Final answer:
When using a body drive to pull a patient on the ground, one should kneel to minimize leaning distance and use proper lifting techniques with an erect back and legs to lift, to prevent back injury.
Step-by-step explanation:
When using a body drive to pull a patient who is on the ground, you should kneel to minimize the distance that you will have to lean over.
This approach helps in maintaining a proper lifting technique, which is crucial to avoid injury.
When lifting or pulling, it is important to keep the back erect and use the legs to raise the body and load.
This proper lifting technique creates much smaller forces on the spine, reducing the risk of injury.
Therefore, extending your elbows beyond your anterior torso or bending your back to maximize pulling power should be avoided since these can create unnecessary strain on the back.