Set-up: Begin in a regular Copenhagen plank position with your top leg straight on a bench and your bottom leg hanging below. Support your upper body on your forearm with hips elevated and core engaged.
Movement: Lower your hips toward the ground in a controlled manner, then lift them back to the starting position. Focus on squeezing the inner thigh of the top leg and maintaining a stable torso throughout.
Repetitions: Perform all prescribed reps on one side, then switch sides and repeat. This counts as one set.
