Road to Recovery: The Origin of the Arm Bar Posted on October 19, 2019October 23, 2019 by admin At age 15, Ronda practiced arm bar, after arm bar, after arm bar; due to an ACL injury she sustained. In what she referred to as an ‘advantageous disadvantage’, she worked tirelessly to perfect her arm bar. It was that setback that paved the way for Ronda to become who she was meant to be.