Add a med ball to the Superman for loaded back work.
Drive the lift from your lower back and glutes, not by yanking the ball with your arms.
Lying face down with the ball held at arms' length creates the longest possible lever, so your lower back has to work overtime to lift your chest, arms, and legs together. The spinal erectors do the heavy lifting here, holding an extended position against both gravity and the extra load overhead. It is one of the simplest ways to load back extension without a machine, and a smart accessory for anyone whose deadlift or squat folds at the bottom.
A few inches of smooth lift is plenty. You are chasing a strong contraction through the whole back line, not maximum height, and cranking into extreme extension adds nothing.
Bring your hands closer to your head or drop to a lighter ball. The overhead lever multiplies the load massively, so even a light ball is a serious jump from the bodyweight version.
Down at the floor, keeping your neck in line with your spine. Craning your head up to watch the ball strains the neck and encourages you to yank with the arms.
