For example, as a fitness instructor, I have suggested that many stevedores should keep their lower back upright when moving things, and squat down to move them instead of bending down, so as to better protect their lower back, like this:

They will thank me and say that there is not so much pressure on the waist.

And after a while, it returned to the state of bending over to move things.

Then they will tell me with a shy smile that bending down is faster and there is no way.

Therefore, manual workers, various joint injuries or long-term patients are very common. This is because the pursuit of work is efficiency, rather than rational use of one's body-which runs counter to sports training.

Capitalists give you money, but you don't have time to think about anatomy, strength, center of gravity and balance.

Today, I accompanied my daughter-in-law for a checkup, and I accidentally saw such a reminder posted on the wall. I don't know how many people pay attention to it, but it's good to post it.