“…Specifically, OPTIMAL theory identifies three distinct and partially independent motivational (enhanced expectancies, autonomy support) and attentional (external focus) motor learning factors/principles (i.e., "pillars") theorized to leverage the capacity for CNS plasticity to achieve enhanced motor behavior through adaptive neuroplasticity [160]. Further, the pillars of OPTIMAL motor learning can be combined for more robust, additive effects [1,23,102,103,106,128,161], but a conceptual framework for application of OPTIMAL theory in the context of ACL injury management strategies in youth-inclusive of prevention, rehabilitation, and exercise performance more generally-has yet to be proposed. A better mechanistic understanding regarding the role of motor learning on the CNS may help practitioners 'buy-in' and implement such methods in practice.…”