A few athletes have been wearing bands around their arms and legs while they exercise. Experts discuss what these bands do for the Olympians.
Michael Andrew and marathoner Galen Rupp use these “tourniquet-like bands” during training. While this might seem odd to a casual observer, these straps are likely used for what’s known as blood flow restriction training. This training relies on slowing the blood flow to a muscle by using a strap or cuff while a person lifts 15 to 30% of their normal lifting weight.
“The research has shown that exercising with this tourniquet on gives you comparable gains in strength that you would see with normal heavy lifting,” Evan Luse, a physical therapist at the Jameson Crane Sports Medicine Institute at the Ohio State University, told TODAY. “One of the advantages is that you do not need to use heavy weights. Typically you use anywhere between 15 to 30% of your one repetition max and we see similar gains.
“You don’t get nearly as much actual muscle tissue breakdown so you can do it more often,” Luse said. “One of the things that we’re seeing in the Olympics — especially as this technology becomes more widespread in sports — is that this is used when you get closer to competition to supplement. You’re doing something that’ll give you continued strength gains without making you feel really sore or actually damaging your muscle tissues.
Blood flow restriction training works because it sparks an increase in certain substances essential in developing muscle mass.
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