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Why KAATSU Is a Fitness Game Changer

STORY AT-A-GLANCE Blood fiow restriction (BFR) training, which I perceive to be the greatest innovation in exercise training in the last century, was developed in Japan by Dr.

Why KAATSU Is a Fitness Game Changer

Yoshiaki Sato in

1966. There, it's known as KAATSU, which means "additional pressure." KAATSU was brought to the U.S. just over a decade ago by Steven Munatones, after he completed a 13-year mentorship by Sato. In summary, BFR involves partially obstructing blood fiow to your extremities while exercising. This intermittent hypoxia generates an increase in anti-infiammatory myokines, the muscle version of cytokines, which in turn provides a whole host of beneficial hormonal responses. Aside from dramatically improving muscle tone and preventing sarcopenia (age-related muscle loss), KAATSU is also a wonderful tool for post-surgical rehabilitation, allowing you to regain physical function in a fraction of the time that you would normally anticipate. Importantly, it will also improve your metabolic fiexibility, so that you can seamlessly transition between burning fat and glucose as your primary fuel. It does this by increasing the number of glucose transporters, which absorb and lower your blood sugar in your cell membranes. As a result, your insulin level won't go up and you won't develop insulin resistance.

'Conventional' BFR uses static pressure fromelastic or inflatable bands, and while that can providebenefits when used correctly, KAATSU's cycling modeis far superior and provides biochemical benefits youcannot get from static pressure.

KAATSU is really a specific type of BFR therapy, as it uses a device that automatically infiates and defiates the cuffs you place around your extremities. "Conventional" BFR uses static pressure from elastic or infiatable bands, and while that can provide benefits when used correctly, KAATSU is far superior for several reasons, which we'll review here.

How KAATSU Builds Muscle

One of the reasons I'm so excited about KAATSU is it's ability to help build muscle mass and prevent sarcopenia. Sarcopenia is a progressive decline in muscle mass as you age, primarily due to the decrease in blood fiow supply to muscle stem cells which are called satellite cells. When your satellite cells don't get the nourishment they require, it becomes very dificult to build muscle. Once you are over 50, this is always working against you, even if you're doing hardcore resistance training. KAATSU solves this problem. It increases the blood supply to your satellite stem cells, which provides the necessary metabolic support needed to increase muscle protein synthesis and grow your muscles. KAATSU has the added benefit of allowing older people, like me, to engage in relatively aggressive exercise with almost no risk of injury because you're using very light weights, or if you're frail and/or elderly, none at all. As explained by Munatones:

"KAATSU cycle is basically a very clever biohack that will allow the muscles towork and allow the vascular tissue to become more elastic. You don't perceivethe pain of heavy lifting, but your vascular tissue and muscle fibers are beingworked out just as effectively, and you can do it for a longer period of time.Putting the KAATSU bands on your legs and walking down to the beach, walkingyour dog or just walking around the neighborhood, standing, cleaning yourwindows of your house, folding your clothes, banging out emails, all of thesethings can be done with the KAATSU bands on your arms or legs. You're gettingthe benefit of exercise.Beta endorphins are being produced; hormones and metabolites are beingproduced as you're doing simple things — and that is the way to get the olderpopulation in Japan, in the United States, around the world, to understand thatyou can stop sarcopenia, but you have to exercise. You don't have to run a 10K,you don't have to go down to Gold's Gym. Just put on the KAATSU bands andlive your life."

What Makes KAATSU so Different From Standard BFR

As explained by Munatones, the KAATSU device infiates and defiates according to preset algorithms, creating pressure and releasing pressure at set intervals. In the standard KAATSU device, it's 30 seconds of compression followed by five seconds of release, and each subsequent compression provides slightly more pressure. This incremental increase in pressure is really where the magic lies, and it's taken Sato more than 30 years of experimentation to find just the right "sweet spots" to trigger the greatest improvements.

"The second difference between standard BFR, as we know it in the physicaltherapy world, and KAATSU is the shape of the air bladder inside the band,"

Munatones says.

"With KAATSU, there is a narrow air bladder, and when itinfiates, it infiates in an oval shape.That oval shape means the pressure on the arterial fiow is minimal, but thepressure on the Venus fiow, from your limbs back to your torso, is much greater.That is the secret that Dr. Sato found. He wanted to engorge the vascular tissueof your limbs in blood. That's the catalyst for all of these biochemical changes."

This is why I no longer recommend using inexpensive BFR bands because conventional BFR will not produce benefits anywhere nearly as good. There's risk of injury there, and you can't get the same benefits. Unfortunately, many physical therapists still do not understand that BFR and KAATSU are really two different things. Munatones comments:

"The current state of the physical therapy market is more [focused on] musclegrowth. Muscle hypertrophy is the goal of BFR. Sato and his team ofcardiologists in Tokyo were also focused on muscle, but they were specificallyfocused on the vascular tissue. The key patent of Dr. Sato is the strengtheningof the vascular tissue.They knew that if they made our vascular tissue more elastic, basicallyantiaging, enabling our vascular tissue to be as elastic as it was when we werein our teens and our 20s, that would be a catalyst for hormonal production —everything from nitric oxide, vascular endothelial growth factor (VEGF), brainderived neurotropic factor (BDNF) and hundreds of other beneficial myokines.So, their focus was engorging the limb in blood to the point where your hands orfeet get pink, rosy, and in some cases, if you've been doing it long enough, adark red. We want the vascular tissue of our arms and legs to be very, verymuch engorged in blood …Engorged in blood, you feel that lactate, you feel that metabolic waste build upvery eficiently. That's the real focus. We focus on the vascular tissue and theresultant hormonal response as opposed to muscular strength."

Using KAATSU During Daily Activities Pays Dividends

Twice a week, Munatones provides free Q&A sessions during which you can ask questions about KAATSU (sign up for the KAATSU Q&A Zoom sessions here ). I've attended a few of those and was surprised to find that most people don't use KAATSU with any weight. They're just wearing the bands while doing chores or activities of daily living, and that's enough to see improvement.

"The non-athletes who start KAATSU doing average everyday things, once theysee their increased strength, once they start looking in the mirror and seeingsome definition in their arms, their core, their legs, they get motivationallyexcited to do more,"

Munatones says.

"It's really great to see this migration from a non-athlete, sedentary lifestyle, to amuch more active one, and that drive is coming from inside themselves.On the other side of the spectrum, you have the athletic population, that formercollege athlete, that former high school quarterback, or she might be a runner, arower, a basketball player. Now they're older and they know how to pushthemselves.They typically are the exact opposite. They start lifting with heavy weights andsay, 'God, I can't do much more than 10 minutes.' I go, 'Wait, wait, stop. Don't beso aggressive. Be gentle, slow down. I'd rather you use the KAATSU cycle for 45minutes than 10 minutes.'And they go, 'Oh, you mean I could still get the benefits of exercise, musclebuilding, stamina increase, if I slow down? If I don't use heavy weights? If I'mnot as intense?' And I go, 'Yes.'So these former athletes start coming down the intensity scale. So it's veryinteresting seeing the non-athletes sort of go up the intensity scale, and theformer athletes or athletes come down the intensity scale. They all sort of meetin this happy median in the middle."

KAATSU Eliminates Need for Recovery Days

An added boon is that you don't need recovery days. You can use KAATSU every day if you want. I used to do conventional strength training twice a week and KAATSU five days a week. Now, I no longer do conventional strength training at all and I am able to train every day with KAATSU without the need for recovery days. At most, I use 30% of my one rep max, with KAATSU, which allows me to work out longer and more frequently.

"We call it 'time under tension,'"

Munatones says.

"How much total time, let'ssay, in a one-week period do you have the bands infiated on your arms? To dolong-term sustained time under tension, you absolutely have to use the KAATSUcycle and you absolutely have to do it with non-intense, non-all-out vigorousmovement.Walking is great. Some people do Pilates, some people do yoga, some peopleactually just sit and watch Netfiix. We have a lot of people who are older, they'rein retail, or they are in law enforcement. Let's say they're on their feet all daylong and they come back home and they just want to be off their feet. They sitback on the couch, put the KAATSU bands on their legs and have a greatrecovery session."

KAATSU During All Phases of Exercise

Anyone who's familiar with exercise knows you start with a warmup, then you do the exercise itself, followed by a cool-down session. KAATSU can be beneficial during all of these phases. It is limb-specific, though. If you have the bands on your arms, it's not going to warm up or help recovery in your legs. So place the bands on the limbs you're working that day. Never use arm bands and leg bands simultaneously. It's either one or the other. Using it on arms and legs at the same time could cause a dangerous drop in blood pressure.

"Quite often, our elite athletes, our competitive athletes … use it before they getto the gym, before they get to the track, before they get to the pool, so whenthey start their traditional warmup, their vascular tissue is already ready to go.And so, if we talk to our track athlete, they'll say 'I feel light on my feet.' If we'retalking to a basketball player, volleyball player, they'll say 'I'm already jumpingnear my vertical leap max.'So they're using it before, they're using it during, and very importantly,afterwards — after they've taken a shower, they could be hydrating, they couldbe talking with their friends. Whatever body part they focused on in thatworkout, they're throwing the bands on, 30 seconds pressure on, five secondspressure off.During that five seconds, metabolic waste is being whooshed out and, therefore,they are ready for the next workout the next day. And that's why, if you're usingKAATSU seven days a week, there really is no need for a rest day."

On a side note, if you don't want to use weights or a cable resistance machine, both of which can get pricey, loop resistance bands are an inexpensive alternative that work great. It's like a giant rubber band and it comes in a variety of resistances, from 5 pounds of resistance all the way up to 300 pounds. With KAATSU, all you need are two or three of the smallest bands, and you can do virtually every type of exercise with these bands that you can do on a cable resistance machine, which, in my view, is one of the best pieces of strength training equipment out there.

The Mind-Muscle Connection

KAATSU also helps with the mind-muscle connection. Most bodybuilders will tell you that you have to focus on the muscle you're working. Just mindlessly moving through a range of motion with weight will not sufice. Sato was well aware of this as well. When you slow down the movement and focus on contracting the muscle, you'll feel the lactate build up. The same principle applies when rehabilitating from a stroke or an injury that's affecting one side of your body. In this case, place the KAATSU band on the injured side, say the right arm, and then perform a movement with that arm. For example, you could hold a toothbrush or hairbrush, and then go through the movement of brushing your teeth or hair while focusing on the muscle involved in the movement.

"Boy, when I saw the effect of that mind-muscle focus on able-bodied peopleand then people who were injured or disabled, it really opened my eyes to whatKAATSU can do for people,"

Munatones says. I'm really excited about KAATSU because, to me, it's the ideal form of exercise for the elderly and those who have been sedentary for a long time and will die prematurely if they don't get some type of exercise intervention. And again, while constant-pressure BFR bands can give you some benefits, it's the regular and consistent releasing of pressure that activates the anti-infiammatory myokines, which I exponentially lower when wearing static bands. When wearing the KAATSU bands for 45 minutes, you're cycling the pressure on and off twice per minute, so you're getting a lot of activations. With that, you're also getting a lot of hormonal cascades. With constant-pressure BFR, your muscles will grow, but over time they'll get spastic. I experienced this first-hand. So now, I never use constant tension. I always use cycle mode. As noted by Munatones:

"You use less weight, less resistance for more muscle, you do less intensity forbetter results. On the face of it, on the macro level, it doesn't make sense. But ifyou look at it at a micro level, what is actually happening within the body as youengorge limb in blood, KAATSU makes a whole lot of sense."

How Professional Athletes Use KAATSU

KAATSU is also a superior choice for athletes. I've already mentioned how they use it for warmups and cool downs. Many professional athletes also use KAATSU during practice, but with different protocols. Munatones explains:

"For example, if we're working with Olympic track athletes, they could be usingtheir bands while working on their starts, or that first hurdle on the hurdles.They typically will do a KAATSU cycle to warm up. If they're doing a veryspecific motion in the starting blocks, they'll use it in constant mode there, andthen release the bands.This is very important for athletes. We found that the human growth hormone,and most of the hormones that are released, are released about 12 to 15minutes after you take off the bands. So the maximal production of hormonesisn't when you have the bands on. There's a time delay. So what does thatmean?Now, when we share that information with a professional athlete, let's say anNBA player who's in the NBA dunk contest. Well, they'll KAATSU, ideally, 15minutes before they get on the court to do their dunk. They want to maximizetheir physicality when their hormones, their adrenaline, their beta endorphins, etcetera are fiowing. You want to perform at that point in time.So, we basically backdate; we go back and say, OK, let's say at 12 noon, youknow that your race is going to start, so let's finish the KAATSU session at11:45. That gives you enough time to put on your jersey, get ready, et cetera.Same thing in between periods, in between halves. We have everybody fromhigh schoolers, to college athletes, to pros, that are using the bands.This actually came from the Japanese pitchers who are using the bands inbetween innings. So it's a nine-inning game. Let's say they pitched six innings,they were recovering in between the first and second and third and fourthinning.We did a test with the equivalent of the NCAA baseball players in Japan, andfound, for those who use KAATSU exclusively, their pitch count and theirnumber of innings that they pitched increased over the whole season versus thecontrol group that did not use KAATSU during that season …At the Olympics, especially for 100-, 200- and 400-meter runners, you've gotthree races: the preliminary heats, the semi-final heats and the final heatswithin one 36-hour period. They're doing KAATSU in between the pre-lims andsemi-finals, and between the semi-finals and finals, simply to get that bodyback to 100% as quickly as possible.We also have professional-level arm wrestlers. In a tournament, you might haveas many as five, six or seven arm matches within a very short period of time. Assoon as they're finished, we want that metabolic waste whooshed out. So theythrow on the KAATSU bands on both arms and do some KAATSU [in betweenmatches."

KAATSU Is Ideal for People in Sedentary Professions

KAATSU is also being used by submariners, truck drivers and people in other sedentary professions.

"If you're a submariner, you're pretty confined for months on end. You're living ina small space, obviously there's some stress involved, just dog some simplebicep curls, hand clenches, tricep extensions and squats by your bunk,"

Munatones says.

"These are all innovative ways we use KAATSU. For long distance haulers, truckdrivers, this is an ideal way, in a confined space, that you can get a workout ifyou don't have the luxury of going to the gym.Or, you might be on a business trip. Maybe you're at a convention and you'vebeen on your feet all day. By the time you get back to your hotel room, you'rejust exhausted. Throw it on there.We're in 49 countries around the world. It's really a heartfelt labor of love thatwe're doing. We hear so many stories that are really touching, and that drives usevery single day. So if people are interested, they're very welcome to attend ourTuesday and Thursday one-hour sessions."

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