Side Planks
Set up in a side plank position with one forearm on the floor, legs extended, and your body in a straight line from head to feet. Engage your core.
Make sure your elbow is directly under your shoulder. Don't let your hips sag or pike up. Keep your body in a straight line.
Squeeze your glutes and engage your obliques by actively pressing your forearm into the floor. This will help stabilize you.
Breathe deeply and hold the position for as long as you can while maintaining good form. Start with 10-30 seconds and work up to 1-2 minutes per side.
For added difficulty, you can try lifting your top leg or arm. Or do hip dips by lowering your hips toward the floor then lifting back up.