Variable-Resistance Curve and Progressive-Resistance System

A Variable-Resistance Curve and Progressive-Resistance System, comprising:

• one or more fixed resistance components;
• and
• a barbell;
• wherein each of said one or more fixed resistance components comprise a plate having a hole, one or more arms, and one or more weight components;
• wherein said barbell comprises a first end and a second end;
• wherein said barbell first end comprises a first fixing shape portion and said second end comprises a second fixing shape portion;
• wherein said holes of said one or more fixed resistant components are configured to matingly engage with said first and second fixing shape portions;
• wherein said first and second fixing shape portions are gear shaped and wherein said holes of said one or more fixed resistance components are ring gear shaped, such that said one or more fixed resistance components may engage said first and second fixing shape portions in multiple radial configurations;
• and
• wherein when two or more of said one or more fixed resistance components engage with said first fixing shape portion at different radial configurations, they remain fixed relative to one another at different radial configurations.

A Variable-Resistance Curve and Progressive-Resistance System, comprising:

• a barbell;
• and
• at least two weights that are located at opposite ends of the barbell;
• wherein said at least two weights are configured to rotate freely around said barbell;
• wherein when said barbell is subjected to an arc path of movement during an exercise, said at least two weights undergo rotational motion, which produces a rotational inertial torque vector through an axis of rotation, which results in a user having to compensate for this during said exercise.