A length adjustable golf club includes a club head attached to a shaft at a lower end. A length adjusting kit includes a shaft insert that attaches to the shaft at an upper end. The shaft insert includes a coupling port that accepts one of an extension block or a grip adapter. To provide length adjustments of the overall club length, one or more extension blocks may attached between the shaft insert and the grip adapter. A grip assembly having a reinforcing sleeve connects to the grip adapter and extends over the shaft and any extension blocks. The grip assembly couples to the shaft through a grip adapter and grip coupling. The grip adapter and grip coupling are axially moveable prior to securement with a retaining fastener. The grip coupling may be rotationally constrained or rotationally adjustable relative to the grip adapter.

An adjustable sports paddle including a handle that extends to a neck portion and a substantially ovular frame. The frame supports first and second striking surfaces, which are sandwiched about an inflatable bladder. A conduit extends from the bladder to the handle through the neck, and the handle further includes a pressurizing mechanism for increasing an air pressure in the bladder via the conduit. In a preferred embodiment, the paddle can also include an adjustable handle having multiple lengths.

An adjustable sports paddle including a handle that extends to a neck portion and a substantially ovular frame. The frame supports first and second striking surfaces, which are sandwiched about an inflatable bladder. A conduit extends from the bladder to the handle through the neck, and the handle further includes a pressurizing mechanism for increasing an air pressure in the bladder via the conduit. In a preferred embodiment, the paddle can also include an adjustable handle having multiple lengths.

A sport apparatus comprising a shaft, wherein the shaft comprises a notch fitting and a sensor housing. The sensor housing comprises an alignment rib fitting, printed circuit board, rechargeable battery, one or more motion sensors, a transceiver, an inductive charging coil, among other necessary elements for the sport apparatus as described herein. A portion of the sensor housing resides within the shaft, wherein the alignment rib of the sensor housing mates with a notch or other locking mechanism of the shaft.

A rotational assistive device includes a first end portion configured for operable connection with a user, and a second end portion configured for operable connection with an implement utilized via a swinging motion. A main body portion extends between the first end portion and the second end portion. The main body portion includes a plurality of telescoping leg portions, such that when the implement and rotational assistive device are swung, the main body portion moves between a closed position having a closed length and an extended position having an extended length greater than the closed length.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

A game stick for use with a golf ball, the game stick including a shaft having a proximal end, a distal end, and a longitudinal axis extending between the proximal end and the distal end and a head coupled to the distal end of the shaft. The head has a first sidewall, a second sidewall, and a bottom wall defining a channel extending radially from the longitudinal axis, the channel configured to receive the golf ball. The game stick further includes surface disposed on an exterior surface of the head, the striking surface being comprised of a different material than the head.

A game stick for use with a golf ball, the game stick including a shaft having a proximal end, a distal end, and a longitudinal axis extending between the proximal end and the distal end and a head coupled to the distal end of the shaft. The head has a first sidewall, a second sidewall, and a bottom wall defining a channel extending radially from the longitudinal axis, the channel configured to receive the golf ball. The game stick further includes surface disposed on an exterior surface of the head, the striking surface being comprised of a different material than the head.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.