For who? Baby Boomers, retirees, competitive athletes, KAATSU Specialists
For what? Strength, stamina, functional movement, mobility, flexibility, recovery
When many people first hear about and become interested in KAATSU, they Google "KAATSU". The resultant Google search often lists many BFR (Blood Flow Restriction) products.
It is reasonable for most of these individuals to equate KAATSU with BFR and vice versa - because KAATSU is the original BFR.
"One way to get around this confusion is to input the Japanese symbols for KAATSU which is 加圧 - or for KAATSU Training which is 加圧トレーニング," advises Steven Munatones. "But inputting Japanese kanji characters on an English keyboard or on their smartphone is difficult or impossible for most people. So the best way to find out correct and non-misleading information about KAATSU is to go directly to the KAATSU website (www.kaatsu-global.com) or blog (www.kaatsublog.com) or any of its social media platforms like Facebook, Twitter or Instagram.
While the information is entirely in Japanese, others can review the original KAATSU website: www.kaatsu.com. Interested consumers can also copy-and-paste 加圧 - or 加圧トレーニング (Japanese for KAATSU Training) into YouTube and there will be plenty of videos and explanations about KAATSU."
Some of the questions that BFR users send into the KAATSU website include the following:
Q1. Owens Recovery Science sells PTS Personalized Tourniquet System for Blood Flow Restriction and talks about limb occlusion pressure. Why doesn't KAATSU go to full occlusion or restrict blood flow to the degree recommended by BFR advocates?
A1. The reason why KAATSU does not use full occlusion as a standard to perform BFR is because we do not believe it is necessary or optimally effective for most individuals. KAATSU equipment was designed based on 10 years of working with hundreds of cardiac rehabilitation patients per year (i.e., those who dealt with strokes, heart attacks, heart bypass surgery) at the University of Tokyo Hospital under the guidance of experienced cardiologists. This is where the KAATSU equipment design and protocols were tested and researched - under the guidance of cardiologists and Dr. Yoshiaki Sato using MRI, ultrasound, and blood analyses with mass spectrometers. After a decade of testing and research comparing everything from partial to full occlusion and various degrees of modifying venous flow, we believe KAATSU equipment and protocols are optimally designed; we based this on thousands of sessions with thousands of subjects (patients) in controlled setting where many parameters were accurately measured, compared and tested. The modification of venous flow does not needs to be extreme [see image above] in order to serve as the catalyst for significant hormonal secretion and metabolite production that is optimal for recovery, rehabilitation and athletic performance.
Q2. Other BFR products are FDA approved. Is KAATSU FDA approved?
A2. While some companies make claims or infers its own products are FDA approved, this is not true. KAATSU equipment has also not submitted documentation for FDA clearance, but neither have other BFR companies as of 2019. FDA registration of equipment is not the equivalent of FDA approval. FDA registration is a relatively easy process that does have the same medical, scientific or legal meaning as FDA clearance (or FDA approval in common vernacular).
Q3. Other BFR products have Doppler devices. Why doesn't KAATSU have a Doppler device?
A3. The Doppler devices that KAATSU used were used during its research phase, but since arterial flow is not occluded and venous flow is only slightly modified, there is absolutely no need for use of a Doppler device with KAATSU equipment. The only time that the Doppler was used was with KAATSU was during the research and testing phase of KAATSU where experienced technicians and cardiologists were studying the effects of KAATSU.
In contrast, it is logical that a Doppler device is necessary when there is full occlusion or anything near this degree of pressure with BFR devices. The use of Doppler is necessary in these cases with BFR - when the user is doing easy stretching or vigorous aerobic movements, is an active teenager or a sedentary Baby Boomer, or takes myriad medications.
Q4. What is the difference between arterial flow and venous flow?
A4. Arterial flow is the blood flow from the torso into the limbs (arm and legs) via arteries. Venous flow is the blood flow back to the torso from the limbs (arm and legs) via veins.
The heart is the driver of the circulatory system, pumping blood through rhythmic contraction and relaxation. The rate of blood flow out of the heart (often expressed in L/min) is known as the cardiac output.
Blood being pumped out of the heart first enters the aorta, the largest artery of the body.
It then proceeds to divide into smaller and smaller arteries, then into arterioles, and eventually capillaries, where oxygen transfer occurs. The capillaries connect to venules, and the blood then travels back through the network of veins to the right heart. The microcirculation (via the arterioles, capillaries, and venules) constitutes most of the area of the vascular system and is the site of the transfer of O2, glucose, and enzyme substrates into the cells. The venous system returns the de-oxygenated blood to the right heart where it is pumped into the lungs to become oxygenated and CO2 and other gaseous wastes exchanged and expelled during breathing. Blood then returns to the left side of the heart where it begins the process again.
Q5. Wider cuffs are always used with BFR products, but KAATSU uses flexible, elastic, pneumatic thin air bladders that is said to cause nerve damage. Is that true?
A5. That is an absolutely false claim. If the Department of Defense, the Department of Veteran Affairs, many universities and hospitals, and professional and Olympic athletes regularly use KAATSU, there is no possibility of approving KAATSU equipment or using KAATSU protocols if there were any risk of nerve damage - or other misleading claims made by BFR advocates.
KAATSU equipment is being used many people over the age of 50 - up to 104 years old.
The KAATSU equipment's primary feature is the Cycle mode which automatically shuts off after 4 minutes and allows for deflation every 30 seconds. These protocols are based on the decades of research and testing under the supervision of physicians of various disciplines and researchers with PhD who are under the obligation to report any untoward issue during their KAATSU research.
It should be noted that wide tourniquets and wide blood pressure cuffs are not properly used with the KAATSU equipment. KAATSU equipment is strictly limited to use with the patented, proprietary elastic, flexible pneumatic air bands. Using wide tourniquets with KAATSU equipment would be an intentional misuse of the KAATSU equipment. The pneumatic KAATSU bands serve to stimulate the optimal hormonal and metabolite response in the human body.
Q6. When should the KAATSU Cycle be used? When should the KAATSU Constnat mode be used?
A6. As with tactical athletes (i.e., soldiers and special operators in the US military), collegiate athletes and professional athletes, we recommend that KAATSU Cycles are repeatedly used both before and after every workout and competition as well as during every workout (as possible). If there is a problem with insomnia or travel that requires crossing time zones, then the KAATSU Cycle is also best used within an hour of bedtime.
The KAATSU Cycle can be used every day whether you are at your home, traveling on business, or heading to a competition. Athletes, corporate executives, special operators in the military, and aging Baby Boomers can use KAATSU effectively no matter where they are: in the office, at home or during travel.
Q7. Does KAATSU equipment change pressure with increased hypertrophy?
A7. KAATSU equipment changes pressure upon movement by the limb in real time, it changes with hypertrophy, and it changes slightly and gradually every 30 seconds depending on what parameter you set.
Q8. As KAATSU increases the elasticity of the vascular system, muscle tissue tends to build more easily and rapidly regardless of the individual. So how do you perform KAATSU without building excess muscle mass?
A8. Because KAATSU inventor Dr. Sato was a bodybuilder in his youth, building muscle was important to him. Many (or most?) current online references to KAATSU and BFR refer to muscle building, but this one outcome is just one of myriad possible outcomes. Because many young(er) men post information about BFR with the goal of building the muscles of their upper body (note: it is only occasionally about building lower body strength or girth), the Internet is overflowing with BFR experts talking about muscle building with BFR.
But muscle building is only one of the many goals of KAATSU. What can be seen online vis-a-vis KAATSU is very incomplete and only tells a small sliver of KAATSU outcomes. In 1973, Dr. Sato got injured and broke his ankle and he realized the additional - and in many ways - the most important aspects of KAATSU: rehabilitation and recovery.
Rapid rehabilitation from injuries to bones, muscles, ligaments and tendons, and recovery from surgeries and accidents are critical outcomes for many. The use of the KAATSU Cycle is essential to achieving these outcomes.
Also, KAATSU is ultimately more beneficial because one of its primary benefits is increasing vascular elasticity. For any aerobic athlete (e.g., skiers, runners, swimmers, rowers, triathletes), or weight-based athletes (e.g., wrestlers, boxers, MMA fighters, powerlifters, martial artists), this increased vascular elasticity helps in 3 primary ways:
1. Improvement in stamina because the delivery of arterial blood to the working muscles is improved and made more effective) and the return of venous flow from the working muscles enables a faster dissolution of lactic acid.
2. Improvement in power output (however that is measured in a variety of sports) because the working muscles are more efficient with increased vascular elasticity, especially at the capillary level.
3. Recovery from vigorous workouts enable increased performance in training over the long run.
For injured individuals, the hormonal and metabolite production and improved vascular elasticity are the goals of KAATSU - not muscle-building.
But even with a healthy, young athlete or an older woman recovering from surgery, there is no need for them to build muscle mass with KAATSU if they do not want. KAATSU users can stretch and do specific athletic or therapeutic movements with KAATSU in order to get better - without increasing mass.
They do not need to lift weights or do strength-building exercises with KAATSU - this WILL increase their muscle mass and tone. The KAATSU Cycle enables athletes or those recovering to become more powerful in their movements without the addition of adding muscle mass.
Q9. How do you properly size the KAATSU Air Bands?
A9. Below shows proper sizing of the KAATSU Air Bands for the arms and legs:
Small: circumference of upper arm is less than 11.5 inches (29 cm)
Medium: circumference of upper arm is between 11.5 -14 inches (29-35 cm)
Large: circumference of upper arm is between 14 - 16.5 inches (35-42 cm)
Extra Large: circumference of upper arm is between 16.5 - 21 inches (42-54 cm)
Small: circumference of upper leg less than 16 inches (40 cm)
Medium: circumference of upper leg is between 16 - 21 inches (40-53 cm)
Large: circumference of upper leg is between 21-26 inches (53-66 cm)
Extra Large: circumference of upper leg is between 26-32 inches (66-81 cm)
To measure your arms, measure the girth above your biceps just below the deltoids. To measure your legs, sit on the edge of a chair and measure the girth as high in the groin as possible.
Q10. What is the best way to use the KAATSU Cycle 2.0?
A10. You can use the KAATSU Cycle 2.0 unit for both the KAATSU Cycle mode and the KAATSU Constant mode. The KAATSU Cycle mode is an 8-stage series of 30 seconds of inflation of the KAATSU Air Bands followed by 5 seconds of deflation of the KAATSU Air Bands. At each stage, the inflated pressure is slightly higher (by 10 SKU). The duration of this 8-stage series of pressure-on and pressure-off is 4 minutes of total pressure.
The physiologic mechanism of the pressure-on and pressure-off is essential to KAATSU.
You can repeat the KAATSU Cycle of 8 stages as you wish up to 6 times.
There are 6 pre-set pressure levels on the KAATSU Cycle 2.0 [shown below]. The lowest pressures are selected by pressing the G (GROUP) button on the front face of the KAATSU Cycle 2.0 unit. The highest pressures are selected by pressing the P (PRO) button on the top side of the KAATSU Cycle 2.0 unit.
Within the G and P levels, there are also L (LOW), M (MEDIUM) and H (HIGH) pressure settings.
So the lowest possible pressure is GROUP LOW (represented by GL). It is followed by GROUP MEDIUM (represented by GM), GROUP HIGH (represented by GH), PRO LOW (represented by PL), PRO MEDIUM (represented by PM), and PRO HIGH (represented by PH).
As the KAATSU Cycle 2.0 unit is working, there are a series of letters and numbers shown on the LED display screen:
* GL1 means GROUP LOW setting on the 1st stage
* GM2 means GROUP MEDIUM setting on the 2nd stage
* GH3 means GROUP HIGH setting on the 3rd stage
* PL4 means PRO LOW setting on the 4th stage
* PM5 means PRO MEDIUM setting on the 5th stage
* PH6 means PRO HIGH setting on the 6th stage
* after the 8th stage has been completed, the unit automatically shuts off
You can repeat the same setting - or increase or decrease the pressure settings as you see fit.
The most highly recommended protocol is to start on GROUP LOW and then proceed gradually upwards on the pressure setting levels. Some users go all the way up to PRO HIGH level, but this level is not for everyone.
Any workout or movements (outside a pool) can be done in the KAATSU Cycle mode.
Q11. What if I would like to do the KAATSU Constant mode?
A11. If you would like to do the KAATSU Constant mode, then untether (i.e., disconnect) the translucent connector tubes after you have inflated the KAATSU Air Bands. You should limit your use of the KAATSU Constant mode to no more than 10 minutes.
Q12. How do I switch from the KAATSU Cycle mode to the KAATSU Constant mode - and vice versa?
A12. Put the unit in the neutral position (where neither the GROUP or PRO buttons are lit). Only the center button (ON/OFF button) should be lit. From this neutral position, press the LOW button on the top side of the unit for 3 seconds. The LED display should automatically change from CYCLE to TRAINING.
The TRAINING mode is pre-set to 200 SKU. You can change this pre-setting upwards or downwards as you see fit. If you press the GROUP button once, you will decrease the pre-set of 200 SKU by 10 SKU (to 190). If you press the GROUP button two times, you will decrease the pre-set of 200 SKU by 20 SKU (to 180). Each press decreases the SKU by 10.
Conversely, if you press the PRO button once, you will increase the pre-set of 200 SKU by 10 SKU (to 200). If you press the PRO button two times, you will increase the pre-set of 200 SKU by 20 SKU (to 220). Each press increases the SKU by 10.
The maximum SKU level is 400 SKU.
When you would like to switch back from the KAATSU Training mode to the KAATSU Cycle mode, press the LOW button again when the front face buttons are in the neutral position.
Q13. Can I do KAATSU more than twice per week?
A13. Yes, you can do the KAATSU Cycle mode up to twice daily. The more KAATSU Cycles you do, generally the faster you will rehabilitate and the greater your vascular elasticity will become.
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