This is the shocking moment a fitness fan lifts a heavy barbell above his head before collapsing to the floor and dropping it on the back of his neck.

The weightlifter was injured while training at a gym in Fortaleza, Ceara state on 24th June.

Footage of the gruesome accident shows the victim – who did not want to be named -lifting a barbell off the floor.

As he brings it up to his chest he tries to raise it above his head.

But the weight overwhelms him and he drops the barbell which lands on the back of his neck with a sickening bounce.

The footage finishes with the gym user lying flat on the floor screaming in agony.

A spokesperson for Box Colosso, the gym where he trained, told local media he is due to undergo surgery.

The gym also sent their well wishes to the gym user and his family saying: “The Box Colosso family, in solidarity with the MCSX student, through this note, wishes strength and asks all crossfit students, alumni, and fans to pray for the health of our athlete, who unfortunately suffered an accident.”

“The Colosso family is continuing to support him and do everything possible to help him. We also pray for his recovery.”

Crossfit is a high-intensity sport that incorporates gymnastics, aerobic exercise, and Olympic weightlifting.