An electromechanical device for rehabilitation includes pedals coupled to radially-adjustable couplings, an electric motor coupled to the pedals via the radially-adjustable couplings, and a control system including a processing device operatively coupled to the electric motor. The processing device configured to, responsive to a first trigger condition occurring, control the electric motor to operate in a passive mode by independently driving the radially-adjustable couplings rotationally coupled to the pedals. The processing device also configured to, responsive to a second trigger condition occurring, control the electric motor to operate in an active-assisted mode by measuring revolutions per minute of the radially-adjustable couplings, and cause the electric motor to drive the radially-adjustable couplings when the measured revolutions per minute satisfy a threshold condition, and responsive to a third trigger condition occurring, control the electric motor to operate in a resistive mode by providing resistance to rotation of the radially-adjustable couplings.

Provided is an artificial intelligence (AI) workout guide apparatus including a personal maximum weight (PMW) estimator configured to estimate PMW.sub.estimation of fitness equipment to be used by a user, based on an estimated muscular strength value calculated based on user data, and a PMW guider configured to provide PMW.sub.individual for the fitness equipment by complementing the PMW.sub.estimation with an individual objectification index of the user.

Provided is a weight exercise apparatus. The weight exercise apparatus includes an exercise main body in which movement is generated according to a user's weight exercise, a sensor module configured to detect movement of the exercise main body, and a processor configured to control a user interface (UI) unit to display a UI element indicating an exercise state of a user corresponding to the detected movement on a UI screen wherein the sensor module includes a first laser sensor configured to irradiate a first laser beam toward the weight plate or a component moving together with the weight plate to detect a moving distance of the weight plate when the weight plate moves and a second laser sensor configured to irradiate a second laser beam toward a component that does not move in spite of movement of the weight plate when the weight plate moves.

A baseball game system is capable of accurately determining a location of a ball at all times irrespective of changes in illuminance, the baseball game system including: a pitching unit pitching a ball toward a determination area including a strike zone; a photographing unit between the determination area and the pitching unit; and a location detector receiving a photographed image from the photographing unit, comparing the photographed image with a reference image, generating a corrected image by adjusting a luminance of the photographed image based on the comparison result and detecting a location of a pitched ball or a struck ball based on the corrected image.

A marking system for a baseball bat includes a bat including a barrel extending along a central longitudinal axis, the barrel defining a minimal vibration region. The marking system also includes a sheet having a first edge, a second edge positioned opposite the first edge, a third edge positioned between the first and the second edges, and a fourth edge positioned opposite the third edge, the first edge having a first curvature and the second edge having a second curvature, the sheet adapted to at least partially encircle a portion of the barrel of the bat. Additionally, a first positioning feature is disposed on the sheet, and a first alignment feature is disposed proximate the first edge of the sheet. Furthermore, the first positioning feature may be configured to be positioned adjacent to at least a portion of the minimal vibration region.

An information processing device includes: a displacement information acquisition unit that acquires displacement information corresponding to 3-dimensional displacement of a predetermined portion of an object that a user mounts in accordance with a body motion on the basis of positional information of the predetermined portion and an output control unit that performs control such that an output unit performs a predetermined output on the basis of the acquired displacement information. The object has, for example, a seatback on which a user can sit. The displacement information acquisition unit acquires a change in a position in at least one of front and rear directions, right and left directions, or upward and downward directions of a seatback.

A user interface for an interactive exercise system includes a display module held by a mechanical support system, with the display module able to display a video of a trainer. The trainer can be presented in full body view against a black background and a mirror element attached to at least partially cover the display module.

An adjustable weight lifting device (21) includes a tube (31), a pin (33) movably disposed inside the tube (31), the pin (33) comprising an external thread (35), and one or more driving knobs (51) extending radially inward relative to an inner wall of the tube (31) and engaging with the external thread. The external thread comprises at least one portion having a first helix angle and at least one portion having a second helix angle, the second helix angle being smaller than the first helix angle.

This invention is an inexpensive, easy-to-use, and easy-to-manufacture device that can be placed on the edge of a pool so that a swimmer can use it to count laps without significantly disrupting the swimming. The invention is lightweight and portable so that one person can carry it around, place it on the pool before swimming laps, and remove it afterwards.

Stationary exercise equipment for physical training, more particularly an exercise bike, comprising a frame with a movement unit which either is to be moved by the exerciser or is itself driven and interacts with the exerciser, one or more sensors, assigned to the movement unit and/or the exerciser, for capturing measured values, and a computer apparatus for establishing one or more items of measurement-value-related information, which are output on a frame-side display apparatus, letterized in that provision is made for a first display apparatus, which is directed at the exerciser for displaying one or more items of information, and in that provision is made for a second display apparatus, which is directed at the opposite side for outputting at least one item of information.