Disclosed herein is a modular kettle-bell shaped dumbbell having separate, equally weighted dumbbell portions that may optionally be used separately or may be temporarily joined together to form a single kettle-bell shaped dumbbell of twice the weight of the separate, equally weighted dumbbell portions. Each of the separate dumbbell portions may include one part of a two-piece connection system configured to temporarily lock the separate dumbbell portions to one another, with such connectors being configured such that upon achieving a fully engaged locking connection, the exteriors of each body portion of the first dumbbell portion and the second dumbbell portion together form a generally spherical main body portion and an upwardly extending handle having a generally circular cross-section throughout its length.

A method and system for measuring exercise data using a plurality of wireless sensors is disclosed. The plurality of wireless sensors are attached onto or into a plurality of pieces of strength training equipment, wherein each individual wireless sensor from the plurality of wireless sensors is attached to and associated with an individual piece of strength training equipment of the plurality of pieces of strength training equipment. An individual piece of strength training equipment of the plurality of pieces of strength training equipment is selected and the wireless sensor is registered with selected piece of strength training equipment with a computing device. Strength training equipment details may be identified through the computing device.

An Internet of Thing (IoT) device includes a body with a processor, a camera and a wireless transceiver coupled to the processor.

The present invention relates to a system (S) for monitoring the weight adjustment of a dumbbell, which can be used by a user to perform a gymnastic exercise, comprising: a dumbbell (2), provided with a handle (21), having an axial development along an axis (R), able to rotate around said axis (R), clockwise and counterclockwise, and provided with a first end (211) and a second end (212), a first plurality of weights (P1), wherein each weight can be individually coupled to said first end (211), when said handle (21) rotates in one direction, and decoupled from said first end (211), when said handle (21) rotates in the opposite direction, a second plurality of weights (P2), wherein each weight can be individually coupled to said second end (212), when said handle (21) rotates in one direction, and decoupled from said second end (212), when said handle (21) rotates in the opposite direction, wherein said system (S) is characterised in that it comprises an element provided with a plurality of reflective portions (321.sub.a, b, . . . , n), in that it comprises at least one detection device (5) able to detect data coming from at least one reflective portion (321.sub.k) and able to send said data, and in that it comprises a logic control unit (U) able to receive said data sent by said at least one detection device (5) and to associate to said data a weight of said first (P1) and second (P2) plurality of weights. The present invention also relates to the method for operating such system.

“Abstract Balls” is a new product that allow an individual to engage in an effective abdominal workout while walking or running. A fitness enthusiast would simply grasp the balls on the ends of the bar and walk or run in the conventional manner. While holding the unit, the person's arms would move from side to side, opposed to moving back and forth alongside his body. This would cause him to turn his or her abdomen and torso slightly to the left and right, which would isolate and target the muscles in the abdominal region and core. Of course, since the user would be walking or running while using the “Abdomen Balls” his or her heart, metabolic, and circulation rates would all increase, which would help him or her burn calories. Of course, using “Abdomen Balls” as part of a consistent fitness regimen would help an individual develop a slimmer abdominal region and lose weight. This could lead to lower cholesterol levels, lower blood pressure, and a healthier overall lifestyle. It would also result in a more defined abdominal region. In turn, this would result in a more attractive appearance, which improves and individual's self-esteem and overall outlook on life. Since “Abdomen Balls” would help improve abdominal/core strength, it would also improve performance in a wide range of sports and fitness activities. In addition, “Abdomen Balls” would be easy to use and ideal for individuals who were just beginning a fitness program. It would allow individuals to begin exercising at a slow pace, which would not only allow for consistent results when starting a fitness program but would also prevent injuries that could slow an individuals's progress and discourage him or her from continuing an exercise program. Such a product would also eliminate the need for an individual to perform abdominal exercises such as sit-ups and crunches. This would prevent stress and strain on the lower back, which would enhance comfort and could prevent injuries.

The present invention relates to a novel fitness weight device designed to allow users to customize dumbbell weights by filling the air chambers with air. The device comprises a dumbbell-styled weight with an inflatable air chamber. The devices can be inflated via a push button. Users can inflate the dumbbell devices to a desired weight for customized workouts. Once finished, the user can activate the air release valve to compact or retract the dumbbell for storage.

A device designed to hang free weight dumbbells from the end of an elongated cylindrical lifting bar. The device is comprised of a cylindrical hollow head which is capable of sliding and hanging on to a barbell, while the openly hollow C-shaped support inferior to the neck of the device is free to safely support a free weight dumbbell during resistance training.

A set of dumbbells comprises a plurality of dumbbells of different weights with the dumbbells having a common length. A plurality of adder weights is provided with each adder weight having a cavity that is sized to receive the common length of any one of the dumbbells. Any one of the dumbbells is dropped down into the cavity of any one of the adder weights. A slide retainer is then slid into a slideway on the any one adder weight to overlie the dumbbell and secure the dumbbell to the any one adder weight. The slide retainer has a window therein to allow a user to reach through the slide retainer and grip a hand grip of the dumbbell.

The invention relates to an adjustable dumbbell and its use method. The dumbbell comprises a base and a dumbbell body, the dumbbell body comprises a handle and a bell piece, the handle is a combination of a central shaft and a handle sleeve, the handle is also connected with an indexing plate, a gear piece and a bell piece box, the ends on both sides of the central shaft are provided with a snap ring groove and a gear step from the outside to the inside, and the indexing plate is provided with a lock The bell box is connected with a bell box cover, the bell box cover is connected with a locking leaf spring and a steel ball spring, the locking leaf spring is connected with a locking leaf, and the steel ball spring is connected with a steel ball.

The present disclosure generally pertains to barbell and dumbbell support systems that allow for a user to perform exercises without requiring movement of the body of the user from the proximity of weight support assemblies when weights are in use. Weight support systems include extendable arm assemblies for the holding and positioning of barbells or dumbbells in a location conducive to performing exercises. Extendable arm assemblies automatically retract when a user removes the barbell or dumbbells from the assemblies, allowing the user to perform the intended exercise without moving away from the system. The retracted position of the extendable arm assemblies allows the user to replace the weights without the assistance of others at the conclusion of the exercise.