Strengthen your core and slim your midsection with these five simple chair exercises that target your abs safely after 60.

Develop your core with Bruce Lee's intense ab workout. Exercises like waist twists and leg raises can help you build strength ...

The starburst side plank variation strengthens the shoulders, abs and obliques. Here's why we love it at Tom's Guide.

Unlike a crunch or sit-up, where you bend through the spine, the dragon flag keeps your body completely straight and rigid as ...

Strengthen your abs and obliques with this 12-minute core circuit that you can do anywhere without any equipment bar a yoga mat.

Stand with your feet hip-width apart and your core engaged. Place your hands lightly on your temples — remember, they should be resting, not pulling your neck during the exercise. Raise one foot off ...

These are the best lower ab workouts for women to strengthen the deep core muscles and lower stomach. This women's lower ab ...

Find out how many sit-ups after 55 signal a strong, healthy core and use this 60-second test to track your strength over time.

Core exercises are easy to fall prey to boredom. After all, how long can you keep doing the same crunches and planks before you hit a plateau? These five core exercises to keep your mind engaged and h ...

What are sit-ups, and why are they a high-risk exercise? An abdominal endurance training exercise, sit-ups help strengthen, tighten and tone the abdominal muscles. It is often done by gym-goers who ...

If you've ever wondered what Jennifer Aniston gets up to in her workouts, look no further than this hybrid strength and Pilates workout ...

When it comes to core workouts, most people fall back to crunches, planks and leg raises, but sometimes, less is more!