A woman pulled a hilarious prank in the gym as she lifted an unknown man by his legs and pushed him around while he held onto a rolling barbell.

CCTV footage shows the man, not identified in local media, doing a barbell ab rollout exercise on the gym floor in Changzhou, China, as part of his workout routine.

The exercise caught the attention of an unnamed woman who sat nearby resting between her sets. All of a sudden, she stood up and approached him from behind.

Seemingly oblivious to her presence, the man was shocked as the next moment she lifted him by his legs and pushed him away as he held onto the rolling bar.

She then took him for a 'spin' around the gym as he quietly participated in the act, unsure of what to do.

Stunned, the man later said: 'I don't even know her.'