Abstract: A lever arm and method of use are disclosed herein. An example lever arm includes a translatable positioning assembly having a handle assembly having a trigger lock, the handle assembly being configured to engage with a frame member of a rack in such a way that the handle assembly can be selectively positioned along the frame member. The trigger lock is configured to engage with one of a first plurality of apertures of the frame member when a desired position for the translatable positioning assembly is selected. An armature that is pivotably coupled to the handle assembly in such a way that the armature can pivot in a first plane. The armature is configured to pivot in a second plane. The lever arm includes a first guide that is rotatably coupled to an end of the armature to allow the first guide to swivel.

Abstract: An inclinable bench system for exercise that is attachable to a wall with a mounting bracket, is extendable outwardly from the wall when in use, and is retractable towards the wall when not in use. The inclinable bench generally includes a torso portion and a seat portion on a support segment, latches for selectively latching the bench to the support segment in a first position with the torso and seat portions parallel for extension and retraction, latches for latching the bench in a plurality of selected second positions with the torso and seat portions inclined, and latch operators for operating the latches for the bench to move between the first and second positions. The seat portion is movably supported on a two-level rail and as the bench is moved between the first and second positions the seat portion is automatically inclined.

Abstract: A support attachment apparatus for attachment to a weight rack, comprising a main body including an attachment portion comprising a pin hole and at least one adjustment aperture and, a support portion comprising a support pad.

Abstract: A combination exercise assembly for performing aerobic and strength training exercises includes a base, which can be positioned on a substantially horizontal surface. A stationary bicycle is engaged to the base so that a user positioned on a seat of the stationary bicycle faces a first end of the base. A lat pulldown machine engaged to the base proximate to a second end of the base is positioned for engagement by the user positioned on the seat of the stationary bicycle. The stationary bicycle is pedaled to perform aerobic exercise and the lat pulldown machine resists a pulldown motion to perform strength training exercises.

Abstract: The invention concerns exercise apparatus having a weight source (18) operably connected to a plurality of manual actuators (28, 32) by a cable and pulley system. The cable and pulley system (12) has a plurality of pulley wheels (16), a supporting frame (10) for the weight source (18) and pulley wheels (16), and a cable (22) defining a force path from the weight source (18) over the pulley wheels (16). The pulley wheels (16) and frame (10) are provided in a common plane with the weight source (18) at least when the exercise apparatus is not in use. The manual actuators (28, 32) are provided at spaced locations along the path defined by the cable (22) and are actuatable in a direction away from the common plane when in use. The frame (10) may supported in an upright orientation for use by a support structure, e.g. a wall, and may occupy a minimal space/depth.

Abstract: A portable ski accessory that converts a portable resistance device into a ski-type exercise machine is presented. The ski accessory contains a hanger chassis, a mounting element, a track, a cord, a handle, and a connection element. The hanger chassis contains a cord input portion and a cord output portion. The cord input portion is positioned terminally opposite to the cord output portion along the hanger chassis. The mounting element is connected adjacent to the hanger chassis. The track is positioned within the hanger chassis. The track traverses from the cord input portion to the cord output portion. The cord traverses through the track. The handle is connected to the cord. The connection element is connected to the cord, opposite to the handle.

Abstract: A weightlifting rack assembly includes a first side mount bracket having a first base connected to a first mounting region of a wall mount bracket, a first support arm extending outward from the first base, and a first receiver connected to the first support arm, a second side mount bracket having a second base connected to a second mounting region of the wall mount bracket, a second support arm extending outward from the second base, and a second receiver connected to the second support arm, and a bar connected to the first side mount bracket and the second side mount bracket and extending between the side mount brackets in a direction along the lateral width of the wall mount bracket. The bar is received in the receivers to connect the bar to the side mount brackets, and the wall mount bracket suspends the rack assembly above a ground surface.

Abstract: An exercise rack enclosure system for providing an exercise rack which is concealable within an enclosure. The exercise rack enclosure system generally includes an enclosure including an interior space. An exercise rack is pivotably connected to the enclosure within the interior space. The exercise rack is adjustable between a collapsed position, in which the exercise rack is completely positioned within the interior space of the enclosure, and an extended position, in which the exercise rack extends out of the interior space of the enclosure for use. The enclosure may optionally include one or more doors for concealing the interior space and exercise rack when not in use. Various attachments may be stored in the enclosure and removably connected to the exercise rack for performing a wide range of exercise moves.

Abstract: A weight pin for use with a stacked weight exercise machine includes a handle portion, and a shaft portion extending outwardly from the handle portion. The shaft portion is configured to be removably positioned adjacent to one or more weights of the exercise machine to selectively engage the one or more weights during use of the exercise machine. The weight pin also includes interrogation circuitry arranged relative to the handle portion, the interrogation circuitry configured to read information from the adjacent one or more weights.

Abstract: A sit-up exercise machine includes a frame, chair and system of pulleys secured to a plurality of free-weights by a cable. The chair is hinged at the back. The weights are secured in opposition to the back of the chair such that resistance is required by a user of the chair to push the back of the chair away from the seat of the chair.

Abstract: A gym tower which includes a base and a plurality of internal weights vertically stacked on the base. A frame is connected to the base and extends upward from the base to engage with the plurality of internal weights. A top plate is connected to the frame, so that the base and the plate enclose the plurality of internal weights within the frame. The tower also includes a spine is adapted to selectively engage the plurality of internal weights. A main pulley is connected to the top plate and a main cable is fed through the main pulley. The main cable is connectable to the spine at a first end and includes a connector device at a second end. The tower also includes a rod adapted to engage with the spine and to select an internal weight and is adapted to secure to external weights.

Abstract: Systems and methods for fitness tracking are provided. An exercise apparatus is in networked communication with a fitness tracking computing system. The configuration and location of movable components of the exercise apparatus is determined based on sensors. This information is provided to the fitness tracking computing system via networked communication.

Abstract: A wearable hand rehabilitation system includes a base, multiple actuating units configured to the base, hand assistive unit and multiple sheaths connected with the actuating units and the hand assistive unit. The base is composed of a cover and a base plate to create a space. The cover is provided with a perforation closed to the middle of the cover to allow every sheath to pass through the perforation, so as to connect with actuating units. When a user put on the wearable hand rehabilitation system, the user could move or rotate his arm to make his five fingers to grab something. The usage of the wearable hand rehabilitation system could evaluate the hand rehabilitation condition of the user.

Abstract: A cabinet, for storing and conveniently deploying a box-like exercise apparatus, has a small footprint, and receives and secures the exercise apparatus on the inside surface of the cabinet's front wall. The exercise apparatus may be quickly and easily deployed from its storage position upright and inside the cabinet, to its in-use position, horizontally in front of the cabinet on top of the inside wall surface, while the outside wall surface of the cabinet, in turn, rests horizontally on the floor. Overhead rods are extendable from the cabinet and securable in one or more extended positions, for use of the rods in various exercises. The cabinet may be at least temporarily secured to a wall to secure the cabinet, and also the exercise apparatus, including the overhead rods, in place during exercises. The cabinet allows a consumer to keep its fitness equipment easily accessible and ready to use.

Abstract: An adjustable exercise suspension system and related methods of use and exercise are disclosed. The system includes a length-adjustable suspension strap assembly attached at one end to a fixed overhead support structure and at an opposite end to a weight element. The strap assembly comprises a plurality of straps detachably connected together. The weight element is suspended from the overhead support structure creating a tensile force in the strap assembly establishing a taut condition. The weight element is manually movable by a user during the exercise routine along an arcuate path in a plane of stable motion while the tensile force maintains the taut condition of the strap assembly. The strap assembly advantageously provides guided and stabilized motion of the weight element for the user thereby minimizing risk of injury. The resistance force of the system is user-variable by attaching different size weight elements to the strap assembly.

Abstract: An exercise machine includes: a resistance element; a user support; a first movement element coupled to the user support, the first movement element comprising: a first column; and a first connecting element comprising a first pivot point such that the user support is able to pivot about a first axis associated with the first connecting element, wherein the first connecting element is movably coupled to the first column such that it is able to move along a first path; and a second movement element coupled to the user support, the second movement element comprising: a second column; and a second connecting element comprising a second pivot point such that the user support is able to pivot about a second axis associated with the second connecting element, wherein the second connecting element is movably coupled to the second column such that it is able to move along a second path.

Abstract: A collapsible lower body fitness apparatus is disclosed, providing enhanced gluteal muscle engagement, body stability, and range of motion. The apparatus includes a base, a frame, a line-swiveling assembly, and a gripping device that is horizontally displaced from the line-swiveling assembly's swivel axis, allowing a user to stabilize themselves in tripod posture during exercise. Thus a user can perform full range of motion for any combination of hip extension and hip abduction under resistance transmitted by a line, all from a central standing position that substantially straddles the swivel axis. This functional framework of elements can be realized through a variety of possible embodiments. While the frame provides space for leaning during exercise, it may otherwise vary in structural design. In all cases, the frame can be collapsed into a stowable position that is substantially parallel with and adjacent to the base, thereby rendering the apparatus portable and stowable.

Abstract: A lower body fitness apparatus is disclosed, which provides enhanced gluteal muscle engagement, body stability, and range of motion. The apparatus includes a base, a frame, a line-swiveling assembly, and a gripping device that is horizontally displaced from the line-swiveling assembly's swivel axis, allowing a user to stabilize themselves in tripod posture during exercise. Thus a user can perform full range of motion for any combination of hip extension and hip abduction under resistance transmitted by a line, all from a central standing position that substantially straddles the swivel axis. This functional framework of elements can be realized through a variety of possible embodiments. While the frame provides space for leaning during exercise, it may otherwise vary in structural design. The line's resistance can be generated by any means contemplated by one of ordinary skill, such as lifting weight, stretching an elastic band, bending a flexible rod, or other means.

Abstract: An exercise machine includes a weight attachment connected to a track where the weight attachment is shaped to attach to a support structure of an independent adjustable dumbbell and to carry the support structure as the weight attachment travels along the track. A cradle of the exercise machine has a trough sized to receive the independent adjustable dumbbell, and an input mechanism in communication with a selection mechanism incorporated into the exercise machine. The selection mechanism includes a selector arranged to adjust a connection of a weight set associated with the independent adjustable dumbbell, and a subset of the weight set is carried by the support structure as the weight attachment moves along the track based at least in part on an input into the input mechanism.

Abstract: Various systems, processes, and techniques may be used to achieve a wheelchair-accessible exercise system. In particular implementations, a wheelchair-accessible exercise system may allow a user to perform strength and cardiovascular exercises without having to reposition his/her wheelchair. For example, a user may perform seven different exercises without moving his/her chair, or possibly even the trunk of their body. Thus, the exercise system may provide a comprehensive workout without requiring repositioning of the wheelchair, which can be quite cumbersome to those that are mobility challenged. Moreover, the exercise system may be adjustable and safe.

Abstract: An unweighting system includes a frame having a base and a vertical bar extending therefrom. The base is configured to connect to or at least partially encircle an exercise device. A height adjustable cantilevered arm assembly is coupled to the vertical bar at a fulcrum, and the cantilevered arm assembly is configured to receive and couple to the user. A resilient member is coupled to the cantilevered arm assembly and configured to unload a portion of the user's weight while the user is coupled to the cantilevered arm assembly and exercises on the exercise device.

Abstract: A rowing exercise device in which the return force for the rowing handle is provided by the force of gravity rather than an elastic cable. The rowing exercise device includes a stationary base and a moveable frame, which rotates or slides upwardly relative to the stationary base when a pulling force is applied to the handle, and then rotates or slides back down to the initial position under the force of gravity when the pulling force is removed.

Abstract: A collapsible exercise machine includes a stationary base, a moving member, and a supporting frame. The stationary base includes a pivotally connecting portion and a first supporting portion. The moving member is pivotally connected to the pivotally connecting portion of the stationary base, can be pivoted to an extended position and a collapsed position with respect to the stationary base, and includes a second supporting portion. The supporting frame includes a third supporting portion, is fixedly connected to the stationary base, and lies under the pivotally connecting portion. When in the extended position, the stationary base and the moving member are supported by the third supporting portion as well as the first supporting portion and the second supporting portion.

Abstract: The upper body exercise device is a resistance based training device that is adapted for use by a person. Specifically, the upper body exercise device uses the weight of the exerciser to generate a counterforce that provides resistance to specific upper body exercises. The upper body exercise device comprises a frame, a first resistance system, a second resistance system, and a third resistance system.

Abstract: An exercise and massage treatment table system that includes a housing unit mounted on a vertical surface. The housing unit accepts a massage table having foldable legs, headrests, and side platforms. The massage table may be stored in the housing unit or placed in a standing position. The housing unit may also include a storage unit or an exercise unit. The exercise unit may include a pair of cable and pulley systems mounted on vertical exercise tracks. The massage table may also include rotator discs in the upper surface for added rotational action during exercise.

Abstract: An exercise machine includes a frame and a weight assembly with multiple plates moveably disposed along a vertical length of the frame. The exercise machine also includes a lifting member selectively engaged with the weight assembly, and the multiple plates each include at least one lift opening to receive the lifting member. The lifting member is oriented transverse to a plate length and to travel in a transverse direction with respect to the plate length. Further, the exercise machine includes a locking member associated with at least one plate of the multiple plates, and a selector having a first position and a second position. When the selector is in the first position, the locking member is interlocked with the lifting member. When the selector is in the second position, the locking member is disengaged from the lifting member.

Abstract: An adjustable mount pull-up bar. A first strut has a mounting plate at one end and an attachment point at the other end, with an offset between the two ends. A second strut is similarly constructed, but the offset of the first strut is a mirror image of the offset of the second strut. A bar has two attachment points to connect to either of the first and second struts. When the struts are connected to the bar in one orientation, the mounting plates at the ends of the struts are relatively closer together, and when the struts are connected to the bar in a second orientation, the mounting plates at the ends of the struts are relatively farther apart. This enables the pull-up bar to be mounted, for example, to wall studs or ceiling joists that are disposed at different distances from each other.

Abstract: A resistance exercise machine having cable and pulley linkage assemblies attached to a single weight stack or other resistance means. Each cable and pulley linkage assembly, which is independent of the other(s), can be used by one arm or leg during bilateral exercise training (that is, training in which both limbs of a pair are used to simultaneously to lift a weight or work against various resistance means). A biofeedback assembly measures and displays in real-time how much each limb of a pair is contributing to such effort.

Abstract: A housing assembly includes a plurality of hollow pipes forming a base section horizontally disposed and a support section vertically disposed with a top pipe. An operational assembly includes a plurality of block and tackle subassemblies. Each block and tackle sub assembly includes a fixed block with a plurality of upper pulleys depending from the top pipe. Each block and tackle sub assembly includes a movable tackle with a plurality of lower pulleys. Each movable tackle includes a cord with a fixed end, a movable end, and an intermediate section. The intermediate section winds back and forth between the lower pulleys and the upper pulleys. A belt has a clip attached to the movable end of each cord.

Abstract: Exercise equipment comprises a weight stack configured to oppose a given exercise motion through a cable and pulley system and an elongated connector connecting the cable to a weight stack. The elongated connector comprises a first threaded portion located proximate to the weight stack and a second portion located distal from the weight stack. The first threaded portion is engaged with the weight stack and has a diameter that is greater than a diameter of the second portion such that an operator can visually determine whether the connector is fully engaged with a threaded receptacle in the weight stack.

Abstract: An exercise apparatus comprises an incremental weight system. The incremental weight system comprises an incremental weight and an incremental weight selector. The incremental weight selector is liftable by a weight lift and has a lever movable between a lowered position and a raised position to actuate the selector between an engaged position engaging the incremental weight such that the incremental weight is liftable with a first weight by the weight lift and a disengaged position disengaged from the incremental weight such that the first weight is liftable independent of the incremental weight.

Abstract: User-manipulated exercise equipment of the type utilizing a weight-plate stack comprises a stack of weight plates, of which a user-selected portion moves as a unit along a pair of guide rods in response to an exercise movement by the user. The selected portion of the stack moves with virtually no cross-wise (i.e., lateral) shifting among the plates and virtually no friction between the moving portion of the stack and the guide rods because (1) a keystone bushing below the weight plate stack provides virtually error free alignment with the guide rods by setting the non-selected portion of the stack at a highly accurate “home” position that resets the moving stack if it has shifted laterally during movement, even if that shift is very slight, and (2) the guide rod holed in the weight plates carry bushings which align with the bushings of the adjacent weight plates to prevent the plates within the moving portion of the stack from shifting laterally with respect to each other and thereby contacting a guide rod.

Abstract: An upper body strengthening system features a generally U-shaped planar base having a vertical frame perpendicularly located in a base middle section. A seat is perpendicularly and adjustably located on a vertical frame middle along with a cushioned back rest. The system features a first arm having a first arm first end pivotally located on a vertical frame first side and a second arm having a second arm first end pivotally located on a vertical frame second side. A first palm plate is located offset from a first arm inside surface and a second palm plate is located offset from the second arm inside surface. A plurality of weight components is located close to a vertical frame bottom. The plurality of weight components is stackably located on a cable assembly (pulley system) that traverses a weight component rack and is connected to the first arm, and the second arm.

Abstract: Exercise apparatus and method including a slidable handle assembly. In one embodiment, a support arm structure, pivotally mounted on an upright frame, enables alternatively fixed positioning of a rod at various vertical distances above a ground plane, in a generally horizontal orientation. A pair of left and right handle bracket assemblies are sildably mounted on the rod, and can be engaged by a user for moving the slidable handle bracket assembly across the rod while overcoming a resistance established by an adjustable resistance mechanism (e.g., weight stack). In one embodiment, the apparatus and method are used for developing muscles used during trunk rotation of a user in a standing position.

Abstract: A fitness equipment unit comprises a member rotatable about an axis and a source of resistance against rotation of the member. Rotation of the member is facilitated by pulling on a first end of the line while the other end of the line is stationary, pulling on a second end of the line while the first end is stationary or concurrently pulling on both the first end and the second end of the line.

Abstract: A weight stack for an exercise machine may include one or more primary and secondary load elements that are selectively joined to a weight carriage. The load elements may be supported from below by one or more support beams and positioned at spaced apart locations on the support beam when the weight carriage is located at its rest position or when the load elements are not joined to the weight carriage during an exercise. The load elements may include engagement surfaces that engage the beam either directly by contacting the beam or indirectly via a divider structure positioned between the load elements and the beam. For some load elements, the engagement surfaces define a portion of a slot in the load element. The exercise machine may further include a single guide pole that constrains the weight carriage to move substantially linearly and vertically relative to the exercise machine's support frame.

Abstract: An apparatus for performing an exercise against a resistance mechanism comprised of one or more incremental resistance members, the apparatus comprising: a frame; a handle mounted to the frame and interconnected to the resistance mechanism via a cable; a traveler having a selected resistance force; a stop mechanism adjustably positionable on the rail at one or more selectable stop positions; wherein the cable is selectively interconnectable to one or more of the resistance members.

Abstract: The current invention is an exercise apparatus that relates to the field of exercise. The apparatus is a freestanding machine with the primary purpose of exercising the lower abdominal muscles, although other muscle groups may be exercised secondarily. The primary muscles targeted include the rectus abdominis and the tendinous inscriptions. The following muscles may be exercised secondarily while either engaged in lower abdominal exercises or while performing exercises specific to each muscle group: the tensor fasciae, rectus femoris and the vastus lateralis; the biceps femoris, adductor magnus, semitendinosus gracillis and semimembranosus; the gluteus medialis and the gluteus maximus; thoracolumbar fascia and the erector spinae, triceps brachii.

Abstract: An exercise apparatus for performing a wide range of full body motions against cabled weight resistance by providing user-selectable arrangements of pulleys. A pulley carriage carries one or more carriage pulleys and is slidable on a vertical stanchion. Each pulley arrangement comprises the combination of a user-selectable, vertical height for the carriage pulleys together with user-selectable locations on the frame of the apparatus for attachment of a pair of hand pulleys, whereby the amount of slack in cables routed through the pulleys is adjustable by varying the height of the carriage pulleys.

Abstract: Embodiments of a user-adjustable resistance mechanism, and embodiments of an exercise apparatus employing such a user-adjustable resistance mechanism, are provided. In one embodiment, the exercise apparatus includes a support structure, a user-manipulated element movably coupled to the support structure and configured to be moved by a user during the performance of an exercise in opposition to an output resistance, and a user-adjustable resistance mechanism. The user-adjustable resistance mechanism includes, in turn, an input resistance assembly and a lever assembly comprising a first plurality of levers rotatably coupled in series between the user-manipulated element and the support structure. The input resistance assembly is configured to be selectively coupled by a user to the lever assembly at any one of a plurality of locations to determine the cumulative load arm length of the first plurality of levers and the output resistance opposing movement of the user-manipulated element.

Abstract: Exercise apparatus and method with selectively variable stabilization enabling a user to progressively increase his/her core body muscular strength. In various embodiments, the exercise apparatus includes a resistance cabling system providing a user defined line of motion, and a partial stabilizer pad being adjustably positionable offset from the line of motion, wherein the user's core body is positionable against the pad and required to resist the torque created by the offset. The user can progressively increase the distance between the line of motion and partial stabilizer pad, in order to progressively increase the force which the user's core body must resist to maintain an upright stature. In this way, the user can progressively, over time, increase his or her core body strength.

Abstract: A multifunctional exercise machine includes carriages associated with resistance. Cable arm assemblies are mounted on the machine for use in performing desired exercises using the carriages and/or resistance. At least one of the cable arm assemblies is rotatable in a generally horizontal plane and includes arm segments, where one arm segment is rotatable relative to the other arm segment in a generally vertical plane. The machine also includes a vertically adjustable monolift assembly having arms for supporting a barbell in the machine, where the arms are adjustable between multiple different rotatable positions as well as in a direction generally parallel to longitudinal axes of the arms. A bench is provided that can be docked in the machine, and that includes a telescoping support for providing added stability to the bench when desired. A spotting assembly is also provided for use in catching barbells at desired locations in the machine.

Abstract: Exercise apparatus and method including a slidable handle assembly. In one embodiment, a support arm structure, pivotally mounted on an upright frame, enables alternatively fixed positioning of a rod at various vertical distances above a ground plane, in a generally horizontal orientation. A pair of left and right handle bracket assemblies are sildably mounted on the rod, and can be engaged by a user for moving the slidable handle bracket assembly across the rod while overcoming a resistance established by an adjustable resistance mechanism (e.g., weight stack). In one embodiment, the apparatus and method are used for developing muscles used during trunk rotation of a user in a standing position.

Abstract: Weight lifting machines and methods are described including angularly adjustable leg press unit and hack squat unit whereby the user may quickly change between any desired angular orientation of the units relative to the floor.

Abstract: A resistance exercise machine having cable and pulley linkage assemblies attached to a single weight stack or other resistance means. Each cable and pulley linkage assembly, which is independent of the other(s), can be used by one arm or leg during bilateral exercise training (that is, training in which both limbs of a pair are used to simultaneously to lift a weight or work against various resistance means). A biofeedback assembly measures and displays in real-time how much each limb of a pair is contributing to such effort.

Abstract: The present invention provides a new and improved article of exercise assembly. The device is adapted for attachment onto an upper portion of a doorway and is retained thereon without requiring attachment of permanent fixtures to the doorframe. The device includes a plurality of pulley wheels and a cable running therethrough. The cable is attached to a weight on a first end and a handle on a second end. The cable facilitates user exercises by raising or lowering the weights when a user pulls the handle and attached cable downward. The assembly is capable of supporting weighted plates, thereby providing resistance variety. Individuals can use the assembly at a variety of positions to exercise different muscles of the body.

Abstract: An exercise apparatus includes a frame with a pair of vertical guides. A carriage is slidably carried on each of the guides. Each of the carriages has a locking mechanism to lock the carriage at a selected vertical position and a release to disengage the locking mechanism. A horizontal exercise bar is slidably carried on guide rods. First and second cables are coupled to a selectable exercise resistance, each of the cables having an end selectively coupled to either the respective carriage or to a respective bracket at the end of the exercise bar. Secondary brackets on the exercise bar are configured to engage respective ones of the carriage releases and grab the carriage so as to selectively engage and disengage the locking mechanisms upon axial rotation of the exercise bar and raise and lower the carriages with the exercise bar.

Abstract: In an embodiment, a portable pulley training system includes a cable having a first end and a second end, a first handle adapted to the first end of the cable to enable a first user to control movement of the cable, the second end of the cable configured to be coupled to a resistance element, a pivot pulley to be moveably adapted about the cable at a first location between the ends, an anchor pulley to be moveably adapted about the cable at a second location between the first location and the second end, a first retention member associated with the pivot pulley to control positioning of the pivot pulley, the first retention member configured to be controlled by a second user, and a second retention member associated with the anchor pulley to control positioning of the anchor pulley with respect to an anchor point.

Abstract: A freestanding exercise apparatus comprises a frame, a right door, a left door, and an exercise resistance source. The frame defines a sagittal plane dividing the frame into a left half and a right half with anterior and posterior ends. The right door is pivotally attached to the right half of the frame proximate the anterior end of the frame for pivoting about a right pivot axis. The left door is pivotally attached to the left half of the frame proximate the anterior end of the frame for pivoting about a left pivot axis. The exercise resistance source is connected to the frame. The frame, right pivot axis, and left pivot axis are configured and arranged such that the angle formed at the intersection of a first plane defined by the right pivot axis and the posterior end of the right half of the frame and a second plane defined by the left pivot axis and the posterior end of the left half of the frame is less than 90°.

Abstract: An exercise device (100) comprises a frame (120) and a resistance component (130) coupled to the frame (1 20). The exercise device (100) further comprises a cable (140) coupled to the resistance component (130) and supported by the frame (120), configured to transmit a force from motion end (142) of the cable (140) to the resistance component (130). The exercise device (100) also comprises a pulley system (150) movably coupled to the frame (120) along a track (124), the pulley system (150) supporting the cable (140) as the cable (140) transmits the force to the resistance component (130), the pulley system (150) configured to be reversibly fixed in position relative to the frame (120). The pulley system (150) includes a first pulley 124 member (152) and a second pulley member (156), the second pulley member (156) being removably attachable to the first pulley member (152) such that at least one of the first pulley member (152) and second pulley members (156) can be independently moved along the track (124).