Many experts now recommend planking rather than crunches or situps ... push it back to return to a plank position. Make sure your knee is open out to the side, so your inner thigh hovers over ...

Luckily, there are many variations of the plank that involve actual movement, and one of them is the side plank with hip dip, so my editor decided it was time I gave it a go. I asked her how many ...

Strong obliques — sometimes called your “side abs” — are key players in a powerful core. Here are 4 exercises to sculpt and ...

The reverse crunch is a simple core exercise that targets those hard-to-hit lower abs — without straining your neck and back.

Willis recommends runnning these exercises "circuit-style," doing 40 seconds on, 20 seconds off. "Three rounds if you're ...

Examples include the plank and knee-to-chest stretches ... These can include knee-to-chest, kneeling, and seated side straddle stretches. Together, lower back strengthening and stretching ...

"From a side plank, lift your top leg and arm into a starfish position. Hold or pulse," Willis suggests. "In a forearm plank, ...

The following seven exercises move beyond basic crunches to engage multiple muscle ... Avoid letting your hips sag or rise during the movement. Side plank knee to chest This challenging variation ...

Then bring the left knee up and crunch the right elbow down to meet it. Continue alternating sides. Don’t forget to squeeze your abs. Sit on your butt with your legs bent and heels resting on ...

“In a crunch, you give the abdominal muscles ... while still working on multiple muscles. For example, a plank with a knee lift toward the opposite side of the chest increases ab activation ...

Sit-ups, on the other hand, engage corresponding muscles (hips, lower back) a bit more than crunches, but not as much as a plank would. Plus, if you have a previously existing lower back or neck ...