They may look similar, but choosing the wrong move could slow results—or put extra stress on your spine.

Five moves and 20 minutes are all you need to improve core strength at home without weights. Sure, lifting heavy in the gym ...

This 10-minute abs workout from fitness trainer Kat Boley is designed to target the obliques, though the rest of your core ...

A strong core helps with posture, balance and stability, and can prevent and reduce back pain. To effectively strengthen your core you need to work the low back, glutes, pelvic floor and the ...

Your core (that means both your back and abdominal muscles) is your source of power—seriously. It's also what helps stabilize your entire body, prevent low back pain, and impact your posture, helping ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Do you want a strong ...

They’re often lumped together as “ab exercises,” but crunches and situps aren’t the same thing — and choosing the right one can impact your results (and your spine). So, if your goal is stronger abs, ...

Workouts Forget planks and sit-ups — the Pilates bird dog crunch is my go-to when it comes to sculpting a strong, stable, balanced core Workouts Forget ab wheel rollouts, try this Pilates exercise to ...

It’s a common fitness dilemma: You’re banging out crunches and planks week after week but still not seeing the strength and muscle tone you want in your lower abs. That’s a sign it’s time to switch up ...

While standing in her kitchen, Madison said that she keeps her ab workout "kinda old school, with a little bit of a twist," and above all, brief. "It's just five minutes so it's nothing crazy," the ...

Certified trainer Terry Tateossian shares 5 standing moves that address waist thickening after 60 — more effective than ...