The present invention relates to forearm fitness equipment having a first handlebar and a second handlebar which are arranged in a longitudinal direction. The first handlebar includes a twist guide part and a first spiral inclined surface formed on an end surface of one side of the twist guide part. The second handle bar includes a second spiral inclined surface on an end surface, which comes into contact with the first spiral inclined surface. The first and second spiral inclined surfaces extend spirally respective in an opposite rotational direction to each other. A spring is configured to provide an elastic force in a direction in which the first spiral inclined surface and the second spiral inclined surface come into contact with each other.

A fitness device contains a strap, a handle, and a plate. The strap is substantially inelastic and flexible. The plate is substantially rigid. The handle at least partially envelopes the strap. A method of exercising with such a fitness device is also described herein. Other fitness devices and other methods of use are also described herein.

A muscle strengthening system is provided having a functional core endurance training device and a pair of rolling blocks for supporting the functional core endurance training device. Each rolling block in the pair of rolling blocks includes an elongated opening for receiving a wheel of the functional core endurance training device. Additionally, each rolling block in the pair of rolling blocks includes a pair of rollers, a stabilizer and a bumper guard for grounding the surface of the wheels of the functional core endurance training device allowing the wheels to spin with increased intensity. Optionally, an individual may utilize a stationary foot pedestal or a wheeled foot pedestal that provides for both the strengthening of the muscles of the individual while simultaneously stimulating an endurance building effect on the muscular and fascial systems of the body, all of which is achieved with minimal to no impact/pounding on the joints.

Embodiments of a strength training apparatus and related methods are provided. In one embodiment, a strength training apparatus may include a tower, a first arm and a second arm each pivotally coupled with the tower and each being configured to be selectively positionable independent of each other at multiple angles relative to each other, a first pulley coupled to an end of the first arm, a first cable extending through the first arm and the first pulley, a second pulley coupled to an end of the second arm, a second cable extending through the second arm and the second pulley, a magnetic mechanism coupled to the first cable and the second cable and configured to provide multiple levels of resistance to a user pulling on the first cable and/or the second cable, and a control panel located on the tower.

An endless rope trainer that includes an upright frame, a drive roller supported a distance above ground on the frame, an endless rope entrained around the drive roller, and a means of applying resistance to rotation of the drive roller. A pair of guide rollers are provided proximate the drive roller. The guide rollers pivot together as a unit about the axis of the drive roller independently of the drive roller for maintaining a constant wrap angle of contact of the endless rope on the drive roller regardless of pull angle on the endless rope.

A push-up exercise apparatus includes two base seats pivotable relative to each other about a vertical axis, and two handgrips respectively disposed on the base seats. Each base seat includes a connecting body. The connecting bodies of the base seats are disposed one above the other and are rotatable relative to each other about the vertical axis. A retaining mechanism includes a rotating cap rotatably disposed on an upper one of the connecting bodies, an elastic member disposed between the connecting bodies, and at least one retaining unit including first and second retaining members respectively disposed on the rotating cap and a lower connecting body and engaged with each other.

The present invention relates to forearm fitness equipment having a first handlebar and a second handlebar which are arranged in a longitudinal direction. The first handlebar includes a twist guide part and a first spiral inclined surface formed on an end surface of one side of the twist guide part. The second handle bar includes a second spiral inclined surface on an end surface, which comes into contact with the first spiral inclined surface. The first and second spiral inclined surfaces extend spirally respective in an opposite rotational direction to each other. A spring is configured to provide an elastic force in a direction in which the first spiral inclined surface and the second spiral inclined surface come into contact with each other.

Provided is a chest expander including a pair of operational arms having upper ends rotatably coupled to a head and moving to approach or be spaced apart from each other and a pair of gas springs disposed crosswise between the pair of operational arms. In the operational arm, a longitudinal hole configured to guide one end of the gas spring to move are formed. A guide coupled to the one end of the gas spring are arranged in the longitudinal holes. A Holding device holds the guide at a selected position. Intensity of elastic force provided by the gas spring is adjustable by adjusting a position of the one end of the gas spring.

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.

A method is disclosed for using an artificial intelligence engine to interact with a user of an exercise device during an exercise session. The method includes generating, by the artificial intelligence engine, a machine learning model trained to receive data as input, and based on the data, providing an output. While a user performs an exercise using the exercise device, the method includes receiving the data from an input peripheral of a computing device associated with the user. Based on the data being received from the input peripheral, the method includes determining, via the machine learning model, the output to control an aspect of the exercise device.