
supine abdominal bracing exercise with knees bent, drawing navel toward spine to flatten lumbar curve against floor
Lie on the back with arms crossed over the chest. Bend knees around 90° and feet touches the ground. Pull the belly towards the spine as flattening the back with touching the floor. Hold and back to starting position and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.