You can choose to do side planks on your elbow or your hand, but either way, it's important to make sure your point of contact with the floor (i.e., your elbow or palm) is directly beneath your ...

You can also bring your right knee to your left elbow, and vice versa, an exercise known as a cross-body mountain climber. Climbing planks require you to start on your forearms, with toes on the ...

“Side planks work more of your side body and hip abductors,” Morrow said. “They’re good at strengthening your hips for good balance.” To do mountain climbers, start in the push-up position. From there ...