Crunches. So 1995. Planks? Child’s play. For decades, those were the staple ways of training your core, and you’d do them every day—with iffy and sometimes painful results. Those old-school movements ...

Core training is a staple of a well-rounded fitness routine. And the "core" is more than just the abdominals. It's a common misconception, so you may be surprised to learn that the core actually ...

Personal trainer Jeanette Jenkins is a well-known fixture in the celebrity fitness world—and for good reason. The Los Angeles–based founder of The Hollywood Trainer has worked with Pink, Serena ...

Most people agree—aside from building bigger arms and bulging pecs, there's nothing that screams I'm in shape than abs. While a six-pack starts in the kitchen (even more so for an eight-pack), cable ...

These days, most people understand the importance of basic core strengthening, but functional core workouts are essential for building a resilient body that can handle everything from carrying heavy ...

Are you up for a 31-day challenge? Join us on the START Today Facebook group for daily tips and motivation, to connect with others following the plan, and to get real-time advice from trainer ...