Position your hips on the pad with your ankles secured and your upper body hanging forward over the edge. Raise your torso until it is roughly in line with your legs, forming a straight line from your head to your heels, and hold that position rather than moving through reps. Keep your neck in line with your spine rather than craning your head up or tucking your chin. Squeeze through your glutes and lower back to maintain the line, and resist the urge to hyperextend past straight, level is the target, not arching further backward.