Abstract: A swing practice apparatus has a base portion that makes a contact on a ground, a standing pole that extends upward vertically from the base portion, a horizontal arm that is elongated between a first base side and a third base side and is arranged to be perpendicular to the standing pole, a hinged arm that is rotatable at one end at a middle of the horizontal arm, a trajectory pipe attached to the other end of the hinged arm, a trajectory wire connected between the trajectory pipe and a bracing structure, and a ball suspended to a suspension ring which is slidable along the trajectory wire and the trajectory pipe.

Abstract: Embodiments of the invention provide a mat upon which can be placed an electronic device. A cable is routed through a channel that is at least partially inside the mat. One end of the cable connects to the electronic device while the other end can exit the mat through, for example, an opening in the mat's edge, or other opening. Multiple devices and cables can be accommodated. Figures provided herein illustrate different types of mat and channel designs. Other designs are possible.

Abstract: The present invention provides a pitching training tool, comprising a rod-shaped body portion, which has a hollow, cylindrical shaft portion that is lighter than a regulation ball, and a gripping portion, which is integrally formed to one end of this shaft portion; an acceleration sensor or other such detector, which is incorporated in the gripping portion side of this rod-shaped body portion, and which detects a state of motion when the rod-shaped body portion is swung around; an arithmetic processing portion for performing computations based on motion state data from this detector; and a display for displaying the results of computations by the arithmetic processing portion, and is constituted so as to compute in the computing portion at least the rotational speed of the rod-shaped body portion based on the detection results by this detector and to display same.

Abstract: A hockey practice device which provides physiological memory training to the user includes a low, short open bottom housing having a variable resistance striker puck which slides in a slot in the top of the housing, the puck being secured to a slider beneath the top which is secured to a variable tension extensible and retractable spring member having one end fixed to the housing and the other end to the slider, the entire assembly being only about five feet long or less so as to be usable indoors or outdoors in a minimal space.