364 results about "Leg press" patented technology

An exercise machine composed of a frame, a first four bar linkage system, a second four bar linkage system, and a means for transferring an incident force from the legs of a user is disclosed. The first four bar linkage system is operably mounted on the frame and operably connects the transferring means to the frame to allow for back and forth movement of the transferring means along a path of travel about an instantaneously changing axis of rotation. The second four bar linkage system operably engages the first four bar linkage system. Either or both of the first four bar linkage system and the second four bar linkage system are operably connected to a resistance means, whereby the second four bar linkage system operates in conjunction with the first four bar linkage system and the resistance means to create a mechanical disadvantage to the user.

A standing single leg press exercise machine is comprised of a single movable step arranged to move up and down along an inclined path for exercising only one leg at a time. A resistance mechanism is connected to the movable step for providing resistance to movement. Two stationary steps are positioned on either side of the bottom position of the movable step. Hand rails are also positioned on either side of movable step. A shoulder pad is positioned above the movable step. A method for using the leg press is comprised of standing on one of the stationary steps with a stationary leg, and repeatedly operating the movable step up and down with an active leg. The active leg is exercised until it is tired, and the legs are switched to exercise the previously stationary leg while the previously active leg is rested.

The invention relates to a landing leg pressing, unfolding and locking device of a lander, which belongs to the landing leg unfolding and locking mechanism. The device comprises an outer support cylinder (1) and an inner support cylinder (6); the top part of the inner support cylinder (6) is provided with a top inner cylinder cover (14), a mounting chamber is formed between the top part of the inner support cylinder (6) and the top inner cylinder cover (14); a stepper motor (12) is arranged above the top inner cylinder cover (14) and is connected with the top part of the outer support cylinder (1) through an axial spring (13); a turntable (11) is arranged on a motor shaft and is connected with a bolt (2) through a radial spring (4) which penetrates through a locking spring chamber (16); and the outer support cylinder (1) is also provided with an upper locking hole (3) which is matched with the bolt (2) and is used for locking the inner support cylinder before the landing leg is unfolded and a lower locking hole (7) which is matched with the bolt (2) and is used for locking the inner support cylinder after the landing leg is unfolded. The invention has the advantages of simple mechanism and high reliability.

An inclined leg press machine includes: a frame that includes a base configured to rest on an underlying surface and a pair of inclined guides; a seat assembly attached to the frame; a weight sled slidably engaged with the guides along a travel path that is substantially parallel with the guides, the weight sled operatively coupled with a resistance source; and a foot platform assembly movable with the weight sled, the foot platform assembly having a foot platform that receives the feet of an exerciser. The weight sled is movable along the travel path between flexed and extended positions. The foot platform rotates relative to the underlying surface as the weight sled moves between the flexed and extended positions so that, when the exerciser's feet are placed flat on the foot platform, the exerciser's feet and tibiae are maintained at an angle of approximately ninety degrees.

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.

An user-actuated anterior shoulder stretching device (10) includes a pair of swing arms (32) which are pivoted rearwardly in response to a leg press motion being applied to a sliding footrest assembly (18).

A compact, portable, lightweight, easily transportable leg press exercise apparatus to simulate both exercise and the daily activity of sitting in a microgravity environment. The exercise portion of the apparatus creates stress on the lower extremities by supplying a variable resistance to a reciprocating foot pedal by way of a coil spring and damper system acting through a four-bar linkage. The chair is adjustable in angle to fit each user and to simulate a force that is two-thirds of body weight. By combining resistance exercise and lower body negative pressure with the LBNP leg press exercise apparatus, the users experience one or more times body weight (BW) in stress on their musculoskeletal, cardiovascular and nervous systems. By achieving one times BW or greater (artificial gravity) during exercise and two-thirds BW during sitting, the gap between the precondition and post condition syndrome will become smaller.

The present invention relates to a comprehensive fitness equipment leg press allows a user to do a weight training leg press exercise for training a lower body from 10 kg to 200 kg by sitting on a bench pushing the footrest included in the footrest frame, which moves back and forth smoothly along a central frame for adjusting weight of the footrest frame. The comprehensive fitness equipment leg press comprises a hydraulic cylinder formed on a lower end of the bench without using 15 10 kg weights and a hydraulic cylinder rod connection installed on a body of a weight adjusting bar using the principle of the lever for adjusting weight of the footrest of the footrest frame.

The invention discloses a training aiding device for a folk dancer. The device comprises a bottom plate, wherein a lifting box is welded to the bottom plate, the lifting box is internally provided with a cavity, the upper wall of the lifting box is symmetrically provided with two first grooves, the bottom plate is provided with a first servo motor by using a bolt, and an output shaft of the firstservo motor is in interference fit connection with a first gear by using a flat key. The training aiding device for the folk dancer has the advantages that the height of an elastic plastic plate is adjustable, so that the elastic plastic plate is suitable for various heights of dance practicers to practice back bend, during the back bend, the elastic plastic plate rotates along with a straight rod, thereby providing more convenience for the dance practicers to perform back bend; the radius of the elastic plastic plate is adjustable, so that the elastic plastic plate is more suitable for dancepracticers of various back bend levels, and the universality is increased. A same dance practicer has different heights of leg pressing in different stages of practicing pressing legs; the heights ofleg pressing of different dance practicers are also different, the height of a leg pressing rod is adjustable so that the leg pressing is suitable for more dance practicers, thereby avoiding the trouble that the dance practicers set multiple leg pressing devices with different heights.

A leg press machine is described. The leg press machine includes: a cable resistance element adapted to allow for a resistance path that is at least partly defined by a user; a user support adapted to move along a movement path as a leg press is performed; and a load including a set of plates that may be selectively coupled to the cable resistance element. A leg curl machine includes: a cable resistance element adapted to allow for a resistance path that is at least partly defined by a user; a user support adapted to move along a movement path as a leg curl is performed; and a load including a set of plates that may be selectively coupled to the cable resistance element. A leg extension machine includes: a cable resistance element; a user support adapted to move along a path; and a load including a set of plates.

Weightlifting system which is particularly suitable for doing leg presses having an inclined frame, a foot support near the lower end of the inclined frame for receiving the feet of an exerciser, a carriage adapted for receiving the back of the exerciser and being driven in an upward direction along the frame by extension of the legs of the exerciser, a weight bar extending laterally from each side of the carriage, a pair of weight stands positioned to the sides of the frame, and a plurality of weight plates disposed on each of the stands for selective attachment to the bar extending from each side of the carriage.

The invention relates to a leg press device, in particular to a leg press device for practicing dance. The leg press device for practicing dance enables people to convenientlycontrol the intensity, injury to people isavoided, andlegs can be fixed. According to the technical implement scheme, the leg press device for practicing dancecomprises a supporting frame, a seat plate, a first soft cushion, a fixed sliding block, a sliding plate, a flat rack, a rotating rod, a gear, a first bearing seat , a lower bearing seat, a connecting plate, a baffle and the like; theseat plate is arranged at the top of the supporting frame, and the first soft cushionis arranged in the middle of the top of the seat plate; and the fixed sliding blocksare arranged on the left sideand right side of the supporting frame, and the sliding plates are slidably arranged at the tops ofthe fixed sliding blocks on theleftside and the right side. By arranging ashifting device,people can control the leg press device by themselves or by others, peoplecan conveniently press the legs, and even one person can perform leg press exercise, so that people can control the intensity of the exercise easily.