KAATSU VS. DELFI PORTABLE TOURNIQUET SYSTEM FOR BLOOD FLOW RESTRICTION
At KAATSU, we are passionate about transparency and empowering you with science-backed solutions to improve your strength, recovery, and longevity. As the pioneers of the Blood Flow Restriction (BFR) with a 60-year history of discovery, experimentation, research, and clinical refinement, we are proud of the unique, ground-breaking modality that we developed. We welcome direct comparisons to any BFR product on the market. We are confident that a deeper look at the science, safety, and versatility will show you why the original KAATSU the unparalleled leader in the field.
Quick Setup
KAATSU's setup is fast and convenient, allowing new users to quickly begin a session at home without complex pre-checks or the need to visit a physical therapy clinic. The process is simple for both practitioners at a clinic and individuals at home.
Delfi's setup requires a visit to a clinic and a physical therapist to separately calibrate Limb Occlusion Pressure for each limb before every session. Delfi's large equipment is not for home use and requires a clinician’s intervention to operate.
Personalization
KAATSU offers a range of customizable settings, including various pressures and cycle times. This allows for highly personalized protocols with convenient portability and complete freedom of movement for warm-ups, workouts, or recovery.
Delfi requires programmability within a narrow set of parameters due to its Limb Occlusion Pressure and primarily focuses on a program centered on 30-15-15-15 reps where the user remains tethered in place to the Delfi equipment.
Cycle Mode vs. Constant Pressure
KAATSU pioneered the patented, Cycle Mode technology that is gentle, effective, and safe. This uses repeated, brief, and progressive inflation and deflation of pneumatic bands to enhance circulation, accelerate recovery, and allow for both passive and isometric applications as well as vigorous exercises.
Delfi uses constant pressure, and lacks the gentle form of intermittent, progressive pressure used by KAATSU. This limits its range of applications for sustained bouts of exercise and vigorous training indoors or outdoors.
Non-Occlusion vs. Occlusion
KAATSU equipment and protocols are specifically designed to never impede or occlude arterial flow (from torso to limbs). This makes KAATSU inherently safer and eliminates the need for Limb Occlusion Pressure (LOP) calculations.
Delfi equipment includes modified blood pressure cuffs that are specifically designed to occlude arterial flow. The tourniquet based system requires a clinician to calculate and manage the patient’s LOP before and during every session.
Safety
KAATSU is safe precisely due to its non-occlusive bands are engineered to avoid compressing nerve bundles and arteries. The Cycle Mode starts at a low pressure and creates reperfusion every 30 seconds. This protocol was tested on over 12,000 patients, including over 2,000 cardiac-rehab patients, over a 10-year period by a team of cardiologists before launching in the US.
Delfi neither has the research history of KAATSU, that dates back to 1994, nor the clinical application history of KAATSU that dates back to 1973. Additionally, Delfi does not have non occlusive bands and or access to the patented Cycle Mode, the hallmarks of KAATSU’s safety profile.
Comfort and Feel
KAATSU bands are comfortable as described by most users. This enables comfortable, pain-free use even during intense dynamic movement. Due to the repeated compression and decompression phases, the sensation of cyclical reperfusion with KAATSU equipment leads to high compliance among users.
Delfi is described as being uncomfortable due to more rigid and wider tourniquets that impede arterial flow and compress pumped-up muscle. Low load exercise under these conditions causes discomfort. High rates of perceived exertion may be acceptable to competitive athletes, but much less so for non-athletes.
Systemic Benefits
By briefly and progressively modifying venous flow, KAATSU slowly and gradually engorges limbs in blood, leading to repeated shear stress within the vascular tissue. This creates a profound systemic effect, increasing vascular elasticity and sending signals to the brain to release nitric oxide and beneficial hormones and metabolites that are circulated throughout the body.
Delfi's arterial occlusion method primarily creates localized hypoxia (lack of oxygen) in the muscle distal to its tourniquets. This focus on local stress at constant pressures does not lead to repeated shear stress or confer the same systemic benefits as KAATSU.
Freedom of Movement
KAATSU's narrow, pneumatic bands do not limit range of motion like wider BFR tourniquets. Additionally, KAATSU's compressors are portable, attachable to a shirt, leggings, or the bands themselves in the most advanced designs. This design allows for unparalleled freedom of movement for nearly any activity.
The Delfi unit is large and remains tethered to the user during treatments. This setup requires the unit to be wheeled around on a rolling IV stand that limits mobility for all activities performed by Delfi users – including low-load hypertrophy training.
Passive Use
Due to its unique, automated Cycle Mode, KAATSU is the ideal tool for passive recovery or for those who are amputees, either temporarily or permanently immobile, in a wheelchair or with a cast, boot, or sling. KAATSU can be used when stationary, bedridden, and immobile to accelerate recovery and repair.
With Delfi’s higher effective pressures that serve to impede arterial flow as well as venous return, sedentary and passive use is more uncomfortable with the tourniquets impeding circulation.
Broad Use and Convenience
KAATSU's unparalleled safety, comfort, long proven clinical history usage, and versatility is designed to serve the entire human spectrum, from elite athletes and post-op rehab patients to amputees, paraplegics, and the elderly for home use.
Delfi is a tourniquet system that requires use by a licensed clinician. While it is broadly used by physical therapists and can be covered by medical insurance, it cannot be used at home or at one’s convenience, and cannot comfortably serve a wide spectrum of clinical populations.
STILL NOT CONVINCED? REACH OUT.
KAATSU's team has hundreds of peer-reviewed papers to share. This literature can answer many of your questions about KAATSU’s physiological mechanisms, potential applications, and safety.
