One of the best core exercises out there is the plank. “It forces you to stabilize your body, engaging your entire core — not just the exterior abs that you see in the mirror,” says celebrity trainer Anna Kaiser, founder of AKT InMotion studio in New York City. This means your obliques, or all-around abs (where you’ll find those lovehandles), and transversus abs (the deepest layer) will tighten up. Plus, you’ll work your shoulders and your legs at the same time.
WEEK 1:
DAY 1:20 seconds
DAY 2: 25 seconds
DAY 3: 30 seconds
DAY 4: 30 seconds
DAY 5: REST
DAY 6: 40 seconds
DAY 7: 45 seconds
