A multi-function exercise machine includes a vibration machine which includes a base and a step seat. The base is provided with a driving device connected to a loading base which is able to swing and vibrate repeatedly. The top of the loading base is connected to the step seat while a rotating disc is arranged at the step seat. An adjustment part is pivotally disposed on each of two sides of the base and rotatable thereon. After being turned, the adjustment abuts against the base so that the loading base is fixed, unable to be wobbled. The rotating disc is pivotally disposed on the middle part of the step seat and able to be turned on the step seat.

It is provided an apparatus for training a person's lower and/or upper extremities, comprising at least two motion elements which are arranged on a base element, wherein the motion elements each have an axis of rotation around which an actuating element can be moved. The motion elements each are independently movable relative to the base element about a first axis of movement, wherein the first axis of movement extends substantially perpendicular to an extension surface of the base element. Each motion element has a separate drive in order to rotate the actuating elements about the axis of rotation, and that the apparatus includes a control element which can individually actuate each drive in order to provide for a movement of each drive independent of a movement of another drive.

Disclosed is an exercise device for allowing multiple exercise movements. The device includes a substantially cube-shaped frame, and a unit for doing exercise movements on at least one side of the frame.

A muscle activation system including: an inclined platform for a user to stand on; a rigid upper body user support frame attached to the inclined platform for supporting the upper body of a user standing on the inclined platform; a base, coupled to the inclined platform, the coupling allowing relative orientation motion between the base and inclined platform. The platform adapted to undergo a precession like motion around a central point so as to circumferentially move a user's upper body, when supported by the rigid upper body user support frame, substantially through an arc around a central point.

A twisting exerciser includes a base with a first shaft, a second shaft and a stop member respectively connected thereto. A first swingable unit and a second swingable unit are respectively and pviotably connected to the first and second shafts. The first swingable unit has a pad and first fan-shaped gear. The second swingable unit has a handle assembly and a second fan-shaped gear which is engaged with the first fan-shaped gear. The user holds the handle assembly, and the upper body and the lower body swing in opposite direction by the engagement between the first and second fan-shaped gears. The stop member limits the angle that the first fan-shape gears swings. The user may sits in the pad or stands on the pad to operate the twisting exerciser. The twisting exerciser is simple and safe.

A twisting exerciser includes a base with a first shaft, a second shaft and a stop member respectively connected thereto. A first swingable unit and a second swingable unit are respectively and pviotably connected to the first and second shafts. The first swingable unit has a pad and first fan-shaped gear. The second swingable unit has a handle assembly and a second fan-shaped gear which is engaged with the first fan-shaped gear. The user holds the handle assembly, and the upper body and the lower body swing in opposite direction by the engagement between the first and second fan-shaped gears. The stop member limits the angle that the first fan-shape gears swings. The user may sits in the pad or stands on the pad to operate the twisting exerciser. The twisting exerciser is simple and safe.

A pivot board exercise device has a top circular part that may rotate in relation to a bottom circular part, and a unique unibody or complex multi-arm resistance mechanism is secured at its center to a rotational center platform of the top circular part, and is secured at the end of each arm to posts projecting from the bottom circular part. The unibody multi-arm resistance mechanism is a single piece of resilient/flexible material, the complex multi-arm resistance mechanism has multiple arms attached at the ends to the bottom part, so when the top of the invention is rotated relative to the bottom, resistance is offered, the resistance increasing with rotation and occurring regardless of the direction of rotation.

A rotatable disc exercise apparatus includes a first disc having a first outer planar surface and a first inner surface, a second disc fastened to the first disc and rotatably supported on the first disc by a first annular set of ball bearings and a second annular set of ball bearings. The second disc has a second outer planar surface and a second inner surface facing the first inner surface. A single biasing member sandwiched between the first and second discs resiliently biases the second disc to a neutral rotational position between the discs. The first annular set of bearings is captured between the inner surfaces by an annular outer wall of one of the discs and an inner annular rib of the other one of the discs. The second set of bearings is carried in an annular race between the first and second inner surfaces.

A rotatable disc exercise apparatus includes a first disc having a first outer planar surface and a first inner surface, a second disc fastened to the first disc and rotatably supported on the first disc by a first annular set of ball bearings and a second annular set of ball bearings. The second disc has a second outer planar surface and a second inner surface facing the first inner surface. A single biasing member sandwiched between the first and second discs resiliently biases the second disc to a neutral rotational position between the discs. The first annular set of bearings is captured between the inner surfaces by an annular outer wall of one of the discs and an inner annular rib of the other one of the discs. The second set of bearings is carried in an annular race between the first and second inner surfaces.

In one or more embodiments, one or more systems, methods, and/or processes may provide first images to a user; determine a rotation of a head of the user; provide second images, based at least on the rotation, to the user; and rotate a platform in accordance with the rotation. In one example, the platform may include a movement belt, and one or more of a walking movement and a running movement of the user may be determine via the movement belt. In another example, one or more optical sensors may be utilized to determine movements of the user. In one or more embodiments, determining the rotation of the head of the user may include utilizing one or more of a gyroscope and an accelerometer of a head mounted display, worn by the user. For example, the head mounted display may provide images of a virtual reality environment to the user.