<br />Tired of doing crunches to work your core? The plank is a phenomenal exercise that gives you the option of doing something other than a crunch to work your abs. This three-minute plank workout takes advantage of how variable the plank can be while still pushing you to work hard and strengthen your core.<br /><br />Here's what the workout looks like. Each plank variation is held for 30 seconds:<br />- Plank<br />- Plank with leg raises<br />- Side plank on right arm<br />- Side plank on left arm<br />- Plank<br />- Spiderman Planks <br /><br />If you need to take a break during one of the planks, just place your knees on the ground and rest for a bit, then once you're ready go back into the plank.<br />
