Why are you still doing the basic plank when there are numerous ways to advance it? Ramp it up with the modified plank press.

1. Grab any suspension apparatus (rings in this case). Place your hands on the outside and set your body up in the plank position. Everything should be tight.
2. Press the ring out to full extension and bring it back to your face.

This exercise is tough because you're generating power through your toes, torso, and hips for stabilized strength, all the while relying on your upper body strength and proper breathing mechanics to do it successfully. As the pressing motion gets easier, start to press with more force and you'll create more tension throughout the entire body.

This advanced variation will also build your triceps, shoulders, back, and lower pec muscles.