The plank is a classic exercise that can be done virtually anywhere. Seriously—you can do it in your living room, in the office, and of course, in a crowded gym.

What's even better, it doesn't require any equipment. It does, however, require commitment. That's because the plank is a fantastic move to work the abdominal muscles and develop core strength. It's also a move that a lot of people tend to approach with laziness, particularly when it comes to form.

So plank the right way by adhering to these two, easy-to-follow technical tips:

- Engage the entire core and glutes

- Keep your lower back straight

It doesn't get much simpler (notice how we didn't say easy?) than that.