An inflatable plyometric box having a first inflatable member adapted to be inflated to a pressure, a second inflatable member on top of the first inflatable member and adapted to be inflated to a pressure, and a connecting member connected to the first inflatable member and the second inflatable member which secures the first inflatable member to the second inflatable member. The first and second inflatable members incorporate drop stitch technology which provides substantial rigidity to first and second inflatable members when the first and second inflatable members are inflated to the pressures. Thus the inflatable plyometric box is substantially rigid to support a user landing on the top of the inflatable plyometric box. The inflatable plyometric box may include a stabilizing member which may be connected to the bottom of the inflatable plyometric box, wherein the stabilizing member is adapted to increase the stability of the inflatable plyometric box.

Portable modular training systems are described herein. In one aspect, a system includes a system container including a container front, a container rear, a container first side, a container second side, a container bottom, and a container top, an exercise structure including: at least one platform connector including: a mounting plate coupled to the system container; a first member coupled to the mounting plate and extending away from the mounting plate at a downward angle relative to the mounting plate; a second member coupled to the first member and the mounting plate and extending away from the mounting plate at an upward angle relative to the mounting plate; and a support arm coupled to the first member and the second member and extending perpendicularly away from the mounting plate; where the exercise structure is wholly supported by the system container when the exercise structure is securely associated system container.

A selectorized dumbbell comprises a handle assembly that comprises a generally triangularly shaped handle housing having an upwardly extending loop style handle in the manner of a kettlebell handle. The handle housing has angled side walls that provide surfaces on which the user's forearm can rest when doing certain exercises. The handle housing is hollow inside. Various add-on weights are vertically stacked on top of another inside the handle housing. The weights are nested together to prevent sliding relative to one another by tongue and groove and pin and hole interconnections. A repositionable connecting pin can be placed into different positions on the handle housing to selectively couple a desired number of the add-on weights to the handle housing.

A compression golf swing training apparatus includes a hitting board mounted atop a framework and configured to move downwardly at the point of impact from the golf club striking the hitting board during a golf swing. Specifically, the downward motion of the hitting board, when struck with a golf club, compresses the compression springs in their holder imitating or replicating the feeling a golfer experiences when taking a divot of golf course grass during a golf swing. The system is reconfigurable and interchangeable with distinct compression spring levels held in their individual spring holders replicating and/or imitating the resistance of the ground the golfer experiences playing on hard, soft, and wet golf course grass conditions.

A removable accessory for a fencing mask provided with a mesh having an array of apertures is provided. The accessory can include a main body having a first surface, and a plurality of projections extending from the first surface of the main body. Each projection is configured to be removably insertable into an aperture of the mesh. Therefore, the accessory may be removably attached to the fencing mask, without damaging the fencing mask.

An adjustable dumbbell system may include a base, two or more weights, a handle assembly, an additional weight, and selection assembly. The two or more weights may be supported by the base and grouped into a first set of weights associated with one end of the dumbbell system and a second set of weights associated with an opposing end of the dumbbell system. The handle assembly may be selectively fixedly joined to the first and second set of weights. The additional weight may be disposed distally of the handle assembly. The selection assembly may be secured to the additional weight. The selection assembly may include a selection member that may be linearly moveable between a selected position where the additional weight is operatively secured to the handle assembly and an unselected position where the additional weight is disengaged from the handle assembly.

Carriers for securely carrying yoga mats are disclosed. In one embodiment, for example, a carrier comprises a planar portion and a shoulder strap portion coupled to the planar portion. The planar portion includes a first surface, a second surface opposite the first surface, and a securing strap coupled to the first surface. In operation, the first surface of the planar portion is positionable to interface with a yoga mat before the planar portion is rolled up with the yoga mat. The yoga mat can continue to be rolled up until the planar portion wraps around an exterior surface of the rolled-up mat. The shoulder strap is then fed through a securing strap on the carrier to secure the carrier to the yoga mat. The shoulder strap can then be used by a yoga practitioner to carry the yoga mat.

An exercise machine may include a frame, a resistance mechanism supported by the frame, and a console configured to control the resistance mechanism and guide a user through a workout using the exercise machine using a projected visual indicator to assist a user in performing the workout properly.

A dumbbell support system is provided and includes a support structure, a biasing article and a system support, wherein the system support is securely associated with the support structure. The system support includes a barbell support having a barbell support shaft and a dumbbell support shaft guide. The system support also includes a dumbbell support having a dumbbell support shaft and a dumbbell support tray, wherein the dumbbell support shaft is connected to the biasing article and movably associated with the barbell support shaft to be configurable between a first configuration and a second configuration via the biasing article.

A system and method for measuring motion properties of a movable object, such as a sporting device, wherein the movable object has an embedded magnetized unit creating a magnetic field. A measurement device, having a first magnetic field sensor positioned a known distance away from a second magnetic field sensor, is positioned in the vicinity of the movable object's trajectory, whereby the first and second magnetic field sensors output signals when the movable object passes within their respective proximities. A control module, that is responsive to the output signals created by the magnetic field sensors, is configured to record the times of output signal events. The control module is further configured to calculate motion properties, such as the speed and rate of spin, of the movable object based upon the recorded times of various sensor output events and the known distance between the first and second magnetic field sensors.