Basic Body Mechanics

1. Weight is balanced best when the center of gravity is directly above the base provided by the feet. 
2. Enlarging the base of support increases the stability of the body.
3. It is more stable if the center of gravity is close to the base of support.
4. Enlarging the base of support in the direction of the force to be applied will increase the amount of force that will be applied.
5. Face the direction of the task to be performed and turn the entire body in one plane.
6. Tighten the supporting muscles before lifting or making a force on the task to prevent injury.
7. Lifting should be undertaken by bending the legs and using the leg muscles and not your back.
8. Less energy is needed to move an object when friction between the object and the surface on which it rests is minimized.
9. It takes energy to move an object on a level surface than to move it up a slanted against the force of gravity.
10. It takes less energy and effort to lift an object close to your body. Muscles are stronger when contracted rather than stretched.
11. Weight of the body can be used as a force to assist in lifting or moving.
12. Smooth, rthymic movements at moderate speed require less energy than rapid jerky moves.
13. It takes less energy to work on surface at an appropriate height, it should be waist level.
14. When an object is pushed, it absorbs part of the forced being exerted.