Which technique is essential for proper lifting?

The technique of bending the knees and keeping the load close to the body is essential for proper lifting as it helps to minimize strain on the back and reduces the risk of injury. When lifting an object, bending the knees allows the leg muscles, which are stronger and more capable of handling heavy weights, to do most of the work. This method also helps maintain a stable center of gravity, which further protects the lower back.

Keeping the load close to the body minimizes the torque on the spine, eliminating excessive bending and twisting that can lead to injuries. This posture supports the use of the body's natural biomechanics to lift efficiently and safely. By employing this technique, individuals can lift heavier loads with greater control and less risk of causing harm to themselves.

Other techniques, such as twisting at the waist while lifting or extending arms while lifting heavy loads, can lead to improper body mechanics and increase the likelihood of back strain or injury. Therefore, using the correct lifting method is crucial for maintaining health and safety in physical tasks.