A sports training device includes a stand, pivot axis, elements for a person training to apply force, and load device for creating an adjustable load. The load device includes weights and a U-shaped guide acting to protect against unauthorized removal of the weights, one end of which guide is connected via a bracket to the pivot axis, which is secured to the stand. The pivot plane of the load device is directed perpendicular or parallel or at an angle to a support surface. The center of mass of the load device is shifted, in the presence of even a minimal load, left or right from the pivot axis or coincides with the pivot axis. The elements for a person training to apply force are installed, relative to the load device, at a given height from the support surface in accordance with the direction of force from the person training and in accordance with the group of muscles receiving the load.

A resistance component configured for imparting a resistive force to a connected exercise component is provided. The device includes a frame pivotally supporting a selection arm which has a weight operatively connected to the selection arm by a pin arm. The weight imparts a force resisting rotation of the selection arm by a flexible member engaged with the exercise component. Adjusting the engagement of one end of the pin arm to an arched engagement path along the selection arm adjusts mechanical advantage and the resistive force.

A weight arm assembly for use with a weight lifting rack is provided, the weight arm assembly including a mounting bracket configured to be attached to a vertical surface in a fixed position, an arm mount configured to be coupled to the mounting bracket so as to be pivotable about a first axis, a stop member coupled to the arm mount and configured to move between an engaged position to prevent pivoting of the arm mount through interaction with the mounting bracket, and a disengaged position to allow pivoting of the arm mount, and a weight arm configured to be coupled to the arm mount, proximate a first end of the weight arm, so as to be pivotable about a second axis substantially orthogonal to the first axis.

An adjustable carriage assembly is configured to be mounted on a frame member of a weight rack and includes a moveable carriage with a plurality of rollers that engage the frame member, as well as a connection structure for connection of an articulating implement. A releasable pin is mounted on the carriage proximate to a rear of the carriage and has an arm configured for engagement to move the releasable pin. The releasable pin is moveable by axial translation between a locked position and an unlocked position to selectively engage the frame member to lock the carriage in position or permit movement of the carriage. A removable pin may be removably received through a pin hole in the carriage to extend through the passage in a direction perpendicular to a direction of axial translation of the releasable pin, to engage the frame member to prevent movement of the carriage.

A mountable arm assembly for fitness equipment, comprises two arm members and a connector for pivot connection of the two arm members. The two arm members respectively provide a plurality of assembly portions for length adjustment of the tension arm. The connector is formed with a pivot connection portion and a plurality of eccentric positioning portions. Specifically, an adjustable disposing angle is formed between the two arm members, and the two arm members set the disposing angle through the one the eccentric positioning portions. The arm assembly can be mounted on fitness equipment and can swing back and forth through the pivot connection portion. The users can select one assembly portion on each of the two arm members for required tension arm lengths and add an applied force and a resistance force respectively on the two assembly portions.

A workout device that has an arcuate body having first and second ends, and one or more attachment points extending through the body, each attachment point for releasably attaching a load and for releasably attaching an anchor to suspend the workout device.

A resistance component configured for imparting a resistive force to a connected exercise component is provided. The device includes a frame pivotally supporting a selection arm which has a weight operatively connected to the selection arm by a pin arm. The weight imparts a force resisting rotation of the selection arm by a flexible member engaged with the exercise component. Adjusting the engagement of one end of the pin arm to an arched engagement path along the selection arm adjusts mechanical advantage and the resistive force.

Disclosed are various approaches for determining the maximum oxygen consumption of a person, also known as maximum aerobic capacity or VO.sub.2 Max. A person is positioned on a treadmill. Attached to the person is a harness configured to apply a horizontal force to the person. A work rate for the person can be calculated based at least in part on the magnitude of the horizontal force applied by the harness and the velocity of the belt. The maximum oxygen consumption for the person can then be calculated based at least in part on the previously calculated work rate.

The present invention relates to a machine providing a compound leg exercise known as a squat. The purpose of the invention is to provide rotational resistance to the muscles and joints in a compound exercise. The apparatus uses a cable connecting weights to a cam; the cam converts linear resistance to rotational resistance transferred to a driven gear, and then to a second axis and reversed by use of a drive gear meshed to the driven gear. Both gears are aligned to the joints involved in the exercise. Connected to the drive gear is a lever and footplate the user pushes against. The resulting resistance is perpendicular to the direction of force applied by the muscles and joints, while the feet move in a straight line. The present invention can be applied to compound exercises for the upper or lower body in a variety of different embodiments.

A workout machine adapted to be used with a smart device with built-in accelerometers and an app. It has a deck movable relative to its base and a lifting gear assembly operationally using a cable via a pulley to a lifting handle. A user location pivot arm is fixed to the deck, and a screen stand extends from the deck, where the user location pivot arm and screen stand are pivotably attached to a screen platform that can hold the smart device during a workout. The user's position on the deck can indicate the resistance of the exercise based on a percentage of the user's own weight as lifted with each repetition. The fulcrum concept combined with a user location feature allow an app of the smart device to support and analyze a workout.