The invention discloses a luminous object combination device and a combination method, in particular relating to the technical field of toys and supplies, comprising a luminous element, the top of the luminous element is connected with a lock fastening piece, and the bottom end of the luminous element is connected with a transparent cover. The bottom of the luminous element is located on the inside of the transparent cover and a plurality of luminous lamps are installed, a clamping mechanism is arranged between the top of the transparent cover and the bottom of the luminous element, and the inside of the luminous element is located above the transparent cover and a battery bin is arranged. The inside of the battery bin is installed with a dry battery. The combined device designed by the invention is suitable for installing on toy items, such as jumping balls, which is convenient for emitting light when used after combined installation, increases the functions of some items, is more beautiful and can warn passers-by. A combination method is designed, which is convenient to assemble and disassemble with other objects, and the combination operation is simple. It can be used to clamp the rope part of the jumping ball with different outer diameters, so as to improve the scope of application.

A hopscotch trampoline has a trampoline with a bed suspended across a trampoline frame. The bed has a bed center, a bed middle, and a bed periphery. A trampoline length is greater than a trampoline width. A hopscotch field is formed on the bed. The hopscotch field includes successive areas. The successive areas are at least partially linearly oriented. Contact sensors mounted on each area and the contact sensors are electrically connected by an electrical connection and electrically connected to a control panel harness. A middle crossbar can extend underneath the bed and connecting a right vertical post to a left vertical post.

Disclosed in certain embodiments is a training mat comprising: a flexible support having a top surface and a bottom surface; a first rail disposed along the top surface of the flexible support; a second rail disposed along the top surface of the flexible support without intersecting the first rail; and a plurality of rungs disposed along the top surface of the flexible support. In certain embodiments, each of the plurality of rails is coupled to flexible support via the first rail and the second rail.

An agility ladder exercise device has plural rungs which are connected by spaced flexible straps. Each rung has a left connector and a right connector, the left connector having structure thereon which engages with a right connector of a similar rung in a non-pivoting connection. The one or more ladders may be laid out on a play surface for use in agility exercises where the rungs of each ladder are spaced parallel to one another. Multiple ladders may be connected side to side, and can change lanes, or form a zig zag path. The ladders are stored with the rungs stacked parallel to one another within a holder with a U-shaped base. Each holder has connectors allowing a pair of holders to be releasably connected, and has a necked down region defined by restraint walls that engage with notches in the rungs.

The present invention provides an exercise device comprising: an outer ring; an inner ring located within the outer ring; and a plurality of spokes connecting the inner ring and the outer ring. A method of use is also provided.

The present invention provides an exercise device comprising: an outer ring; an inner ring located within the outer ring; and a plurality of spokes connecting the inner ring and the outer ring. A method of use is also provided.

A computing system for determining osteogenic loading from an exercise apparatus for performing an exercise is provided. The exercise apparatus includes a loading interface, a frame, a linear adjustment system interposing between and fixedly coupled to the loading interface and the frame, and a sensor coupled to the linear adjustment system. A position of the loading interface of the exercise apparatus is adjusted through a movement of the linear adjustment system at one or more intermediate positions of a plurality of functional positions of the loading interface. A force exerted by a subject on the loading interface at the position in the one or more intermediate positions is received. A measurement of the force exerted by the subject on the loading interface at the position in the one or more intermediate positions from the sensor is obtained. A corresponding osteogenic loading for the force exerted by the subject is determined.

A pitching training device generally having a platform with a generally T-shaped end and a raised pitchers rubber configured to support the pitcher during delivery of the underhanded pitch, and a pair of removable heel guides to inhibit rotation of a drive foot of the pitcher. A stride section, removably connected to and positioned to extend longitudinally from said generally T-shaped end. A goal post assembly configured to movably position a stride bar across the stride section. The stride bar is positioned as a target for a drive foot of the pitcher to clear a predetermined height during the underhanded pitch. The device is lightweight and portable, useable indoors or on a practice field and is operable for left or right handed pitching.

A pitching training device generally having a platform with a generally T-shaped end and a raised pitchers rubber configured to support the pitcher during delivery of the underhanded pitch, and a pair of removable heel guides to inhibit rotation of a drive foot of the pitcher. A stride section, removably connected to and positioned to extend longitudinally from said generally T-shaped end. A goal post assembly configured to movably position a stride bar across the stride section. The stride bar is positioned as a target for a drive foot of the pitcher to clear a predetermined height during the underhanded pitch. The device is lightweight and portable, useable indoors or on a practice field and is operable for left or right handed pitching.

An agility ladder includes a plurality of rungs, a left link assembly disposed between each rung and including ends pivotally attached to left ends of each rung, a right link assembly disposed between each rung and including ends pivotally attached to right ends of each rung, and first and second links included on each of the left and right link assemblies. The first and second links may be pivotally attached at a link pivot joint, where, through pivotal attachment of the left and right link assemblies with the plurality of rungs and pivotal attachment of the first and second links, the plurality of rungs are moveable from an open position where the plurality of rungs are spaced apart from one another to a collapsed position where the plurality of rungs are aligned adjacent to one another and are not overlapping with one another.