How to do the perfect side plank, and how to make it easier (and harder). Planks are hard. Even just 30 seconds in plank position can feel like an eternity. But as challenging as planks are, side ...

Want to sweat like J.Lo? Celeb trainer David Kirsch uses this two-step glider plank variation with his clients. Here's how to complete the move. The glider plank, which moves from the classic stance ...

You've mastered plank—way to go! If you're ready to kick it up a notch, there are plenty of ways to build on the move to challenge your core even more. Here, 6 ways to make a stationary plank hold a ...

A step platform may be the most basic piece of fitness equipment in your fitness center, but also one of the most versatile. Made popular by the 1980s step-aerobics craze, step platforms have evolved ...

Under Armour CEO Kevin Plank will hand over the reins of the American athletic-wear company at the end of the year. President and Chief Operating Officer Patrik Frisk will succeed Plank, who will ...

SOMEONE SAY IT IS THE END OF AN ERA. KEVIN PLANK WITH THE PRESIDENT AND CEO OF PATRICK FRISK ON CNBC ON TUESDAY. ANNOUNCING THAT ON JANUARY 1, 2020, FRISK WOULD BE THE NEW CEO AND PLAY WOULD BE THE ...