling the body's temperature by one to two degrees enables a faster recovery, which means better performance, and often the difference between a win and loss. For professional athletes, it can also mean thousands of dollars or no money at all. "I didn't feel much happening when using The Glove, but the results were startling," says Weir. "It enabled me to stretch beyond what I can normally do. It's not a miracle worker, but it's going to become a regular part of my training program." The Glove looks a bit like a character from science fiction. It's a metallic, dome-shaped chamber that seals around the wrist. The chamber connects with thick and Dennis Grahn, the RTX received Food and Drug Administration approval this summer. The machine is based on "the principles of mammalian thermo-regulation," according to AVAcore. Mammals have radiator points, like a rabbit's ears or a dog's tongue, that release heat from the body. The bottom of the feet is a radiator point in humans. So are the palms. The RTX works by pumping cold water through a hose to the underside of the steel plate, which is positioned about waist high. The palm is placed on the plate and encased in a plastic shell. The shell generates suction, which draws blood to the palm and accelerates the thermal exchange. The plate does not feel cold, and athletes cannot detect a change in body temperature. But the RTX has made believers of Stanford and the 49ers. "One day in training camp, we had a guy with a horrible headache," Stanford animal physiologists, had subjects pedal to exhaustion in a "hot" room wearing two sets of long underwear, plastic rainsuits and hooded sweatshirts. After the subjects' temperatures rose to an average of 102 degrees, they stuck one hand in the RTX machine. Their body temperatures dropped to normal range within 15 minutes. When subjects cooled on their own in the same conditions, core temperatures remained elevated for 30 minutes. "The difference was phenomenal," said Craig Coombs, vice president of Human Studies for AVAcore Technologies, the Palo Alto, Calif., company marketing the RTX technology. "You still feel hot because you don't have any thermo-sensors inside your body, but you feel totally refreshed." In other small-scale trials, the researchers also found that athletes who used RTX between sets while weight training made impressive strength gains. Subjects who rode stationary bikes while using RTX were able to pedal up to 40 percent
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