A tire exercise system has a tire having an interior portion covered with an inner tire cover. At least four shoulder strap attachment points are attached to the tire and configured to secure a right and left shoulder strap. At least two handles are attached to the tire and configured to accommodate human hands. At least two anchors are attached to the tire and configured to accommodate a rope system. A waist harness includes a waist belt. An anchor is attached to the waist belt. A rope system is attached to the tire and the waist harness. The rope system includes a first carabiner attached to a bungee cord, which can then be attached to the tire. A ring is attached to the bungee cord. A rope is attached to the ring. A second carabiner is attached to the rope, which can then be attached to the waist harness.

An exercise machine that enables a user to exercise extensor and flexor muscles. The exercise machine includes a base with a rolling cylinder configured to roll from a front end of the base to a rear end of the base. The exercise machine further includes a slant board resting on the rolling cylinder.

A multiple position adjustable exercise device includes a first plate, a second plate and an elastic member. The second plate is pivotally connected with the first plate. The elastic member is disposed between the first plate and the second plate, and when the second plate rotates relative to the first plate, the elastic member is twisted for providing an elastic recovering force. An initial position of the second plate relative to the first plate is adjustable for adjusting the elastic recovering force.

An exercise system includes a handle having a shaft, a head, a spindle, and a loop. The shaft extends from a first end to a second end. The head has a top, a bottom, a front, and a rear, the top opposite the bottom, the front opposite the rear, the bottom of the head affixed to the second end of the shaft. The spindle has a ring and is positioned at the front of the head with the spindle rotatably supported upon the head. The loop is affixed to the top of the head. The exercise system includes one or more elastic exercise cords configured to selectively connect to the loop or the ring. The exercise system may include one or more kettleballs configured to selectively connect to the one or more elastic exercise cords. The kettleballs and/or elastic exercise cords may be moved in a circular motion.

A barbell assembly includes a main bar having a pair of opposing, internally threaded ends and a central collar. A longer extension bar includes an externally threaded post at a first end and a cap at the opposing end. A weight disc with a central aperture is slidable onto either the main bar or the extension bar depending upon an exercise to be performed. The main bar and weight disc can be used independently to perform a myriad of resistance exercises somewhat similar to a conventional dumbbell. Alternatively, the threaded post on the extension bar can be secured to either end of the main bar to allow a user to perform various exercises that require an elongated implement having a weighted end.

A barbell assembly includes a main bar having a pair of opposing, internally threaded ends and a central collar. A longer extension bar includes an externally threaded post at a first end and a cap at the opposing end. A weight disc with a central aperture is slidable onto either the main bar or the extension bar depending upon an exercise to be performed. The main bar and weight disc can be used independently to perform a myriad of resistance exercises somewhat similar to a conventional dumbbell. Alternatively, the threaded post on the extension bar can be secured to either end of the main bar to allow a user to perform various exercises that require an elongated implement having a weighted end.

A portable and kinetic motion resistance upper body invention that can be used for a variety of exercises. This invention combines dial tension adjustment clutch sheaves, a variable linear tract bearing and a one piece resistance shock-cord, together these core components achieve a unique minimal impact work-out. The multi-motion and changeable adjustments for this invention, result in a wide variety of muscular stimulation and therapeutic exercises that are non-existent in the fitness and health industry. The outcome of the mechanism can be customized for a particular sport requirement or physio and other therapeutic restorations, or even for case specific industrial and robotic counter-balancing controls. This invention is can also be used as a lift-assist device.

A non-limiting example training instrument comprises a hollow main body formed of an aluminum alloy. The main body is constituted by two gripping portions opposite to each other with a space therebetween and a coupling portion coupling the two gripping portions. A load sensor is arranged in the coupling portion inside the main body. The load sensor is a load cell, a strain gauge affixed to an interior of the main body, and a part of the main body to which the strain gauge is affixed functions as a strain body. Therefore, if a user applies a force so as to bring the two gripping portions close to each other or a force so as to move the two gripping portions away from each other, a load thereof is detected by the load sensor.

The invention relates to a machine for sports training, which comprises a frame pivotably connected to a lever actuated by a user's arms, the at least one lever being connected to two main coupling elements situated parallel to each other, such that when the elements move, they describe an identical path at the same time, transmitting the movement of the at least one lever to resistance means. The machine provides continuous resistance to the actuation of the lever by the user, and a moment of inertia that prevents stops and jerks at the end of the stroke of the lever. The machine is provided with means for supporting the user, such as a platform, solidly fixed to the frame such that while the user trains the upper body, he or she can also train the lower body, at will, by performing exercises on the platform.

A tire exercise system has a tire having an interior portion covered with an inner tire cover. At least four shoulder strap attachment points are attached to the tire and configured to secure a right and left shoulder strap. At least two handles are attached to the tire and configured to accommodate human hands. At least two anchors are attached to the tire and configured to accommodate a rope system. A waist harness includes a waist belt. An anchor is attached to the waist belt. A rope system is attached to the tire and the waist harness. The rope system includes a first carabiner attached to a bungee cord, which can then be attached to the tire. A ring is attached to the bungee cord. A rope is attached to the ring. A second carabiner is attached to the rope, which can then be attached to the waist harness.