A work platform has a top member with a surface sized to receive a user's feet thereon while standing and a bottom member coupled to the top member. The bottom member has a width and length generally equal to the width and length of the top member. The bottom member has a curved surface generally at the longitudinal center of the work platform defined at least partially by a radius of curvature of between about 100 mm and about 850 mm. The curved surface induces instability under a user standing on the top member to thereby facilitate active muscle engagement in the user's legs while standing on the work platform.

Trampoline systems containing multiple trampoline jumping surfaces are disclosed. Methods of making and using trampoline systems containing multiple trampoline jumping surfaces are also disclosed.

A shaped standing mat or base providing a trampoline-like rebounding surface that is a highly responsive and dynamic support surface for a standing person where that person is able to maintain a proper stance relative to their foot angle, and to engage in mild exercise movement and foot rotation and stretching without undue interruption of mental concentration in a work or other environment.

A soccer training device can include: a body having a front surface facing a first direction; and an illuminating contact sensor associated with the body so that a light emitter is visible and capable of emitting light in substantially the same first direction that the front surface faces and so that a force contact above a predetermined threshold with the body is sensed by a sensing module. In some aspects, the illuminating contact sensor is at least one of: coupled with the soccer training member; removable from the soccer training member; or integrated with the soccer training member.

The present disclosure provides generally for systems and devices for a game utilizing a projectile. According to the present disclosure, the projectile-based game system may comprise multiple components including a projectile, a plurality of contacting elements, a plurality of players, and a base structure comprising internal and external partitioning elements. The projectile-based game may include a base structure with various components and designs. Additionally, the present disclosure may include at least one exemplary process for utilizing a projectile-based game system.

A swimming aid being configured to increase a user's buoyancy in the water. The swimming aid has a supporting structure with a back float. The supporting structure is designed to secure the swimming aid to a user's upper body. The back float is tiltableseen in useabout a transverse axis connected to the supporting structure. The tilting movement of the back float to the supporting structure enables the user to obtain an inclined, more vertical posture in the water, which will improve the user's ability to keep their head above the surface of the water and also intuitively encourages the user to stretch out their hands to make a supportive movement with the hands in the water. Thus, the swimming aid increases water safety and at the same time promotes swimming skills.

An offloading system for use with a treadmill includes an air chamber configured to be selectively inflated between a deflated condition and an inflated, operating condition, a user seal coupled to the air chamber and adapted to receive a user so that, in the operating condition, at least a portion of the user is received in the user seal and positioned within the air chamber, a pump operable to inflate the air chamber, and a controller configured to determine an occurrence of a loss of pressure in the air chamber and, in response to the occurrence, cause a reduction of speed of a running belt of the treadmill.

An exercise device having rounded ends of differing radii.

A seating device for increasing use of a user's core muscles includes an adjustable air-filled bladder having generally flat top and bottom surfaces, and a significantly stiffer but resilient foam cover that fits over and matingly engages to the bladder. The cover is contoured, having both a central groove or recess that partially receives and accommodate male genitalia, and a raised ridge toward the front of the device to help keep the user properly positioned on the cover. The fluid-filled bladder is astable or wobbly, requiring the user to use his core muscles to maintain an upright, seated position, while the cover provides a comfortable contoured seat. The device can be used with an exercise device in which the user sits on the device, including on an abdominal exercise device, thus increasing both the abdomen strengthening action of the exercise as well as providing increased comfort for the user.

An exercise machine may include a frame with foot pedals mounted thereon and a seat having an inflatable bladder whereby the user may undertake a cardiovascular workout and a core workout of abdominal and back muscles.