A human balance sensor for assessing the risk of the user falling includes a transparent glass plate, a latex sheet located on the top surface of the glass plate, a light source located so as to inject light into edge of the glass plate and a high resolution camera located below the glass plate so as to capture light diffused from the glass plate when pressure is applied thereto by the user's foot. Based on the principle of Frustrated Total Internal Reflection (FTIR), when user stands with his feet on the glass plate a condition of total internal reflection is eliminated at pressure locations due to the pressure from the feet, and diffused light passes from the bottom surface of the glass plate and forms a haptic image of the contact area of the feet which can be analyzed over time to determine the user's ability to balance, and hence their risk of a fall.

A device for motion sickness reduction, directional indication, and neural rehabilitation that provides three modes of operation. The device operates by providing haptic feedback using transducers that convert electrical signals to a tactile sensation such as pressure, vibration, electrical stimulation, temperature, or airflow. The transducers are located at different locations on the body of a user, and actively change their operation to indicate a direction of motion or rotation to the user through haptic (tactile) feedback. This tactile feedback can be used to reduce motion sickness, provide directional indication, and enhance neural rehabilitation.

A physical-ability estimation system (1) Includes: an analyzer (32) that estimates a gait feature of a user (U) from a moving image generated by capturing the user (U) walking; and an estimator (33) that estimates, based on the gait feature, respective assessment results on at least two assessment Items for assessing a physical ability of the user.

The present invention provides in part wearable devices for balance control. The wearable devices are capable of non-invasively monitoring and stimulating the wearer's vestibular system such that it produces postural responses. The wearable devices deliver low levels of electrical current to the vestibular system of a user to maintain balance. In one example, the wearable device is in the form of a pair of glasses.

A multi-dimensional rotation and translation apparatus includes a base frame, a yaw frame mounted on the base frame to rotate about a yaw axis, a pitch frame mounted on the yaw frame to rotate about a pitch axis, a roll frame mounted on the pitch frame to rotate about a roll axis, and an occupant support slidably mounted on the roll frame. The base frame may be mounted to translate along a translation frame. The yaw, pitch, and roll axes intersect at a selected location relative to an occupant of the occupant support. A yaw motor is engaged between the base and yaw frames; a pitch motor is engaged between the yaw and pitch frames; and a roll motor is engaged between the pitch and roll frames. The motors are selectively activated to cause relative rotation of the respective frames.

Methods, systems, and computer programs are presented for managing motion sickness of a user while the user is wearing a head-mounted device (HMD). One method includes an operation for monitoring the physical characteristics of the user while wearing the HMD that is presenting a virtual reality with multimedia content, where the physical characteristics including motions of the user. The multimedia content includes audio and video for presentation on a display of the HMD. Additionally, the method includes an operation for determining if the user is experiencing motion sickness based on the monitoring of the physical characteristics of the user while the virtual reality is being presented. When the user is experiencing motion sickness, supplemental sound is delivered to the user, where the supplemental sound is combined with sound from the multimedia content for delivery to the user, and the supplemental sound is defined to decrease the motion sickness experienced by the user.

A method and system for monitoring a user's intoxication including receiving a set of signals, derived from a set of samples collected from the user at a set of time points; providing a sobriety task to the user proximal to a time point of the set of time points; generating a performance dataset characterizing performance of the sobriety task by the user; receiving a supplementary dataset characterizing a demographic profile of the user and/or a physiological state of the user; determining a set of values of an intoxication metric, derived from the set of signals; generating a predicted temporal profile of the intoxication metric for the user based upon the set of values, the set of time points, and the supplementary dataset; generating an analysis of the user's sobriety based upon the performance dataset and the predicted temporal profile; and providing a notification to the user based upon the analysis.

A balance board fitness training device is provided. The fitness training device may include a deck having a top surface, a bottom surface, and opposing first and second side edges and opposing front and rear longitudinal edges together forming a perimeter of the deck; at least one wheel bracket structure positioned below the deck, the at least one wheel bracket structure rotatably supporting at least two wheels and configured so as to be movable relative to the deck about a pivot line at least partially extending between the opposing first and second side edges of the deck; and at least one resilient member connected to the at least one wheel bracket structure and the deck.

A balance board fitness training device is provided. The fitness training device may include a deck having a top surface, a bottom surface, and opposing first and second side edges and opposing front and rear longitudinal edges together forming a perimeter of the deck; at least one wheel bracket structure positioned below the deck, the at least one wheel bracket structure rotatably supporting at least two wheels and configured so as to be movable relative to the deck about a pivot line at least partially extending between the opposing first and second side edges of the deck; and at least one resilient damping member connected to the at least one wheel bracket structure and the deck.

A method and system for monitoring a user's intoxication including receiving a set of signals, derived from a set of samples collected from the user at a set of time points; providing a sobriety task to the user proximal to a time point of the set of time points; generating a performance dataset characterizing performance of the sobriety task by the user; receiving a supplementary dataset characterizing a demographic profile of the user and/or a physiological state of the user; determining a set of values of an intoxication metric, derived from the set of signals; generating a predicted temporal profile of the intoxication metric for the user based upon the set of values, the set of time points, and the supplementary dataset; generating an analysis of the user's sobriety based upon the performance dataset and the predicted temporal profile; and providing a notification to the user based upon the analysis.