A tennis ball retriever for retrieving a tennis ball on and about a tennis court and for controllably releasing the ball includes a front-end ball collector having two spaced-apart blades defining a ball collection space. The retriever includes a means for gripping and securing a ball positioned at the fore end, and one or more detents for retaining the collected ball in the collection space until a programmed or manually-directed release toward a target location such as a tennis baseline. The retriever includes a processor-controller for controlling and directing the retriever during a retrieval session. The retriever may be remote-controlled such as by voice commands.

Respiratory therapy apparatus includes an oscillating expiratory therapy device and pressure and flow sensors in the patient inlet connected to supply signals to a processor. The processor includes artificial intelligence software to correlate the output signals with prescribed values and control a feedback device that prompts the patient accordingly to adjust use of the device as necessary. The feedback device may be of a visual, audible or tangible kind. The processor may also automatically adjust a setting dial of the therapy device by means of an actuator.

Systems and methods for a small light weight unit that can be securely held and centered in the palm of the holder during physical activities, such as exercises, including aerobic exercises. The weight unit also includes features for securing the weight in the palm during the exercise to achieve a specific desired weight and intensity of workout.

The present invention provides a device comprising a fastening ring configured to mechanically attach the device to a lacrosse stick, a display screen having a rectangular shape, the display screen attached to the front part, a first button positioned on one side of the display screen, a second button positioned on one side of the display screen and a third button positioned on one or more sides of the display screen.

Posture training systems provide hands-free shoulder and back\spine alignment assistance for facilitating correct posture and alignment of the shoulders and spine of an athlete throughout swing or other physical rotational movements, and methods of their use. The posture training systems include vests that provide information during and throughout the rotational movement about spine-tilt angle relative to the ground, plane of the shoulders during torso rotation, perpendicularity between the spine and a line drawn between the shoulders, as well as departures from or maintenance of any of the initial parameters.

An event administration system is disclosed with a server connected to the internet to present a registration webpage to a remote event participant desiring to attend an event; a database connected to the server, the database stores information about the event participant and the event; an administrator module operated by an administrator of the system, the administrator can create and edit the event. The system allows registration register until the event starts and after the start of the event and can also provide a profile for participants that keeps track of their event statistics.

An exercise machine accessory is disclosed. In one embodiment, a resistance identifier is configured to identify resistance for an exercise machine associated with the exercise machine accessory, wherein the resistance identifier is coupled to the exercise machine. In one embodiment, a motion identifier is configured to identify exercise motion for a user of the exercise machine. In one embodiment, a communications module is configured to communicate with the user of the exercise machine, wherein the communications module is coupled to the resistance identifier and the motion identifier.

A system for data collection during a game includes a positioning system for determining various locations of a user during the game, a tag reader for reading a passive RFID tag held in close proximity to the tag reader, and a processor for correlating the location of the user with the time at which a tag is read to enable action locations for the game to be determined.

Audio systems and methods for obtaining location information are disclosed. A portable, wireless speaker that may include a beacon that a user may activate to remotely trigger a request for shot information, which may include location information of the user or speaker. The beacon may be wirelessly coupled to the speaker. The speaker may receive location information from a remote device, such as a GPS-enabled mobile phone. The shot information may be converted into an audio format for playback by the speaker. The speaker may pause the playback of the speaker to play out the shot information.

Methods and devices for use in shuttle drills. The exercise device includes a base having a plate and a central vertical member configured to receive blocks retrieved during a shuttle drill, and several blocks configured to be placed at varying distances from the base and to be picked up by a participant and stacked on the base. The method includes placing blocks of varying colors at varying distances from a base that has a plate and a central vertical member. A participant is instructed to run to the block closest to the base, pick up the block closest to the base, run back with the block to the base and stack the block around the central vertical member, and to repeat the running, picking up, and running back steps until there are no more blocks to be picked up and all blocks are stacked around the central vertical member.