Spider to Across-Body Plank

Start in a high plank position with your hands directly under your shoulders and your body in a straight line.

Bring your right knee forward toward your right elbow, bending your upper body slightly to engage your obliques.

Extend your right leg back to the starting plank position while maintaining a tight core.

Next, bring your right knee across your body toward your left elbow for a deep twist.

Return your right leg to the plank position, then repeat the sequence on the left side.