The rocks beneath him were cold, but something warm and soft supported his back.

If you find it difficult at first to keep your back straight, use a wall to support your back.

One or more stiff, folded blankets to support your back.

Matt put one hand on the baby's chest, and supported his back with the other.

If you stay in bed longer than this, your muscles start to lose strength and their ability to support your back.

The bed adjusted automatically, rising to support his back.

He did it with his brakes on; used just one arm to support my back.

I helped Langby up, trying to support his back without touching the burn.

These support your back and help you lift with your legs.

The key is to reduce glare from the screen, and support your back properly.