The 12-Minute Athlete: Find Fitter, Faster, and Stronger Implementing HIIT and Your Bodyweight is the book by certified personal trainer Krista Stryker, NSCA-CPT, a renowned authority on HIIT and body exercise. She iȿ a qualified personal trainer thrσugh the Natįonal Ștrength and Conditioning Association and resides įn Venice, California.

Resource website