An exercise machine with a slidable carriage and accessories providing for a plurality of exerciser positioning surfaces and gripping handles. The exercise machine generally includes one or more lifting handles for raising or lowering either end of the exercise machine with respect to a ground surface. The exercise machine may also include a plurality of wheels each including a ridge adapted to engage with a corresponding groove in a track of the exercise machine. The exercise machine may also include a handle including a pair of arms which are positioned at a distance just greater than a width of the carriage.

An exercise machine adjustable resistance system and method for efficiently varying the workout resistance for an exercise machine. The exercise machine generally includes a carriage movably positioned with respect to the at least one rail, a plurality of springs selectively connectable to the carriage to provide a resistance level to the carriage, a plurality of electrically actuated mechanical devices adapted to latch a corresponding one of the plurality of springs to the carriage when in the latch state and unlatch a corresponding one of the plurality of springs to the carriage when in the unlatch state and a control unit in communication with the plurality of electrically actuated mechanical devices to selectively control the state of each of the plurality of electrically actuated mechanical devices to be within the latch state or the unlatch state.

An exercise machine resistance adjustment system for providing an exerciser the ability to immediately adjust the resistance force by changing their body position on the movable carriage or end platforms. The exercise machine resistance adjustment system generally includes a frame, a carriage movably positioned on the frame, a spring connected to the carriage to apply a biasing force to the carriage, one or more left projections within the carriage adapted for a left hand of an exerciser to grasp, and one or more right projections within the carriage adapted for a right hand of an exerciser to grasp. The exerciser is able to efficiently adjust the amount of resistance force applied to the carriage by repositioning their hands (or feet) from a first set of projections at a first distance to a second set of projections at a second distance from the first end of the exercise machine.

There is provided a limb exercise device comprising: a force sensor configured to determine a weight applied to the device; a sliding component configured to facilitate the sliding movement of the device along a separate surface, wherein the separate surface is a surface that is separate to the device, wherein the sliding component comprises a part of an external housing of the device; a device movement sensor configured to determine a movement of the device on the separate surface; a limb position sensor configured to determine a position, in at least one dimension, of a limb of a user positioned above or adjacent to the device; and an output device configured to output an indication in dependence on a signal from at least one of: the force sensor, the device movement sensor and the limb position sensor.

Embodiments of the present invention comprise a 4-wheeled resistance training device in the form of a box, wherein a user may add weights to the inside or to the top of the box to increase the resistance provided to the user. The wheels may be connected to the box by one or more threaded axles, each threaded axle existing as two or more parts. Rotation of the threaded axles may power a generator, which may power a light system comprising one or more lights. The light system may provide visual feedback to a user by changing the color and/or intensity of the one or more lights depending on multiple factors. Further embodiments of the invention may comprise a battery for storing energy generated by the generator. Embodiments of the invention may also comprise the ability to store data about a user's workout.

Accessory systems configured to convert motion from a given exercise device into computer readable instructions for a given general-purpose computer. The accessory systems include a microcontroller and a sensor. The microcontroller is in data communication with the given general-purpose computer. The sensor is in data communication with the microcontroller and mounted in a position to monitor the given exercise device. The sensor is configured to detect motion of the given exercise device and to send motion data to the microcontroller. The microcontroller is programed with computer executable instructions to convert the motion data into computer readable instructions for the given general-purpose computer. In some examples, the accessory system includes a magnet, a first supplementary input, a second supplementary input, and/or a user input device.

A rowing exercise assembly includes a pair of elevation units that is each positionable at a selected point between a minimum elevation and a maximum elevation. A rowing machine is coupled between each of the elevation units thereby facilitating the rowing machine to be positionable at a variety of horizontal angles. In this way the elevation units enhance rowing exercises. A pair of cables is coupled to a resistance unit. A pair of handles is respectively coupled to the pair of cables and each of the handles may be gripped for performing the rowing exercises. A control is positioned proximate to the rowing machine and each of the elevation units is electrically coupled to the control. Moreover, the control actuates each of the elevation units to be positioned at the selected point between the minimum and maximum elevations.

An exercise machine tension device securing system for safely and efficiently securing selectable biasing members to an exercise machine. The exercise machine tension device securing system generally includes an exercise machine including a frame and a carriage movably positioned on the frame. A plurality of tension devices may be connected to the frame at one end; with the other end being removably connected to the carriage by a selection device. The selection device may include a plurality of slots for removably receiving one or more of the tension devices to secure the tension devices selectively to the carriage. A securing member movably connected to the selection device includes projections adapted to selectively enclose the slots so as to secure the tension devices within the slots of the selection device.

A pilates reformer machine has a frame with a longitudinal central extruded spine (2) extending between a first support member (4a, 4b) and a second support member (6a, 6b), a carriage (8) supporting a platform (9) moveable along the spine, at least one retention spring housed within the spine and attached to the carriage, the at least one retention spring being selectively attachable to the frame by buttons (12), the carriage being provided with sides that wrap around sides of the spine and engage with an underneath of the spine, the carriage further including a plurality of wheels receivable within tracks formed within the central spine. A leg exerciser (30) and foot bar (20) may be included in the machine.

An exercise machine with a slidable carriage and accessories providing for a plurality of exerciser positioning surfaces and gripping handles. The exercise machine generally includes one or more lifting handles for raising or lowering either end of the exercise machine with respect to a ground surface. The exercise machine may also include a plurality of wheels each including a ridge adapted to engage with a corresponding groove in a track of the exercise machine. The exercise machine may also include a handle including a pair of arms which are positioned at a distance just greater than a width of the carriage.