Lever-type rowing machine, whose main rigging dimensions meet the corresponding parameters of sweep rowing or sculling boat is mounted to the base frame by using front and rear elastic suspension so that the simulator makes it possible to rotate (tilt) about its transverse and longitudinal axes and move vertically, thus making it possible to simulate the boat swings on the transverse and longitudinal axes and movement in the vertical direction. In addition, the simulator has passive and active stabilization systems, enabling the athlete to maintain a balance, and stiffness of its front and rear suspension and stabilizer system can be adjusted depending on the weight and balancing ability of user. There is also a possibility to constraint the suspension thus ensuring full stability of the simulator and exercise regime, corresponding to the exercising on common rowing machines.

A figure trimmer comprises a base, a pedal set, and a rotating assembly. The pedal set comprises a left pedal and a right pedal. The rotating assembly movably connects with the base. The rotating assembly is able to rotate about a shaft of the base. The rotating assembly comprises two ends, in which one end includes a first shaft and the other includes a second shaft. The left pedal can rotate about the first shaft, and the right pedal can rotate about the second shaft.

A figure trimmer comprises a base, a pedal set, and a rotating assembly. The pedal set comprises a left pedal and a right pedal. The rotating assembly movably connects with the base. The rotating assembly is able to rotate about a shaft of the base. The rotating assembly comprises two ends, in which one end includes a first shaft and the other includes a second shaft. The left pedal can rotate about the first shaft, and the right pedal can rotate about the second shaft.

An exercise chair includes a frame and a seat rotatably coupled to the frame. First and second front support members are coupled to the frame in laterally spaced part relation and first and second rear support members are coupled to the frame in laterally spaced part relation, the first and second front support members and the first and second rear support members cooperating to support the frame above a surface.

An exercise chair includes a frame and a seat rotatably coupled to the frame. First and second front support members are coupled to the frame in laterally spaced part relation and first and second rear support members are coupled to the frame in laterally spaced part relation, the first and second front support members and the first and second rear support members cooperating to support the frame above a surface.

A device suitable for providing a workout for surfers and as a general exercise device includes a platform on which a user may kneel, sit, lie, or stand. The platform is mounted on a support frame including legs for supporting the top of the frame above ground level. A rod is mounted on the support frame and extends away from the platform. At least one resistance and a handle are provided on the rod, which can be grasped by a user and pulled against the resistance. The platform is mounted on the support frame by a mounting which allows the platform to tilt, particularly laterally from side to side about an axis which is parallel or co-axial to the axis of the rod. The mounting is adjustable to allow the degree of instability of the platform to be adjusted.

An abdominal twist exercise device includes a device frame, front and rear rotational axles, a main handle bar, a rotation converter, an adjustable gear, a disengaging lever, a weight, a weight bar, a support rail, a safety handle bar, rotation counters, and a user platform, such that when the main handle bar rotates to one side, the user platform rotates to an opposing side. A rotation converter can include a front chain sprocket, an intermediate rotational axle, an intermediate chain sprocket, a roller chain, an intermediate gear, a rear gear; or a front belt sprocket, a rear belt sprocket, and a twisted belt, connecting the sprockets. Optionally, the front and rear axles can be telescoping.

An abdominal twist exercise device includes a device frame, front and rear rotational axles, a main handle bar, a rotation converter, an adjustable gear, a disengaging lever, a weight, a weight bar, a support rail, a safety handle bar, rotation counters, and a user platform, such that when the main handle bar rotates to one side, the user platform rotates to an opposing side. A rotation converter can include a front chain sprocket, an intermediate rotational axle, an intermediate chain sprocket, a roller chain, an intermediate gear, a rear gear; or a front belt sprocket, a rear belt sprocket, and a twisted belt, connecting the sprockets. Optionally, the front and rear axles can be telescoping.

An apparatus for human exercise includes a first foot pad attached to a first guided carrier member, and a second foot pad attached to a second guided carrier member. Motion of the first and second guided carrier members is limited to linear translation along a longitudinal axis of a horizontal guide rail. First and second and third elastic members may be attached to and apply opposite elastic forces to the first and second guided carrier members along the longitudinal axis. A transverse frame member is fixed to the horizontal guide rail and is oriented horizontally and transverse to the longitudinal axis. A vertical frame member with a raised hand rail may extend from the transverse frame member. The first and second foot pads may be pivotably coupled to the first and guided carrier members by torsional elastic members.

A waist fitness apparatus includes main body and a resilient cover. The main body has a base pivotally connected with a supporting board through an eccentric unit, and the base is used to distribute the weight of the user, so the main body can be stably disposed on the ground. The present invention is advantageous because the height of the supporting board is higher than the height of the knee height of an average adult, the user does not have to bend the knees when sitting on it to increase the comfortableness. Also, the supporting board can be dragged back to its original position by the cover when it is not in use, so the user does not have to adjust the supporting board.