Disclosed is a water flow control device for swimming training that includes a swimming training device and a main water inlet pipe and a main water outlet pipe. The swimming training device includes at least a swimming pump. The main water inlet pipe and the main water outlet pipe are connected with the swimming pump. The water inlet of the main water inlet pipe is communicated with a swimming pool and a water outlet of the main water outlet pipe is connected with a jet nozzle. A filter device includes at least a filter pump, a filter sterilization device. A filter water inlet pipe and a filter water outlet pipe are connected with the filter pump. The filter water inlet pipe is communicated with the swimming pool through the filter sterilization device and the filter water outlet pipe communicated with the main water inlet pipe.

A weight element for slideable communication along first and second ribs of a weight path of a golf club head includes a first weight portion, a second weight portion, and a fastener extending through the first weight portion and at least partially into the second weight portion. The first and second weight portions are configured so that the first and second ribs may be interposed therebetween. The fastener is configured to independently rotate relative to the first and second weight portions, the rotation of the fastener causing the first and second weight portions to move toward each other in a manner capable of compressing contact surfaces of the first and second weight portions against the first and second ribs. And the contact surface of the first weight portion comprises an angular contour including surface portions angled to form at least one non-zero degree vertex.

A wood-type golf club head includes a striking wall, a top portion, and a bottom portion comprising a club head wall portion and first and second ribs projecting from the wall portion. The club head also includes a weight element translatable along a weight path and that comprises a first weight portion, a second weight portion, and a fastener, the first and second ribs each being interposed between the first weight portion and the second weight portion such that the first weight portion is located proximate the club head wall portion and the second weight portion is located distal the club head wall portion. The second weight portion further comprises a contact surface having an angular contour including surface portions angled to form at least one non-zero degree vertex, the surface portions being complementary to, and shaped to mate with, the bottom portion of the club head.

An exercise motion tracking assembly, an exercise motion tracking system, and a method of electronically tracking exercise motion are disclosed. In one embodiment, the exercise motion tracking assembly can comprise a base unit comprising a plurality of trigger columns and a tracker comprising a plurality of column ports, a plurality of switching components, and a plurality of sensors. At least one of the plurality of sensors can be activated when the tracker is detachably coupled to the base unit, causing at least one of the plurality of trigger columns to extend through at least one of the plurality of column ports and actuate at least one of the plurality of switching components.

Systems and methods providing statistical analytics of golf performance for coaching including text, tabular, graphic, and image-based outputs that include trends information for the golfer, all based upon actual golf play on course situations, wherein the golfer inputs shot data during play, without interrupting the flow of the game, and uploads the shot data for analytics and review online, and wherein all information related to a given user are reviewable by an authorized coach user through a web-based coach access account. The system is further operable to provide the coach user rights for providing corrective or instructive feedback to the user, including visual recommendations such as modified target areas.

An exercise machine platform that allows for emulation of the natural movements of real-world modes of transportation in stationary exercise machines such as bicycles, rowing machines, elliptical machines, and treadmills. The exercise machine platform comprises a base with one or more powered lifting mechanisms, a frame supported by the lifting mechanisms of the base which allows for roll, pitch, and/or vertical displacement movements, and a rocker plate supported by the frame that allows for additional independent movement from the roll, pitch, and/or vertical displacement movements of the frame. A dampening system controls the additional independent movement between the frame and rocker plate.

Swimming goggles are developed to allow a swimmer to see the end of the pool without moving their head while swimming in backstroke. Using a light reflector, a swimmer can see through a backstroke viewing window, allowing them to see along the direction that they are moving when swimming backstroke. Using a motion sensor and electric control circuits, a swimming goggle can provide optimum views for the swimmer wearing the swimming goggle. Using a sound speaker, a swimming goggle can play music and provide voice reports to the swimmer. Flow meters and inclinometers can be used provide measurements with better accuracy. The electronic controller for a swimming goggle can either be embedded as part of a swimming goggle, or can be detachable to support more than one swimming goggle. Besides swimming goggles, the electronic devices also can be attached onto athletic headgears such as eye goggles, sweat bands, hats, or helmets.

Embodiments of methods, apparatus, and systems to custom fit golf clubs are generally described herein. Other embodiments may be described and claimed.

Systems and methods are provided for tracking, collecting, or analyzing user data for gyms. For example, the system can include a mobile device associated with a user and a tracking device attached to an exercise device. The tracking device can be configured to detect when the mobile device or the user enters within a proximity value of the tracking device and notify the mobile device with a notification signal and identification information of the exercise device. The mobile device can be configured to receive the notification signal from the tracking device, detect a received signal strength (RSS) of the notification signal, and determine whether the RSS is above or at a pre-determined threshold. When the RSS is above or at the pre-determined threshold, the mobile device records the identification information of the exercise device. When the RSS is below the pre-determined threshold, the mobile device ignores the notification signal.

A computer program is disclosed for reconfiguring a property-adjustable golf club. The program receives data input corresponding to a current configuration of an adjustable feature of the golf club, and data input corresponding to trajectory adjustment information. Based on the data input, reconfiguration information is generated, and outputted, that corresponds to one of a plurality of configurations of the adjustable feature of the golf club.