PLANK
The notion that you can do hundreds of crunches to get ripped abs is a myth. Instead of crunches, try the plank. It’s way harder than it looks and it’ll work your core, abs, back, and stabilizer muscles concurrently.
How to do it:
• Position yourself face down on a mat or on the floor, resting on your forearms.
• Push off the floor, shifting your weight onto your forearms and toes, so that your body is in a straight line.
• Keep your hips flat and don’t let your hips sag.
Matt Phelps, MS, NASM-PES, is a personal trainer and owner of Phelps Gym in Albany, New York.