Learning proper core engagement can help, but if the brunt of repeated lumbar spinal flexion takes its toll, you can happily scrap sit-ups and try many other abs exercises instead, including landmine ...

Ditch the crunches and sit-ups and use the corkscrew abs exercise to build a strong core at home or the gym. It's low-impact and you don't need any equipment.

The concept of the "tactical athlete" is a relatively recent development in military fitness training. "Tactical fitness" did ...

HIIT workouts consist of short bursts of intense exercises followed by short rest periods. Exercises like jumping jacks, ...

Ditch sit-ups and build real core strength with this 10-minute plan. Tone your abs and pelvic floor using breath-focused, low ...

Chasing a flat stomach with endless sit-ups? Experts reveal that while sit-ups strengthen core muscles, they don't directly ...

Don’t isolate your abs—integrate them with the rest of your body for a more effective, efficient, functional core workout!

In TODAY.com's Expert Tip of the Day, a trainer reveals how she can always tell when a client is neglecting their deep core and her top exercises to try.

No, you don’t need to do endless sit-ups or crunches to strengthen your core or build ab muscle — I’ve got an exercise for you that's low impact, can be done anywhere using your bodyweight ...