WHEN STANDING:
Keep your head level and your chin slightly tucked in.
Stand tall, stretching the top of your head toward the ceiling.
Relax your shoulders.
Tighten your stomach muscles to tuck in your stomach. This will prevent excessive swayback, or lordosis in the lower part of your back.
WHEN SITTING:
Keep your head level and chin up.
Keep your buttocks at the back of the chair an maintain a slight inward curve in your lower back. Sometimes a small pillow or rolled towel in the small of your back helps. Do not slouch.
Keep your feet comfortably apart and supported so that your knees are level with your hips.
WHEN LYING:
Use a firm mattress.
Lie on your side with your hips and knees slightly bent and with a pillow between your legs.
If you can only sleep on your back, a pillow under your knees helps take the strain off your lower back.
WHEN LIFTING:
Keep your head level and chin up.
Keep your back straight, bend your knees and squat as low as possible, keeping your feet apart.
Lifting with the strength of your legs.
Never twist or turn while lifting.
Once you have picked up the object, hold it close to your body.