These physical therapists have a new approach for strengthening the core, and the NFL is taking notice
Anyone who has been near a gym in the last decade has heard the buzz about strengthening "the core"—muscles in the trunk and abdomen that can be targeted with crunches, planks, and other gut-busting exertions. Yet for all the attention devoted to this crossroads of the human body, it remains a common site of injury for amateur and professional athletes alike.
Source: Medical Xpress