An exercise device for performing a variety of movement patterns is provided, having an upper link pivotally mounted to a lower leg link and a foot support on a distal end of the lower leg link. A first transfer system is movably coupled to a frame and including a first transfer member coupled to the first upper leg link and a second transfer member coupled to the second upper leg link, thereby enabling substantially reciprocating motion of the first leg link relative to the second leg link. A second transfer system is also provided and may be movably coupled to the frame and including a pair of third transfer members coupled to each of a pair of fourth transfer members by way of each of a pair of transfer couplings, each movably mounted to the frame. The fourth transfer members may be coupled to the first lower leg link and the second lower leg link, whereby movement of the first lower leg link causes movement of the second lower leg link irrespective of movement of the upper leg links thereby providing a stable platform for the user and also enabling an infinite number of gait patters by the user.

An exercise device with a pair of upper links coupled to the frame and a pair of lower links pivotally coupled to the upper links is provided. A pair of pedals is received on a distal end of each of the lower links. A transfer system between the pair of upper links may include a first and a second pushrod, each with a first end pivotally coupled to each upper link and a second end opposite to the first end. A first and a second pivot arm, each pivotally coupled to the frame, may be included, each pivot arm receiving a respective pushrod. A pliable connector may be coupled to the first pivot arm and the second pivot arm, thus providing compliant reciprocating movement of the upper links.

An elliptical trainer comprises a frame set, two first transmission rods, two second transmission rods, two footboard assemblies, a holding flywheel assembly, a stand flywheel assembly, and two eccentric link rods. When a user is stepping the two footboard assemblies and taking exercise with elbows on the two second transmission rods, the two footboard assemblies may be stepped up and down to recycle and each second transmission rod may be rotated to reciprocate along an arc and centered in a stand ear. At this time, each drag rod of two stand ears arranged right and left may pull the corresponding eccentric link assembly to rotate 360 degree and the torque of the third flywheel may not overlap each drag rod of each eccentric link assembly vertically. Accordingly, the arrangement of each eccentric link assembly may prevent the swing operation from being stuck to pause or operate unsmoothly.

An exercise device including a frame with a first crank assembly rotatably coupled to the frame about a first axis and a second crank assembly rotatably coupled to the frame about a second axis. A control system may be used in communication with the first crank assembly and the second crank assembly, which may provide a synchronous movement of the first crank assembly relative to the second crank assembly. A pedal arm may be provided with a first end pivotally coupled to the first crank assembly and a pedal positioned on a second end. A crank link may be used with one end coupled to the second crank assembly and a second end coupled to the pedal arm. The crank link may be movable on the pedal arm which may provide varying paths of motion of the pedals.

An exercise apparatus for leg exercises includes a frame, two first link rods, two second link rods, and two pedals. Each first link rod has a rotating portion and a first reciprocating portion respectively moving along a circular path and a first reciprocating path. Each second link rod has a second reciprocating portion moving along a second reciprocating path. Each first link rod has a first pivot portion connected to a second pivot portion of the corresponding second link rod. Each pedal is coupled to the corresponding second link rod, moving along an elongated closed path. The first reciprocating path, the second reciprocating path and the closed path are located below a lowermost position of the circular path, and height ranges of the first reciprocating path and the second reciprocating path at least partially overlap.