X3 bar is the only variable resistance training system with over 600 lbs of available force. By providing a heavier load through the range of motion where your body is stronger and a lighter load where your body is weaker, the X3 bar maximizes muscle fatigue. The greater the fatigue, the greater the muscle growth.
Learn more about variable resistance and the X3 resistance band bar at [ Ссылка ]
![](https://i.ytimg.com/vi/b_NucMEQ9jU/maxresdefault.jpg)