Abstract: An exercise machine including a rocker frame movably coupled with a roller assembly via a torsion resistance mechanism is described. The rocker frame may include at least one arcuate rail to provide floor support for a rocking motion of the rocker frame. One or more pedal control structures may be pivotally coupled with the rocker frame near each distal end of the arcuate rail to drive the rocking motion. The roller assembly may be configured to make a rolling motion when the rocker frame rocks. A torque force can be generated via the torsion resistance mechanism as a result of changes in relative positions between the rocker frame rocking and the roller assembly rolling. The force driving the rocking motion can be countered by the torque force to support exercising movements of a user exerting the force.

Abstract: An exerciser with collapsible components for easy storage and operation is described. The exerciser can include a track with two distal ends, two handle bars may be affixed to the track via the handle coupling assemblies, a plurality of leg members affixed to the track via leg coupling assemblies defined on a bottom side of the track, and slide assembly slidably coupled to the track and movable along the track. A handle bar affixed at a handle storage position via the handle coupling assembly may be substantially hidden under the track. Each leg member affixed at a leg storage position may extend towards the distal ends under the track to reduce the required storage space. Each handle bar affixed at the handle storage position may be fittingly inserted in between a pair the leg members affixed at the leg storage position to reduce the required storage space.

Abstract: An exercise machine applicable for strengthening a user's abdominal muscles is described. The exercise machine can include a base frame, a backrest assembly and a seat assembly. The base frame can have side members and a crossbar member to provide floor support. The backrest assembly may be rotablely coupled with the base frame to swivel with simultaneous rotational movements around two or more axes of rotations. The backrest assembly can include two or more pairs of pivot joints. Each pair of pivot joints may define one of the axes of rotation. Handle bars may be mounted substantially transverse to the axes of rotation. The seat assembly may be affixed to the base frame to allow a user sitting on a seat pad of the seat assembly to cause the swiveling of the backrest assembly via hand pushes on the handle bars.

Abstract: An exercise device includes a base frame having a first baseboard member, a second baseboard member, and a base pad disposed in between. The first baseboard member includes a first locking member disposed on a first headend of the first baseboard member, and the second baseboard member includes a second locking member disposed on a second headend of the second baseboard member. The exercise device further includes a pole frame having a top crossbar, a bottom crossbar, a first side pole, and a second side pole. The first lock member of the first baseboard member is inserted into a cross section of the first side pole and the second lock member of the second baseboard member is inserted into a cross section of the second side pole, such that the pole frame is interlocked with the base frame substantially perpendicularly.

Abstract: An exercise machine applicable for strengthening a user's abdominal muscles is described. The exercise machine can include a base frame, a seat assembly and a backrest assembly rotatably coupled with the base frame. The base frame can include side members and a crossbar member to provide floor support. The backrest assembly may be configured to swivel with rotational movements around at least one axis of rotation. The backrest assembly may include at least one swivel structure and two handle bars. Each swivel structure may be rotatable around a separate axis of rotation. The handle bars may be mounted substantially transverse to a particular axis of rotation. The seat assembly can include a seat pad affixed to the crossbar member to allow a user sitting on the seat pad to cause the swiveling of the backrest assembly via hand pushes on the handle bars.

Abstract: An exercise machine applicable for strengthening a user's abdominal muscles is described. The exercise machine can include a base frame, a backrest assembly and a seat assembly. The base frame can have side members and a crossbar member to provide floor support. The backrest assembly may be rotablely coupled with the base frame to swivel with simultaneous rotational movements around two or more axes of rotations. The backrest assembly can include two or more pairs of pivot joints. Each pair of pivot joints may define one of the axes of rotation. Handle bars may be mounted substantially transverse to the axes of rotation. The seat assembly may be affixed to the base frame to allow a user sitting on a seat pad of the seat assembly to cause the swiveling of the backrest assembly via hand pushes on the handle bars.

Abstract: An exercise machine applicable for strengthening a user's abdominal muscles is described. The exercise machine can include a base frame, a seat assembly and a backrest assembly rotatably coupled with the base frame. The base frame can include side members and a crossbar member to provide floor support. The backrest assembly may be configured to swivel with rotational movements around at least one axis of rotation. The backrest assembly may include at least one swivel structure and two handle bars. Each swivel structure may be rotatable around a separate axis of rotation. The handle bars may be mounted substantially transverse to a particular axis of rotation. The seat assembly can include a seat pad affixed to the crossbar member to allow a user sitting on the seat pad to cause the swiveling of the backrest assembly via hand pushes on the handle bars.

Abstract: The present invention discloses a foldable skateboarding fitness equipment having a dual-rail track bar in a circular arc shape and slidably sheathed on a cushion frame by a pulley, a turnable cushion seat pivotally coupled to the cushion frame by a ball bearing, a front support frame of an elbow support cushion fixed separately on both sides of the top of the track bar by a pivoting base, a link rod pivotally coupled between the bottom of the front support frame and the top of the track bar, such that a user can kneel on the cushion seat and push the cushion seat to drive the cushion frame to slide back and forth along the track bar, as well as contracting and bending the waist or abdomen to rotate the cushion seat to the left and the right.

Abstract: An extendable sound bar assembly comprising at least an extending bar segment and a plurality of detachable bar segments is described, the extending bar segment having first and second locking structures, the detachable bar segments including first and second bar segments. The first bar segment can include a third locking structure capable of interlocking with the first locking structure to allow the first bar segment to be attached to and detached from the extending bar segment. The second bar segment can include a fourth locking structure capable of interlocking with the second locking structure to allow the second bar segment to be attached to and detached from the extending bar segment. The first and second bar segments can be aligned with the extending bar segment to form a single sound bar.

Abstract: The present invention discloses a foldable skateboarding fitness equipment having a dual-rail track bar in a circular arc shape and slidably sheathed on a cushion frame by a pulley, a turnable cushion seat pivotally coupled to the cushion frame by a ball bearing, a front support frame of an elbow support cushion fixed separately on both sides of the top of the track bar by a pivoting base, a link rod pivotally coupled between the bottom of the front support frame and the top of the track bar, such that a user can kneel on the cushion seat and push the cushion seat to drive the cushion frame to slide back and forth along the track bar, as well as contracting and bending the waist or abdomen to rotate the cushion seat to the left and the right.

Abstract: A twisting exerciser includes a base having an arched track arranged along the periphery thereof, two swivel arms each having a front end pivotally connected to a pivot at the top center of the base and a rear end provided with a knee pad and slidably coupled to the arched track of the base, a handlebar detachably fastened to a stem at the front side of the base and having two grips at the distal end and a connection rod for selectively joining the two swivel arms for synchronous movement along the arched track of the base.