Full Plank:

Start with your elbows under your shoulders. Lay your hands flat out in front of your elbows.

Maintain a neutral spine, keeping your head facing the ground. Squeeze your abs and glutes and hold.

Knee Plank Modification:

Start with your elbows under your shoulders and your knees on the ground. Lay your hands flat out in front of your elbows.

Maintain a neutral spine, keeping your head facing the ground. Squeeze your abs and glutes and hold.

Modification #2:

Hold onto the back of a chair or wall and complete the plank.