What is the correct way to lift heavy objects?

Using your legs and keeping the back straight is the safest and most effective technique for lifting heavy objects. This method engages the muscles in your legs, which are stronger and more capable of handling heavy loads than the back muscles. By maintaining a straight back, you reduce the risk of injury to your spine and lower back. This technique also helps distribute the weight more evenly and allows for better balance during the lift.

In contrast, bending over at the waist can put excessive strain on the lower back, increasing the likelihood of injury. Twisting your body while lifting can also cause strain and lead to injuries, as it puts the spine in an unnatural position during the lift. Lifting with your arms only neglects the strength of your legs and can put too much pressure on your arms and back, leading to potential strains. Thus, the technique of using your legs and keeping the back straight is fundamental for safe lifting practices.