A meta-analysis of the research on pushing/pulling shows that, as humans, we are capable of safely generating more force when pushing, rather than pulling. This is due to the postures experienced while pushing and muscle recruitment.

Which is safer pushing or pulling?

Push Before Pulling

It is safer to push rather than pull. Keep your back straight and bend your knees. Do not twist at your hips to push, but rather keep your core tight and use your legs and body weight to move the object. Face the load squarely rather than at the top or bottom of the object.

Why is it better to pull than push?

On the other hand if we pull an object, then the vertical component acts in the upward direction, reducing the force of friction. So, when there will be less force of friction, it is easier in that case to move the body. Hence, it is easier to pull than to push a body.