c. The RT shown in figure 1-11 is applying principles of good body mechanics.
Instead of straining the weaker back muscles, he is relying on the long and strong
muscles of the legs and arms. He is also holding the object close to his body so that
the line of gravity falls within the base of support.
Figure 1-11. Good body mechanics.
AVOIDING BACK INJURY ON THE JOB
a. Everything you do of work can put you at risk for back injury. A common
mistake is lifting with the back bent and legs straight using last jerky movements.
Bending increases the pressure on the discs and twisting applies even more pressure to
b. If reading this section has made you want to change your ways, keep in mind
that it will take of least two weeks of concerted effort both at home and at work before
new work habits became second nature.
c. Key suggestions are to use body momentum, keep the back neutral, get help,
use assisting devices, keep loads close to the body, and avoid twisting activities.