An exercise assembly structured to perform different rowing routines characterized different rowing motions. A resistance device is movable within a chamber and is cooperatively structured therewith to resist such movement. A drive assembly includes two drive sections each independently connected in driving relation to said resistance device. A connector structure includes two connector members each attached to a handle and connected in driving relation to a different one of said drive sections. The handle is selectively movable through the plurality of different rowing motions, at least one of which results in the two drive sections concurrently driving the resistance member and being concurrently driven by the two connector members. At least one other rowing motion of the handle is defined by each drive section alternately driving the resistance member and being alternately driven by interconnected ones of said connector members.

A therapy and physical training system, comprising one or more movement sensors each of which positioned on a corresponding body part of a user, a first computer on a processor of which an application is running and a head mounted housing which is configured with a display on which images generated by the first computer are visible to the user. The application is configured to receive inputs from each of the sensors or from a second computer in data communication with each of the sensors, the application also configured to generate, in response to a real-time disposition of each of the corresponding body parts during performance of an exercise related body movement, a virtual reality object viewable by the user, the object being indicative of an additional body movement to be made by the user in order to conform with a user-specific exercise program.

A method for determining a direction of a spin axis of a rotating apparatus which includes an XYZ-magnetic field sensor. The method includes determining a global direction of a magnetic field; rotating the rotating apparatus around the spin axis, measuring at least one magnetic field value as a function of time with the XYZ-magnetic field sensor when the rotating apparatus is rotating about the spin axis, computing a magnetic field component of the magnetic field in a direction of a local body co-ordinate of the spin axis of the rotating apparatus from the measured at least one magnetic field value and determining a direction of the spin axis using the computed magnetic field component of the magnetic field and the determined global direction of the magnetic field.

Sensors in a golf teeing booth are used to: detect that a ball has be driven and estimate a predicted ball landing point on a golf practice range. A mobile unmanned golf ball retrieval vehicle, sometimes referred to as a gofer, determines a precise ball location on the field and reports the results to a control system. The control system updates the golfer's score based on the determined precise ball location.

A method for determining a direction of a spin axis of a rotating apparatus which includes an XYZ-magnetic field sensor. The method includes determining a global direction of a magnetic field; rotating the rotating apparatus around the spin axis, measuring at least one magnetic field value as a function of time with the XYZ-magnetic field sensor when the rotating apparatus is rotating about the spin axis, computing a magnetic field component of the magnetic field in a direction of a local body co-ordinate of the spin axis of the rotating apparatus from the measured at least one magnetic field value and determining a direction of the spin axis using the computed magnetic field component of the magnetic field and the determined global direction of the magnetic field.

A smart ball (100) comprising: an inner sphere portion (12) consisting of a cork like material and an outer sphere (19) that ensconces said inner sphere, said inner sphere further comprising: a cylindrical cavity (14), located substantially at the core of said ball, said cavity formed by drilling into said cork from an operative top side; a sensor assembly (16) placed in the centre of said cylindrical cavity along a reference plane defined by a locus of points wherein said points being collinear points running from a first end of said seam (18) to a second end of said seam, thereby ensuring that orthogonal measurements of said sensor assembly being aligned with orthogonal axes of said ball; and a charging port on said seam, said charging port connected to a battery placed in said cylindrical cavity and said battery connected to said sensor assembly.

A system includes a minimally intrusive display system (MIDS) configured to be disposed on an eyewear. The MIDS includes a display system and a sensor system configured to provide for a sensor data. The MIDS further includes a processor configured to process the sensor data to derive a physiological measure. The processor is further configured to display, via the display system, the physiological measure, wherein the display system is disposed in the eyewear so that the physiological measure is only viewed when a user of the eyewear turns the user's pupil towards the display system at angle from a forward direction.

A weight sled for fitness training that uses a plurality of separately-adjustable resistance mechanisms to allow for adjustment of overall resistance, bias correction and directional control, and wheel skid or slippage control, by means of differential adjustment of the resistance of the plurality of resistance mechanisms. Differential adjustment of the resistance mechanisms can be used to manually or automatically offset a directional bias in the sled, ground surface, or the athlete's abilities to keep the sled moving in a linear motion, and to prevent wheel skid on surfaces with differing friction coefficients.

A resistance force is controlled such that a user's effort against the resistance force results in a first isokinetic seed movement, wherein the user is an exercise machine user using an exercise machine. The resistance force required to effect the first isokinetic seed movement is associated with a predetermined force-velocity profile. A strength determination of the user is made based at least in part on the required resistance force and the associated predetermined force-velocity profile.

An apparatus, system and method for exercise tracking that comprises at least one mother unit, equipment tag, base unit, and RF user tag. The mother unit comprises equipment tag reader and sensor and is joined to an equipment in a gym. The tag is placed on the equipment and in communication with the mother unit. The base unit comprises a RFID reader. A plurality of mother units is in communication with the base unit. The RF and GPS enabled user tag is provided and joined to user in gym and in communication with the mother unit. The apparatus is a substantially hands-free. User profile and user exercise data is captured. A computer system in communication with the base unit is provided. Data captured by the mother unit is communicated to and analyzed by the computer system, and feedback communicated to the mother unit is communicated to user.