When we think of core exercises, standard moves like situps and crunches are often a go-to. But working the side body is an important piece of a well-rounded core routine that is sometimes overlooked.

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

IF YOU ARE focused on building a strong, functional core, you need to know what muscles you're working so hard to sculpt. There are the six-pack muscles (the rectus abdominis) trained with spinal ...

Newsflash: Your abs workouts need to hit all the different abs muscles to be truly effective. It's easy to zero in on the six ...

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Your obliques are the core ...

Slightly strapped for time? Look to Jake Dupree for a fun-filled oblique workout that will take a mere 10 minutes to complete. In the session, Jake is assisted by Lily Huber, who does the movements ...

When you think about having a strong core, your first thought might be well-defined abs and a flat stomach, including a chiseled 6-pack. However, the core isn’t just your abs. The core makes up nearly ...

Time is a precious commodity, and sometimes, finding time to squeeze in physical activity, like a 30-minute HIIT workout, or a group fitness class can be challenging. However, coach Raneir Pollard has ...

For on-demand core workouts — plus fitness challenges, meal plans and inspiration — download the Start TODAY app! When we think of core exercises, standard moves like situps and crunches are often a ...