A training system, kit, and method including a weighted wearable equipment, e.g. gloves, having a sensor (e.g. accelerometers, gyroscopes, photoelectric sensors, position sensors, tilt sensors, pressure sensors, temperature sensors, blood pressure sensors, heart rate monitors, and SpO2 sensors) and including a weight enhancement (e.g. weight bodies in closed pockets); a non-weighted wearable equipment of the same type as the weighted wearable equipment, the non-weighted wearable equipment having a sensor and. not including a weight enhancement; and a training application in functional communication with each of the weighted wearable equipment and the non-weighted wearable equipment and having a data processor that includes instructions for: analyzing data received from the sensor of each of the weighted wearable equipment and the non-weighted wearable equipment and generating predictive information derived from exercise training data from the sensors.

A device including a first member for supporting a user; and a second member 14, attached to the first member, including a counterbalance portion. The first member and the second member are each moveable, and operable to slide with respect to each other in opposite directions, between a first position and a second position. The device can be operable such that between the first and second positions, the combined center of mass of the device 10 and its user remains substantially fixed. This serves to reduce the extent of forces and vibrations generated by use of the device on the object to which the device is located.

A multiple exercise medicine ball including a medicine ball body having core, a pair of diametrically opposed indents in an outer wall thereof, and a pair of u-shaped handles which extend from the indents and can be raised for use as a dumbbell, a barbell and a curl bar. A pair of cylindrical bars, rotatably disposed in a pair of channels in the core and extending outwardly through a center of the indents, can be gripped while the user in a pushup exercise position to perform an abdominal wheel exercise. An inverted substantially u-shaped grip member, which extends from atop the medicine ball, is used for kettlebell fitness training. A 360 degree rotatable motion ball protrudes from a bottom side of the medicine ball body.

A dumbbell has a grip rod and multiple counterweight blocks. The grip rod has two connection segments each having multiple baffles to define multiple connection recesses between the baffles. The counterweight blocks are engaged respectively with the connection recesses. Each counterweight block has a body and a buckle. The body has an engaging channel extending from a center to an edge of the body and being expandable. The engaging channel has an opening and two protrusions to form an engaging space for being mounted around one of the connection segments. The buckle has a first end and a second end. The first end is connected pivotally to the body and at a position on one of two sides of the engaging channel. The second end is connected detachably with the body at a position on the other one of the two sides of the engaging channel.

An exercise and massage device utilizes a substantially spherical body having a central cavity that extends to opposite sides of the spherical body so that the cavity forms openings on opposite sides of the spherical body. A transverse handle is positioned within the cavity that extends across the cavity. At least one grasping portion is located within the cavity and is spaced between the transverse handle and at least one of the openings of the central cavity to provide a fingerhold during use. A resilient outer layer surrounds the spherical body and provides an exterior surface of the spherical body. The resilient outer layer is provided with projections to facilitate massage when used in the massage mode when the device is used in a massage mode. The device is weighted to provide a total weight of from 2 lbs or more. In another embodiments of an exercise and massage device at least one ring member is encased within the spherical body to provide at least one of weight and structural support to the device.

An exercise and massage device utilizes a substantially spherical body having a central cavity that extends to opposite sides of the spherical body so that the cavity forms openings on opposite sides of the spherical body. The spherical body has an outer core of a first resilient hardness. A single rigid handle is positioned within the cavity. The openings of the cavity are sized and configured for allowing a user to access and manually grasp the handle through either opening. A resilient outer layer surrounds the outer core of the spherical body and provides an exterior surface of the spherical body. The resilient outer layer has a second resilient hardness that is less than that of the first resilient hardness of the outer core of the spherical body to provide a cushioning effect when the device is used in a massage mode. The device is weighted to provide a total weight of the device of from 2 lbs or more.

A training device for the human or animal body includes a balance body with a movable centre of mass and a holder with which the balance body can be carried. The holder includes a harness with connectors for connecting to a torso of the body and with a cavity in which the balance body is at least partially received and fixed. The harness particularly includes a first part with connector for attaching to a back of the user and a second part connected releasably to the first part. The first part and the second part adjoin each other so as to form a cavity which is open on both sides and in which the balance part is at least partially received in substantially fitting manner.

A free weight includes: an enclosure comprising a plurality of body sections assembled in a shape approximating a torus, each body section forming part of the approximated torus and having a sectional seam formed along an approximated major diameter of the approximated torus, and each body section is coupled to each adjacent body section at an inter-sectional seam, each inter-sectional seam formed along an approximated section diameter of the approximated torus; and a fill disposed within an interior space formed by the enclosure.

Training equipment includes a hollow shaft having a sidewall defining an internal cavity and at least one polymer material filling at least a portion of the internal cavity. The polymer material may fill the entire internal cavity of the hollow shaft. The polymer material may be a visco-elastic polymer material or polyurethane. A spacer or a filler may fill at least a portion of the internal cavity. A method of making weighted training equipment with a hollow shaft having a sidewall defining an internal cavity may include injecting a curable composition into at least a portion of the internal cavity. The method may further include curing the curable composition into a polymer material.

In one aspect, the invention features a barbell including a first end portion, a second end portion, and a middle portion, where the middle portion is couplable to the first end portion and the second end portion. The middle portion includes a male coupling extending from a first end of the middle portion, the male coupling providing a first coupling mechanism that engages with a corresponding female coupling of the first end portion, and a female coupling providing a second coupling mechanism that engages with a corresponding male coupling of the second end portion.