Scientists at Swansea University have discovered the instantaneous force of a champion boxer's punch equates to 3.5 tonnes.
Art motion capture equipment was used to detect that WBO world cruiserweight champion Enzo Maccarinelli was twice as powerful than the average person.
The 26-year-old is reputed to have one of the hardest punches in the sport and his 24 wins have included 18 knockouts.
The study is due to feature on BBC One's Blue Peter, 1700 BST on 5 April.
Dr Iwan Griffiths, a lecturer in sports science in the university's School of Human Sciences, measured the Swansea-born boxer's against a standard punchbag.
He used the motion capture technology to track each punch and to measure how quickly the punchbag moved on being hit.
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