Lifting 10 pounds doesn't sound like much, but if you do it wrong, you could put more than 1,100
pounds of pressure on your lower back - that's when it's called overexertion.
Lifting heavy loads or lifting incorrectly can cause strains or sprains to the muscles, tendons or
ligaments. How you sit and how you move can make a difference. Even using the wrong tool or poorly-maintained
tools can hurt by forcing you to use awkward motions or more force than necessary. Major
risk factors for overexertions include: