Your core is an integral part of daily functions and your athletic performance—it’s used every time you sneeze, cough, have a bowel movement, pick things up, or do something more obvious… like sprint.

Plyometrics are explosive exercises such as jumping, bounding, or hopping that train your muscles to generate maximum force in the shortest possible time, says Campus. 'Plyometrics is often called ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Sprint interval ...