This is the moment a man bends over to brush the dirt of a trainer after tying his shoelaces on a windy day before a large iron gate suddenly whacks his behind and sends him tumbling into the street.

The incident was filmed in the city of Taiyuan in the Chinese province of Shanxi and was widely shared on the social network Douyin.

In the footage, the man is seen bending over in front of an entrance on a windy day while apparently brushing off some muck from a trainer, and after reportedly tying his shoelaces.

The strong gusts move the large opened metal gate and it suddenly swings shut, slamming the man in his rear.

The man is lifted off his feet and sent tumbling into the road, dropping his mobile phone and losing a trainer in the process.

As a construction worker comes to the man’s aid, he is seen grimacing in pain as he tries to get to his feet.

The injured man then kneels down to recuperate for a moment as the builder deals with the metal gate.

According to the news site Baidu, the man suffered injuries to his arm and was sent to a nearby clinic for medical attention.