In TODAY.com's Expert Tip of the Day, a trainer reveals her favorite exercise for a more defined waistline and strong core ...

Medically reviewed by Mallory Christopherson DC, FMT, CSCS Side planks trains your obliques with movements like twisting and ...

These 5 chair moves target lower abs and obliques to help tighten your midsection and improve posture after 50.

Many think of the practice as stretching, but deep core exercises in yoga are one of the "most powerful ways to build ...

The dead bug exercise may have a funny name, but it's a seriously effective move. The slow and controlled core strengthening exercise involves lying on your back and moving your arms and legs in a way ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Lie on the mat with your arms extended straight up.

PHILADELPHIA (WPVI) -- Shoshana shows us how to use some light weights and your legs to engage your core strength.

The dead bug exercise may have a funny name, but it's a seriously effective move. The slow and controlled core strengthening exercise involves lying on your back and moving your arms and legs in a way ...