The present invention provides a differential pressure body suit with external support against body suit migration. In its preferred embodiment, such body suit may comprise a close-fitting, multi-layered suit sealed against a mammal's skin to contain the differential pressure, or a looser-fitting suit that bends at the mammal's joints with minimal force. External support means include either fixed or movable mechanical supports attached to the body suit, extraordinary air pressure levels for making the body suit rigid, or exoskeletons attached to the body suit, or a counter-force suspension cable adjustment system. A cyclic control system can turn the differential pressure condition within the body suit on and off on a selective basis to accommodate the movement of the legs of the mammal. This differential pressure body suit provides a portable and convenient system for, e.g., rehabilitating a skeletal joint injury or training the mammal for injury prevention or athletic performance or fat burning. The pressurization reduces the weight of the body to greater or lesser extents, and offloads the weight to the ground through the external support means.

A system is provided by applying pressure to a portion of a body of an individual in a chamber having an aperture along a vertical axis for receiving the portion of the body of the individual. A pressure sensor is coupled to the chamber for measuring a pressure inside the chamber. A negative feedback control system, calibrates, adjusts and maintains the pressure inside the chamber.

To provide a training apparatus for effective and safe performance of KAATSU training. A training apparatus is made up of a tight fitting band 100, a main device 200, a measuring segment 300, and a control segment 400. The tight fitting band 100 is wrapped around a predetermined region of a limb. The tight fitting band 100 has an air-tight inflatable bag. The compression force applied to the limb can be varied by supplying the air to and removing the air from the inflatable bag. The main device 200 controls the supply and removal of the air into and from the inflatable bag. The measuring segment 300 is attached to the limb around which the tight fitting band 100 is wrapped to measure the magnitude of a pulse wave. The control segment 400 determines, in preprocessing performed before the KAATSU training, the pulse wave component at a time point at which the magnitude of the pulse wave reaches the maximum, and chooses, as an appropriate gas pressure, the pressure within the inflatable bag that is produced at a time point at which such a pulse wave is generated that is obtained by means of multiplying the pulse wave component at a time point at which the magnitude of the pulse wave reaches the maximum with a numeral equal to or larger than 0.2 but smaller than 1.

The invention provides a hydrogen-oxygen mixed gas inhalation device for improving the health condition of a user. The hydrogen-oxygen mixed gas inhalation device comprises a hydrogen supply unit, an oxygen supply unit, an air supply unit, a mixer connected to the hydrogen supply unit, the oxygen supply unit, and the air supply unit, a first compressor connected to the mixer, a flow controller connected to the first compressor, and a pressure vessel connected to the flow controller. The pressure vessel maintains an internal pressure higher than 1 atmosphere, and the user inhales the hydrogen-oxygen mixed gas with a necessary and sufficient flow rate inside the pressure vessel.

A blood flow restriction garment controller, a blood flow restriction garment system, a method of controlling a blood flow restriction garment, a method of controlling an electronic device and computer software. The blood flow restriction garment controller comprising: a pump arranged to increase a pressure in an air bladder of a blood flow restriction garment; an air pressure sensor arranged to measure a pressure of the air bladder and provide a signal indicative of the measured pressure; a valve arranged to control the pressure of the air bladder, wherein the valve has at least two operating states, wherein the operating states comprise an open state and a closed state; at least one or more of an inertial measurement unit, an accelerometer, a gyroscope, arranged to determine movement of the blood flow restriction garment controller and provide a signal indicative of the determined movement; processing means for providing a signal to control the valve by selecting one of the at least two operating states, wherein the signal to control the valve is based on at least one of the signal indicative of the measured pressure and the signal indicative of the determined movement.

A sportswear garment comprising means for adjustably compressing at least one major vein in a user's limb such that blood flow through the at least one major vein is restricted.

Described herein are various embodiments of differential air pressure systems and methods of using such systems. The differential air pressure system may comprise a chamber configured to receive a portion of a user's lower body and to create an air pressure differential upon the user's body. The differential air pressure system may further comprise a user seal that seal the pressure chamber to the user's body. The height of the user seal may be adjusted to accommodate users with various body heights.

A Differential Air Pressure (DAP) disguised as an amusement system is provided for motivating user participation in exercise session activities of the DAP system. The DAP system has a support platform with a treadmill integrated therein, and includes an inflatable enclosure secured at a base end to the support platform that extends upward therefrom in an inflated state to a vertical height for the exercise session, which has shape features corresponding with the amusement system disguise. A restraint securely connected to the support platform at a base portion and connected to a top opening defined through an upper region of the inflatable enclosure restrains the top opening at a vertical height in an inflated state. A control computer controls the DAP system to perform operations corresponding with the disguised appearance and further include operations for at least partially unweighting the user for the exercise session.

A method is provided of evaluating comparative equivalence for a user of a MicroGravity system between an unsupported exercise session and an unweighted MicroGravity exercise session. The method includes receiving, for a comparative group of the unweighted and unsupported sessions, an unweighting for each and a 1.sup.st exercise parameter for a base selection of the group having a first run speed and a first incline. The method includes evaluating a session output for the comparative group based on the first run speed and incline and an unweighting of the base selection, which includes determining, for a comparison selection of the comparative group and the session output, based on an unweighting of the comparison selection, a 2.sup.nd exercise parameter having a second run speed and a second incline. The method further includes providing to the user session output and comparative information including the second speed and the second incline.