How should you adjust your driver's seat to prevent lower back strain during long driving shifts (cab ergonomics)?

1. Slide the seat as far back as possible so you have to stretch to reach the pedals
2. Adjust the seat height and distance so your knees are slightly bent when pressing the pedals fully, and your back is fully supported by the backrest
3. Recline the backrest to a 45-degree angle to simulate lying down
4. Sit on a folded towel to raise your hips above the steering wheel