In one embodiment, an adjustable surface stiffness treadmill includes a treadmill unit, a scissor mechanism that supports the treadmill unit, a stiffness adjustment mechanism configured to adjust a vertical stiffness of the treadmill unit, and an input link having a first end and a second end, the first end being connected to the scissor mechanism and the second end being connected to the stiffness adjustment mechanism, wherein the input link translates downward vertical forces imposed upon the treadmill unit into horizontal forces imposed upon the stiffness adjustment mechanism.

A system and method for targeted neurological therapy using a primary task and a plurality of associative activities, wherein the associative activities provide social engagement as a therapeutic element. The system and method receive various biometric data associated with an individual performing a multiple-task stimulation therapy regimen, computes a performance score for the individual, and makes adjustments to the therapy regimen based on the performance score. In some implementations, the system is supported by one or more machine learning predictive models configured to generate therapy regimen adjustment recommendations.

A system and method for evaluation, detection, conditioning, and treatment of neurological functioning and conditions which uses data obtained while a person is engaged in simultaneously in a range of primary physical tasks combined with defined types of associative activity, such as listening, reading, speaking, mathematics, logic puzzles, navigation of a virtual environment, recall of past stimuli, etc. The data from the physical and associative activities are combined to generate a composite functioning score visualization indicating the relative functioning of areas aspects of neurological functioning; including those in which deficiencies may be present, which are early indicators of possible neurological conditions. Through algorithmic recommendations combined with expert and user input, a conditioning regimen targeting neurological aspects of interest paired with periodic testing allows the user to track their progress in these areas over time.

An apparatus for natural torso and limbs tracking and feedback for electronic interaction with fall safety support. The apparatus comprises a body harness worn on the body of a user, a support structure designed to bear the weight of the user in the event of a stumble, trip, or fall, and a plurality of tethers attached at one end to the harness and at the other end to the support structure. One or more sensors are integrated into the system to measure aspects of the user's movement and used as input to control a computer system. In the event of stumble, trip, or fall, all of, or a portion of, the user's body weight is borne by the tethers as a safety mechanism to prevent injury. The system is designed to be used with virtual reality systems wherein the user's vision is blocked or obscured by a virtual reality visor.

The foldable portable treadmill (10) of the present invention includes left and right treadmill sections (12, 14), each having support rollers (20, 22) and an endless belt (24, 26) with bumps (36, 38) on the outer surface thereof. An electric motor (32) drives the belts. A hinge (40, 42) connects the side edges (16, 18) of the treadmill sections together so that they can be folded over each other for storage or transport. Wheels or rollers (84, 86) carried by at least one of the sections allow the treadmill (10) to be rolled across a floor when the sections are folded together. Telescoping handles (66, 68) are movable between an operative position where they extend upwardly from the treadmill sections when they are opened in order to be grasped by a person using the treadmill and an inoperative position where they can be used for transporting the treadmill when it is closed. When the treadmill sections are open for use, the spacing between them can be adjusted.

A system and method for range of motion analysis while exercising, including methods for constructing user movement profiles based on repeated and typical user movements during exercises as are typical for an adult of a user's age, weight, etc., and capable of warning a user of unhealthy, unsafe, or anomalous movement patterns during exercise, using a balance trainer, range of motion analyzer, and a plurality of sensors in conjunction with an exercise device, in an effort to reduce health risks to users during exercise with an enhanced or mixed reality exercise device.

A force measurement system is disclosed herein. The force measurement system includes a force measurement assembly configured to receive a subject thereon, and one or more data processing devices operatively coupled to the force measurement assembly. In one or more embodiments, the one or more data processing devices are configured to generate a first image portion comprising a primary screen image for viewing by the subject and display the first image portion using the at least one visual display device, and the one or more data processing devices are further configured to generate a second image portion comprising a virtual screen surround and display the second image portion using the at least one visual display device. The virtual screen surround of the second image portion is configured to at least partially circumscribe three sides of a torso of the subject and to substantially encompass a peripheral vision of the subject.

An apparatus and method for physical therapy includes a base structure, a roller table positioned on the base structure including a plurality of free motion rollers, at least one motor connected to the base structure, a plurality of powered rollers located within the base structure being in removable contact with the plurality of free motion rollers and connected to the at least one motor, a lifting mechanism located within the base structure and connected to the at least one motor and being configured to raise and lower the roller table, a load cell in communication with the apparatus being configured to measure and record a patient's response to the transition of the roller table, and a programmable logic controller in communication with the at least one motor and the load cell being configured to control the transition of the apparatus between the first mode and the second mode.

A system and method for using a body joystick to interact with a virtual or mixed-reality machines or software applications that uses a support arm to hold a device for attaching the body joystick to a user's body, a sensor for detecting movement, and a tether and actuator for providing feedback to the user about interactions with the virtual or mixed-reality machines or software applications.

Systems and methods are provided for enabling a split belt treadmill having two belts to self-pace. A feedback process estimates a first current step speed for a user on each belt by measuring stride length and step duration. A feed-forward process estimates a second current step speed for the user on each belt by measuring three forces and three moment components associated with foot contact with the belt. A command speed for each belt is produced by combining the first and second current step speeds with a Kalman filter. A belt speed associated with each belt is adjusted based upon the command speed.