55-year-old Brazilian man Ronald Montenegro died after a heavy barbell slipped from his hands and crushed his chest during a workout at a gym in Olinda.
WARNING: Disturbing video
CCTV footage shows Montenegro momentarily freeing himself before collapsing as bystanders rushed to help.
Despite being taken to hospital, doctors were unable to save the museum manager and father, who was well-known in his community.
His workplace and gym both issued tributes, while police concluded the incident was a tragic accident.
The shocking footage has prompted widespread concern over gym safety, with relatives and onlookers urging stricter supervision for high-risk exercises requiring trainers or spotters.
