Ditch the sit-ups! This 15-minute dumbbell routine is your secret to a stronger core

Dumbbell core twists: For this exercise start with your feet slightly wider than hip-width apart and your core engaged. Hold ...

Ditch sit-ups and crunches — blast your abs in 10 minutes with this 4-move standing core ...

If you’re not a fan of sit-ups and crunches then you can stay standing with this 10-minute, 4-move abs workout that uses a ...