Restrictions on blood flow appear as a hot new exercise among Olympians

Every four years, the Summer Olympics show the world the latest training or recovery techniques. Linn In 2016, many swimming pools had red circles on the skin from “excavations” of ancient Chinese practice of pulling on injured muscles and tendons. This year’s hottest seems to be a holiday. No, there is no epidemic. But American swimmer Michael Andrew wore a “turret” band in a swimming pool. In the marathon, defending bronze medalist Galen Rupp sometimes tied the same bands with his feet during training.

They are one of the most famous athletes in the field of blood flow, and this is exactly what it looks like: to reduce blood flow to certain muscles, to increase training results and to stimulate recovery.

The practice came into fashion during the Tokyo Games. In 1966, Yoshiyaki Sato, a former Japanese power plant, is nearing completion. Sato (73) is a Japanese version of Jack Lalene, who is making a small fortune in the process, pulling the strings and spreading the gospel to many of his adults. He has developed a series of products called kitssu that regulate blood flow. Sato still practices daily blood pressure control, and he is impressed by the attention he is now receiving.

‘Live High, Low Train’

“It has always been a matter of time,” he said in an interview with his home in Fukuo, Tokyo. “I never thought it would take so long.” In recent years, Dr. Jim Stray-Gunderson, a physician and sports researcher who has worked closely with Olympic organizations in the United States and Norway, has found a key advocate for limiting blood flow across the Pacific.

He developed the “high, low train” method of training at high altitudes, which requires an athlete who sleeps more than 8,000 feet to increase the production of oxygen-carrying red blood cells, and then goes to training for a few thousand feet to avoid overcharging. Body.

Stray-Gunderson has been training with Sato for the past decade, and before the two separated, he was known as the “Catsu Master”. Then Street-Gunderson. In 2016, he developed his own blood pressure control system and a company called Bronron: “You can get 10,000 yards of swimming in the near future.” Five-year-old Tokyo star, who swims in three individual events, says he began experimenting with the blood pressure limit requested by veteran coach Chris Morgan five years ago.

He often tries to achieve the same results for 25-yard runners by tying the knots on his hands. “It’s really hard,” Andrew said in an interview this month. “But they seem to be a real pain in the ass.” After years of using the products, the swimmer entered into a small business deal with Sato. (If a customer uses Andrew’s code, Katssu contributes 20% of the sales to the bargain.) Before and after training and competitions, Andrew wears a high-powered device on each leg, which regularly increases and reduces the tension of the turret. Gaps – Consider lowering blood pressure – to stimulate blood flow and recovery. Sometimes they dress the band in a ready-made room before going to the pool.

Not everyone jumped on the bandwagon. Dave Marsh, who has coached a number of swimmers to lead the Israeli team to the Olympics in Tokyo, said one of his athletes had used blood pressure to recover from injury, but had not yet given that advice during the training.

“The first job of a coach is to do no harm,” Marsh said. It seemed to me that restricting blood flow could cause an athlete to take a step back. ”Like any good sports scientist, Street-Gunderson wanted to see the information when a co-worker told him that restricting blood flow was helping athletes build muscle mass, which he normally takes six times in two weeks. As of its release, it was published in 2000 by the Sato and Scientific Research Institutes in Japan, in the Journal of Applied Physiology.

In short, the paper argues that restricting blood flow has allowed the brain to respond more quickly to speed up the normal process of repairing and rebuilding damaged tissues. Cutting off blood flow, then reversing it, can stimulate the brain to use more healing powers than normal. Following that study, a number of independent researchers have identified the benefits of restricting blood flow during exercise. Sean M. Arent, chair of the Department of Physical Sciences at the University of South Carolina, is currently studying the effects of the Department of Defense.

Fitness sacrifice

Early trends suggest that this can be especially effective when athletes are recovering from injury before or at the end of a season and want to regain exercise without training.

It is a good complement to training; Not all of them are yours. ” Provides physiological stimulation when other factors may be limited.

For Andrew, or Rup, who swims thousands of yards a day, or Rup over 100 miles of weight training and workout every week, or New York Mets Noah Cher Noah Cindergarten, or champion Skir Mikhail Shifrin or anyone else, the method is a recurring stress. It allows them to reduce risk and speed up recovery time.

For Andrew, the most important part of the technique may be how strongly he believes he works. As every sports scientist knows, placebo can often be as strong as any medicine. “I did something like 18 races in seven days, and I felt new,” says Andrew. I’m sure it was because he disciplined me so well with his recovery. I always used it. ”

– New York Times News Service

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