A swing motion trainer used to simulate one or more sport swing movements includes a rod portion comprising a shaft with a grip. The swing motion trainer includes a resistance portion comprising an interchangeable mechanism at a distal end of the rod portion, the resistance portion includes an interchangeable mechanism at the distal end of the rod portion, wherein the interchangeable mechanism is configured to attach a removable resistance element to the distal end of the rod portion. The removable resistance element that is attachable to the distal end of the rod portion via the interchangeable mechanism. The removable resistance element provides a resistance to a swinging motion of the swing motion trainer.

A swing motion trainer used to simulate one or more sport swing movements includes a rod portion comprising a shaft with a grip. The swing motion trainer includes a resistance portion comprising an interchangeable mechanism at a distal end of the rod portion, the resistance portion includes an interchangeable mechanism at the distal end of the rod portion, wherein the interchangeable mechanism is configured to attach a removable resistance element to the distal end of the rod portion. The removable resistance element that is attachable to the distal end of the rod portion via the interchangeable mechanism. The removable resistance element provides a resistance to a swinging motion of the swing motion trainer.

The present disclosure relates to a shaft for athletic activities comprising, along at least a part of the length of the shaft: an internal wall (31) made of a first fiber-reinforced composite; and an external wall (30), fixed to the internal wall, and made of a second fiber-reinforced composite, wherein one or more cavities (32A, 32B, 32C) are present between the internal wall and the external wall.

A knob sleeve assembly for a ball bat extending along a longitudinal axis and having a tubular handle portion and a knob attached the handle portion. The knob sleeve assembly includes a plurality of annular bodies formed of a resilient material. Each of the bodies defines a central opening for receiving the handle portion of the bat. Each of the bodies has an annular body height within the range of 0.25 to 1.0 inch, and a maximum annular body outer diameter within the range of 1 to 3 inches. The plurality of annular bodies varies from one another according to at least one annular body characteristic. The knob sleeve characteristic is selected from the group consisting of annular body height, maximum annular body outer diameter, weight, color, material durometer value, annular body draft angle and combinations thereof.

A knob sleeve assembly for a ball bat extending along a longitudinal axis and having a tubular handle portion and a knob attached the handle portion. The knob sleeve assembly includes a plurality of annular bodies formed of a resilient material. Each of the bodies defines a central opening for receiving the handle portion of the bat. Each of the bodies has an annular body height within the range of 0.25 to 1.0 inch, and a maximum annular body outer diameter within the range of 1 to 3 inches. The plurality of annular bodies varies from one another according to at least one annular body characteristic. The knob sleeve characteristic is selected from the group consisting of annular body height, maximum annular body outer diameter, weight, color, material durometer value, annular body draft angle and combinations thereof.

Shooting accuracy in archery may be greatly improved by increasing the precision and repeatability in which an archer establishes “anchor points,” which are contact points between the archer and a drawn bow and arrow at a moment of launch. One such contact point is the hand gripping the bow grip. The invention provides a bow grip aid which enables an archer to repeatably grip the same location of the bow grip and maintain consistent grip firmness from one shot to the next. Reducing variances of this aspect of the archer's form benefits the archer by reducing variances between the archer's sighting process and determination of point of aim, and the impact point of the arrow on its target. The invention helps archers grip a bow more consistently so they can consistently place each arrow where they want it to go.

A golf swing playing aid device for use on a conventional golf club having a handle, an impact head and a shaft. The golf swing playing aid device may include a grip member having an outer portion and an inner portion. The outer portion may be adapted to be grasped by a hand of the user. The inner portion may be configured to slide along the golf club shaft. The playing aid device may include an electronic device including a rotational sensor adapted to detect a change in rotation relative to at least one axis, and a controller operably coupled to the rotational sensor. The controller may read the rotational sensor to determine the change in rotation relative to at least one axis. When the change in rotation is greater than a threshold amount, the controller may provide an indication to the user, thereby indicating over-rotation of the golf swing.

A lacrosse stick shaft comprising an elongated shaft member having a nonuniform outer profile comprising a plurality of non-corner face elements extending along a first axis. An inner passage is formed in the elongated shaft extending along the first axis. The outer profile further comprises two or more outer profile portions with different non-corner face elements extending along the first axis.

A lacrosse stick shaft comprising an elongated shaft member having a nonuniform outer profile comprising a plurality of non-corner face elements extending along a first axis. An inner passage is formed in the elongated shaft extending along the first axis. The outer profile further comprises two or more outer profile portions with different non-corner face elements extending along the first axis.

A golf club grip with reminder rib is provide that has a hollow main body having an inner diameter configured to fit to a shaft, wherein the hollow main body comprises a protruding feature that extends along a length of the hollow main body. The protruding feature protrudes from an outer surface of the hollow main body without requiring the shaft to be inserted in the hollow main body. By not requiring the golf grip to be on the shaft in order to cause a protrusion above the outer surface of the main body, the reminder rib formed by the protruding feature can be ensured to be about 0.040 inches, thus conforming to current rules of golf