No sit-ups or planks in sight — this is the Pilates exercise I use to build deep core strength, spinal flexibility and balance

As you roll up and down from the V-sit, you should think about lifting or lowering one vertebrae at a time, rather than ...

Forget sit-ups — this 'halfway sit' builds a strong and stable core without hurting your lower back

Yes, your abs and hips along the front of your body are active, but holding the position and moving far more slowly will help ...
Fitgurú on MSN

Still doing sit-ups? This one core exercise builds stronger abs without hurting your spine

If sit-ups leave your back sore or your results stuck, this smarter core move could change everything.
Women's Health

Sit-ups vs crunches: The core exercise that actually builds stronger abs

If you’re a little hazy on the difference between sit-ups vs. crunches, you’re not alone. They both strengthen your core, but the details on how they differ and the benefits of each can be confusing. ...