Systems, devices, and methods for determining a user's lung capacity may employ a sound-producing breathing device and a recording device such as a microphone included in a user electronic device (e.g., smart phone or tablet computer). A user may inhale or exhale through the sound-producing breathing device, thereby producing a sound that is received by the microphone and communicated to a processor. The processor may analyze the received sound recording to determine one or more sound intensity values over, for example, the duration of the received sound and/or points in time within the sound recording. The sound intensity values may then be used to determine the user's lung capacity.

Described herein is a hyper-carbonic breath training apparatus comprising a breathing apparatus, a control system, a power unit, and one or more sensors. The breathing apparatus sealingly engages with one or more of a nose or a mouth of a user, to receive an inhalation airflow and an exhalation airflow of the user. The control system comprises one or more modulation units operated by one or more actuators and adapted to controllably reduce a breathing airflow volume of the user by modulating a resistance applied to the inhalation airflow and the exhalation airflow of the user, one or more air pressure sensors, one or more real-time physiological sensors, an input/output unit, a control unit, a memory, and a communication module. The control unit is adapted to operate in multiple modes, including, a first control mode, a second stress test mode, a third stress test mode, and a fourth control mode.

Various improvements are provided to breathing training, monitoring and/or assistance devices. A portable device is provided which optionally includes a gas canister, a feedback system for implementing pressure control, and a visual output for indicating adherence to a breathing exercise to the user. The pressure control may provide regulation of different pressures for inhalation and exhalation.

Various improvements are provided to breathing training, monitoring and/or assistance devices. A portable device is provided which optionally includes a gas canister, a feedback system for implementing pressure control, and a visual output for indicating adherence to a breathing exercise to the user. The pressure control may provide regulation of different pressures for inhalation and exhalation.

A breathing training, monitoring and/or assistance device is provided for home use. The device is for providing support and guidance during the training of breathing exercises. The device takes account of external data which relates to one or more of: the environmental conditions in which the device is being used; activity information in respect of the user; physiological sensor data about the user which is not related to breathing characteristics.

A uterine activity analysis apparatus, comprising a rendering device at least one controller coupled to the rendering device, and configured to acquire a uterine activity signal (UAS) corresponding to uterine activity of a patient; determine uterine activity information based upon the acquired UAS and render, on the rendering device, content based at least in part including UAS upon the determined uterine activity information. The controller may compare the determined uterine activity information with threshold uterine activity information and provide clinical decision support (CDS) based upon the decision. Furthermore, the controller may render a breathing guide to illustrate a preferred breathing pattern, when the start of a contraction is detected.

An exercise device, comprising: more than one resistance adjusting inserts wherein said resistance adjusting inserts are selected to change the overall resistance a user exercises against; a chamber wherein one or more of said resistance adjusting inserts are capable of being inserted within said chamber; and an inlet to said chamber wherein the one or more of said resistance adjusting inserts are movable within the chamber by breath of a user. A method for exercising comprising: using an exercise device comprising a chamber capable of holding at least one resistance adjusting insert where the chamber has an inlet; selecting at least one resistance adjusting inserts from more than one resistance adjusting inserts; and, moving the selected inserts in the chamber by air pressure generated by a user directed through an inlet into the chamber.

A lighting device is provided, a plurality of light sources are located within a housing of the lighting device. A sensor is also provided to determine an indication of the point of lowest potential energy and/or the point of highest kinetic energy. This sensor output is input to a controller that is configured to determine a change in the position or a movement of the point of lowest potential energy and/or the point of highest kinetic energy as the position of the lighting device changes based on the sensor output and to change a property of the light emitted by the plurality of light sources based on the change of position or a movement of the point of lowest potential energy and/or the point of highest kinetic energy.

A Pranayam Machine disclosed in present invention is a device that facilitates the performance of certain yogic breathing practices without the use of hands, it provides two mechanisms, mechanisms 1 and mechanism 2 in which parts that are common in both the mechanisms, are Servo motor (3), motor to fork coupling (4), Belts (6) and Ear plugs (7). Design of Forehead mounting (2) and Fork (5) differs depending on mechanism 1 and mechanism 2. This Forehead mounting (2) precisely fits on one's Head (1) through adjusting Belts (6). The major difference between Forehead mounting (2) in both the mechanisms, is that in mechanism 1, Servo motor (3) is mounted perpendicular to the surface and the Fork (5) is mounted perpendicular to the Servo motor (3) shaft axis, whereas in mechanism 2 Servo motor (3) is mounted parallel to the surface and the Fork (5) is mounted along the axis of the Servo motor (3).

An interactive respiratory relaxation auto-biofeedback device for relieving stress characterized by at least three continuously-intercommunicated modules: at least one bladder and at least one pressure sensor in connection with the at least one bladder; the at least one bladder configured for manual actuation by a user during exhalation; at least one programmable actuator for inflating and deflating the at least one bladder; an actuating module, comprising computerized feedbacking module (CFM) for programming and controlling the programmable actuator of the at least one bladder, and a self-reporting switch for user fixing of the breathing rate set by the actuating module.