An exercise machine includes a frame, a seat selectively movable with respect to the frame, and a resistance mechanism connected to the frame. The seat is adjustably positioned between an upright position that orients a user in an upright orientation with respect to a pedal assembly when the exercise machine is in an upright exercise mode and a recumbent position that orients the user in a recumbent orientation with respect to the pedal assembly when the exercise machine is in a recumbent cycling exercise mode.

A stationary exercise machine in accordance with some examples herein may include a frame, a crankshaft rotatably supported by the frame, an upper moment-producing mechanism and a lower moment-producing mechanism both operatively engaged to the crankshaft to cause the crankshaft to rotate. The lower moment-producing mechanism and the upper moment-producing mechanism may be resiliently coupled to one another, such as via a resilient coupling between a crank arm of the lower moment-producing mechanism and a link or virtual crank arm or the upper moment-producing mechanism. The exercise machine may further include a measurement apparatus which may be configured to measure differential forces between the upper and lower mechanisms.

A vertical stepping machine includes a frame, a crank wheel connected to the frame, a crank arm extending away from a rotational axis of the crank wheel, and a pedal beam connected to the crank arm. A linkage assembly is connected to the frame at a fixed frame location and to the pedal beam at a fixed pedal beam location. A first linkage member of the linkage assembly has a length that forces the pedal beam to travel along an elliptical path as the crank wheel rotates.

A stationary exercise apparatus includes a frame; two moving members respectively coupled to the frame, one end portions of the moving members located to define a swing axis; two swing members, one end portions of the swing members respectively pivotally joined to the swing axis of the moving members; two supporting members respectively connected to the swing members, wherein one end portions of the supporting members are movably coupled to the frame, the other end portions of the supporting members are respectively joined to the swing members so that one end portions of the supporting members moving along a reciprocating path; and two pedal sets respectively coupled to the supporting members, the pedal sets moving along a first path while the one end portions of the supporting members are reciprocating along the reciprocating path and the other end portions of the supporting members are rotating about a rotating axis.

An exercise apparatus includes a frame adapted to be rested on a floor surface, a crank mechanism that has two cranks mounted on the frame, two swing members pivotally mounted on the frame, two connecting assemblies, and a guiding device. Each of the two connecting assemblies has a plurality of connecting rods connecting the respective crank and the respective swing member. The two connecting assemblies define two pedal portions for supporting a user's feet, and up-and-down movement of the pedal portions causes rotation of the two cranks along a circular path. The guiding device is configured to connect the two swing members for guiding swing movement of the two swing members within a predetermined swing range. The predetermined swing range is adjustable so as to provide various exercise paths.

A stationary exercise machine may include reciprocating hand members, such as handles, and/or reciprocating foot members, such as foot pedals. The reciprocating hand members may be operative to apply a first moment to a crankshaft, and the reciprocating foot members may be operative to apply a second moment to the crankshaft. The second moment may be different than the first moment. The reciprocating foot members may cause a user's feet to move along a closed loop path that is substantially inclined, such that the user's foot motion simulates a climbing motion more than a flat walking or running motion. The reciprocating hand members may be configured to move in coordination with the foot members via a linkage operatively coupling the hand members with the foot members. A resistance mechanism may apply resistance to crankshaft rotation, and the resistance mechanism may be adjustable while the user is using the machine.

An exercise device comprising: a frame (10), first and second foot supports (24a, 24b) suspended on a frame (10) by first (18c, 26c, 26b) and second (18d, 26a, 26d) linkage assemblies, one or the other or both of the frame linkage assemblies being interconnected to an adjustment device (55, 56) that is selectively adjustable by a user to select one of a plurality of discrete segments (AP, P1, AP, P2) of a master or overall path of arcuate travel (J) and to a lateral adjustment device (58a, 58b) that enables the user to selectively adjust the path of travel of the foot supports a selected angle (8, 8) relative to a central axis of the device.

Described herein are embodiments of stationary exercise machines having reciprocating foot and/or hand members, such as foot pedals that move in a closed loop path. Some embodiments can include reciprocating foot pedals that cause a user's feet to move along a closed loop path that is substantially inclined, such that the foot motion simulates a climbing motion more than a flat walking or running motion. Some embodiments can further include reciprocating handles that are configured to move in coordination with the foot via a linkage to a crank wheel also coupled to the foot pedals. Variable resistance can be provided via a rotating air-resistance based mechanism, via a magnetism based mechanism, and/or via other mechanisms, one or more of which can be rapidly adjustable while the user is using the machine.

An exercise device has a frame supporting guide links to which foot support links are pivotally attached. An arc center drive assembly is provided to raise and lower the foot receiving areas of the foot support links. Vertical drive elements couple a crank system to the arc center drive assembly to control the raising and lowering of the foot receiving areas.

An exercise device has a frame supporting guide links to which foot support links are pivotally attached. An arc center drive assembly is provided to raise and lower the foot receiving areas of the foot support links. Vertical drive elements couple a crank system to the arc center drive assembly to control the raising and lowering of the foot receiving areas.