USE YOUR LEG MUSCLES Your back is easily injured. Whether, lifting pulling, or pushing, bend your knees not your back. This will put pressure on the powerful leg muscles Which can better absorb it Always keep you ur back straightUSE YOUR LEG MUSCLES Your back is easily injured. Whether,lifting, pulling, or pushing, bend your knees -- not your back. This will put pressure on the powerful leg muscles which can better absorb it. Always keep your back straight