Master the bicycle crunch from start to finish, learn the mistakes most guys make, and add variations that target every part of your core.

Sit-ups can be a great way to strengthen your abdominal muscles that sit around your stomach. But they can quickly get repetitive and its easy to accidentally lose your form, so when boredom strikes, ...

Skip crunches. These five chair exercises target abs and obliques to tighten belly overhang and support your back after 50.

Work your core muscles, improve your posture and boost your stability with this five-move resistance band routine from ...

There are many ways to do a plank, from straight-arm, side, and one-legged planks to plank knee taps and jacks. These moves ...

While many workout regimens flame out as quickly as it took them to start trending, others stand the test of time. Exercises like tai chi, running, swimming, hiking and yoga, for instance, have been ...

Ever look at someone and think, “Man, how many crunches does it take to look like that?” If you want to tone your abs, crunches—which target the top part of the abs—can help. But if you want to see ...

Both core exercises can strengthen and tone your abs, improving stability and balance while building a visible six-pack. But ...