An exercise machine with electromagnetic resistance selection for changing exercise resistance settings by engaging more or fewer resistance biasing members using a electromagnets. An example implementation includes a movable carriage configured to move substantially along the length of one or more rails. A plurality of resistance biasing members are removably attachable between a stationary biasing member bracket affixed to the machine structure and the movable carriage. A controller changes the resistance settings against the movable carriage by electrically attaching or detaching any preferred number of resistance biasing members between the machine structure and movable carriage.

A rower includes a main frame, a second frame pivotally connected to the main frame with one end thereof and having a protruding portion, a handlebar provided with a slot that corresponds to the slot in size and has the configuration complementary to the protruding portion, and a first magnetically attractive member and a second magnetically attractive member respectively and fixedly installed in the slot of the handlebar and the protruding portion of the second frame and magnetically attractable to each other. In this way, in the process of bending the second frame, the handlebar is not easy to detach from the second frame, so the user can fold the handlebar relatively conveniently and easily, and can avoid the handlebar from being damaged by accidental falling during the folding process.

An air-cleaning fitness device has a main frame, a housing, a driving assembly, a fan device and at least one filter. The housing, the driving assembly and the fan device are mounted on the main frame. The housing has a confined space and an airflow passage. The driving assembly and the fan device are located inside the housing and connect to each other. The fan device has a second inlet and a second outlet. The second inlet and the second outlet are respectively aligned with two ends of the airflow passage. The at least one filter is mounted on the housing and is capable of covering either end of the airflow passage. The driving assembly has at least one driving member which extends out of the housing and drives the fan device. When the user operates the air-cleaning fitness device, the air-cleaning fitness device purifies the air at the same time.

A rowing exercise device comprises a support structure; a movable user support movably associated with the support structure for movement relative to the support structure; a movable foot support movably associated with the support structure for movement relative to the support structure; a handle; and a rowing assembly operatively associated with the handle and at least the movable foot support to cause at least the movable foot support to move relative to the support structure with movement of the handle so that both a user s body and one or both feet move relative to the support structure with movement of the handle.

A training or exercise apparatus may have a base and an adjacent movable armature or frame that carries a riding member, or shuttle, or carrier. The carrier has an engagement interface with an element of sporting or exercise equipment. The sporting or exercise equipment is engaged by the user, typically by being grasped. The apparatus defines a physical or virtual schedule describing an arc for a swing in the particular activity. The apparatus may include a manual or electronic means of imposing resistance to the motion. This resistance may be adjustable, and may be programmable as a function of one or both of position and speed. The apparatus may include an array of sensors such as may be used to determine the pre-existing stroke, and such as may be monitored during training to assess progress. The apparatus may be operated passively, or it may be operated interactively in a manner in which real-time feedback causes the apparatus to adjust resistance to the motion.

A rowing simulation trainer includes a base frame, a pulling unit, an inertia wheel unit and a guiding unit. The pulling unit includes a shaft, a first belt wheel, two cord wheels, two pulling cords, two handgrips and two elastic coiled plates. The guiding unit includes two mounting tubes. Each of the two pulling cords extends through one of the two mounting tubes. Thus, the two cord wheels and the two pulling cords cooperate to drive the inertia wheel unit and are respectively operated independently without interfering with each other. In addition, the two pulling cords are limited by the two mounting tubes so that the two pulling cords are kept in line with and will not be deflected from the two cord wheels.

A rowing machine includes a frame where the frame includes a first support, a second support, and a beam extending between the first support and the second support. A track is defined by at least a portion of the beam, and a sliding member is movably disposed on the track. A hinge joint is disposed in the beam between the first support and the second support defining a first section of the beam and a second section of the beam.

A locking device for an exercise system may include at least one moveable assembly that is in communication with a resistance mechanism. The locking device has an actuating device for selectively engaging the locking device, a locking member having a contact portion, wherein the contact portion of the locking member is not in contact with the resistance mechanism of the exercise system when the actuating device is in a first position, thereby allowing movement of the at least one moveable assembly, and wherein the contact portion of the locking member is in contact with the resistance mechanism of the exercise system when the actuating device is in a second position, thereby preventing movement of the at least one moveable assembly.

Among other things, a rowing technology includes a first rowing machine having an electromagnetic brake providing a resistance to a rower of the machine in each rowing stroke of a series of rowing strokes of the rower An electronic controller causes the resistance of the electromagnetic brake to vary over each rowing stroke in a profile that emulates resistance to which another rower in a shell on water or on a second rowing machine is subjected in each rowing stroke of a corresponding series of rowing strokes.

A slide structure of an exercise machine comprises a slide seat, configured to be movable along an axial direction relative to a slide rail; a roller, rotatably coupled to the slide seat; a dry-running limit slider, having a bushing seat and a dry-running bushing, the dry-running bushing embracing the slide rail on a vertical plane perpendicular to the axial direction. The slide seat moves on the slide rail along the axial direction through the roller to roll along the axial direction, the dry-running limit slider to slide along the axial direction, and the dry-running limit slider to limit the displacement of the slide seat on the vertical plane.