A treadmill may include two separate left and right belts rotating around two sets of rollers, four legs having an adjustable height via air suspension to customize an inclination of the treadmill, a thermoelectric assembly, a fragrance assembly having a rotating fragrance cartridge to emit various smells toward a user of the treadmill, a display on which exercise programs are played, and an attachment module having a dispensing tray on which treats are dispensed. A handle of the treadmill may have a sensor to sense a height and front-rear position, and a belt divider provided between the left and right belts may have position or proximity sensors to sense a left-right position. An inclination of the treadmill may be automatically adjusted according to positions detected by the sensors, and the fragrance assembly, attachment module, and inclination may be automatically operated in accordance with an exercise program played on the display.

A differential air pressure system has a pressure bag with windows and preferred folding configuration such that when the bag is folded no window is folded. The pressure bag is supported by a lift support that is proximal to a user control panel and adjacent to or nearly adjacent to the user who is coupled to the pressure bag. A treadmill base for use with differential air pressure equipment is provided. There are various improvements provided to adapt the operations of the DAP system via the use of separate pressure volume and non-pressure volume portions of the treadmill base. Various improvements to serviceability and repairs are provided by placement of components outside of the pressure volume portion or by providing one or more pressure volume access points.

A handlebar device and an exercise bike are provided. The handlebar device comprises a handle assembly, an electric control clutch part, a base, a return part, and a return detection element, wherein the handle assembly comprises a handle, a pedestal and a rotating shaft, and the handle is fixedly connected to the pedestal, the rotating shaft has one end connected to the pedestal and the other end rotatably connected to the base, the electric control clutch part is connected between the rotating shaft and the base, so that the rotating shaft is fixed or rotatable relative to the base; the return part is connected between the pedestal and the base to make the base return to an initial position; and the return detection element is used to detect that the rotating shaft reaches the to-be-returned position and transmit it to the electric control clutch part.

A male-female quick connect system is described, along with related methods and uses. Example applications include using the strap as an exercise resistance trainer band, a boating mooring connector, a replacement or supplement to freight transport tie-downs, and others. An interchangeable strap connection system is described, having: a male connector; a strap connected to the male connector; a plurality of female sockets spaced from one another and anchored to a substrate, with each female socket structured to permit the male connector to interchangeably quick connect with and quick release from the female socket.

An exercise device comprises a base and a rotation assembly movably attached to the base. The rotation assembly comprises an exercise interface assembly comprising at least one exercise support portion configured to be moved by a user, a crank assembly comprising at least one crank rotatably attached to the at least one exercise support portion and configured to be rotated about a crank rotational axis by the at least one exercise support portion, and a flywheel assembly comprising a flywheel configured to be rotated about a flywheel rotational axis due to rotation of the at least one crank. The crank rotational axis and the flywheel rotational axis are substantially perpendicular to each other.

Golf club shaft assemblies with removable counterbalance weights are disclosed herein. In each embodiment, a shaft sleeve is secured within a butt end of a shaft and a weight is removably affixed to the shaft sleeve via locking structures, magnets, and/or spring devices.

A training device useful at least for exercises for bicep workouts and strengthening is configurable for multiple types of movement and use. The training device has a frame, two arm cradles attached in variable configurations, and a multi-use strap. The arm cradles are removable from the frame for re-configuration or for storage and transport. To configure the training device for compact storage and transportation, the arm cradles can be detached, nestled into the inner side of the frame, and wrapped by the strap. To attain various workout configurations, the arm cradles can be interchanged on the frame, reoriented on the frame, and adjusted to preferred lateral positions on the frame.

A rowing machine includes a handle having a first portion and a second portion that are selectively connectable. The rowing machine includes a flywheel driven by two separate cables. A first cable is connected to the first portion of the handle and a second cable is connected to the second portion. A spreader extends the width between the first portion and the second portion, allowing a user to perform kayak and canoeing exercises.

Embodiments of the present invention comprise a portable exercise platform allowing users to exercise on a soft substrate. The portable exercise platform comprises at least three panels wherein the at least three panels are connected by at least one hinging device allowing the at least three panels to lay flat or fold into proximity to each other. The at least three panels are configured with a top surface and bottom surface such that the top surface is configured to support a user and the bottom surface is configured to contact the soft substrate when the portable exercise platform is lying flat.

A handheld exercise device is an apparatus that enables the user to exercise the upper body due to the load applied on the user's arms from the centripetal force created by moving the apparatus using one or two hands. To do so, the apparatus may include an O-ring housing, a crossbar, a bearing assembly, and a control system. The O-ring housing is designed to retain the bearing assembly in such a way that the user can move the bearing assembly in a circular motion within the O-ring housing. The crossbar facilitates the handling of the O-ring housing with one or two hands in order for the user to move the bearing assembly in a circular motion within the O-ring housing. The control system helps the user keep track of the movement of the bearing assembly so that the user can measure the exercise progress while handling the apparatus.