The Single Leg Slides to the Side on the CoreFlex4D are a challenging and very effective exercise which involves upper body stabilization along with sliding leg movements that further engage the stabilizing muscles, while working the hip flexors and glutes.
Since this exercise involves both the upper and lower body, including a side movement which engages the stabilizing muscles more than usual, this exercise creates significant stimulation of the entire abs & core region, and specifically the Lower Obliques, which are very important for that full, natural looking, toned abs look and feel.
Additionally, the side leg movement improves flexibility, and works the hip flexors and glutes, which are important for mobility, stability, and posture.
For this exercise you will need the CoreFlex4D and a pair of Core Sliders.
Start in the standard plank position on the CoreFlex4D - forearms on the arm rests, hands holding on to the bar, and the toes of each foot on the Core Sliders.
Keeping your left leg straight, extend it out to the side as far as you can comfortably go, hold for a bit, and return your leg to its starting position. Repeat the movement with your other leg.