Disclosed is a combined digital scorekeeper and vibration dampener device. The device is encased in a housing fabricated from a vibration dampening and/or shock absorption material. The device includes a plurality of string channels for attaching directly to the strings of a racket, and provides a miniature scoreboard that is operated by a simple mechanical or touch button system, so as not to distract the player's from the game. In an embodiment, the device is includes wireless technology to exchange scores and other data with other digital scorekeeper devices used by other players during a game, or via a network to a remote device to document the statistics from the match or provide data for other applications or sharing with others. In an embodiment, the digital scorekeeper includes one or more inertial sensors configured to detect and/or measure various data associated with the player's performance, which can be synced to video and used with training applications.

A screen stand to retrofit onto a stationary exercise machine using existing bolts on the stationary exercise machine. The screen stand has a hollow top mast slidably received within a hollow bottom mast. The bottom mast has a first anchor to attach to the pop pin of the stationary bicycle. There is a second anchor that attaches to the front stabilizer bar of the stationary bicycle.

To provide a mechanism making it possible to provide a more favorable service to an audience viewing the action of performer. An information processing apparatus including: a control unit that outputs content related to a performer, on the basis of detection information detected regarding an audience or the performer who performs an action to be viewed by the audience, in a display region that satisfies a criterion of visibility for the audience and a criterion of ease-of-viewability of an action of the performer by the audience, and does not satisfy a criterion of visibility for the performer.

A tennis training system may include a target mat including an intersection point and radial lines extending from the intersection point to visibly define sections. A target device may align with the target mat. The target device may include a body, a target assembly coupled to a first end of the body to define a target opening, and a base coupled to a second end of the body opposite the first end.

The invention discloses an electronically controlled adjustable dumbbell comprising a handle grip, a weight stack, a base, an end cover, an electronic control system and a weight stack locking structure, wherein the weight stack is located below the handle grip. The invention solves the existing problems of adjustable dumbbells as follows: firstly, the operation is so complicated and cumbersome that it is quite difficult to adjust the weight in one try, and the novice who is new to the adjustable dumbbells cannot quickly adjust the weight plate; secondly, visually the product looks too complicated since the number that needs to be adjusted is printed on the cylindrical surface, and half of the numbers on the handle surface are located below the handle grip, which is difficult to see by the user; thirdly, the lack of modernity and inadequate aesthetics hinders product sales and makes it difficult to make profit quickly.

A method for displaying archived exercise classes comprising displaying information about archived exercise classes that can be accessed by a first user via a computer network on a display screen at a first location, wherein the first user can select among a plurality of archived classes, outputting digital video and audio content comprising the selected archived class, detecting a performance parameter for the first user at a particular point in the selected class, displaying the performance parameter on the display screen, and displaying performance parameters from a second user at a second location on the display screen such that at least one of the performance parameters from the first user and at least one of the performance parameters from the second user at the same point in the class are presented for comparison.

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.

A method for displaying archived exercise classes comprising displaying information about archived exercise classes that can be accessed by a first user via a computer network on a display screen at a first location, wherein the first user can select among a plurality of archived classes, outputting digital video and audio content comprising the selected archived class, detecting a performance parameter for the first user at a particular point in the selected class, displaying the performance parameter on the display screen, and displaying performance parameters from a second user at a second location on the display screen such that at least one of the performance parameters from the first user and at least one of the performance parameters from the second user at the same point in the class are presented for comparison.

A seated leg extension exercise station and or a seated leg curl exercise station integrated into an exercise machine comprising an indirect alignment pivot mechanism to control the motion of the user engagement ankle pads such that the user's ankles and the machine's ankle pads are aligned to move in the same arcing path throughout the exercise motion and wherein all of the components of the indirect alignment pivot mechanism are located below the top surface of the seat pad during at least a portion of the exercise motion such that there is unobstructed access to the top surface of the seat pad when the user enters and exits the machine.

An exercise machine may include a stationary frame, an inclinable portion movably connected to the stationary frame, and an incline mechanism connected to the stationary frame. The incline mechanism may include a coiling mechanism, a coiling rod of the coiling mechanism, a flexible coiling link movable with a rotation of the coiling rod, and where the flexible coiling link is connected to the inclinable portion.