Weightlifting involves trying to raise a 50-stone weight - himself.
But without the exercise Manuel Uribe - once the world's fattest man at more than half a ton - won't even be able to get out of bed to get married.
Mr Uribe has lost fully 37 stone in two years of dieting on grapefruits, egg-white omelettes, fish, chicken and vegetables, but he's still too heavy to stand.
As he was carried outside to mark his 43rd birthday today, he said his one dream was to be able to stand for his upcoming wedding to girlfriend Claudia Solis, 38.
'It's so frustrating. My greatest wish is to stand when we wed,' he said.
It's only the third time he's left his home in Monterrey, northern Mexico, in the past six years.
Uribe is still unable to move his swollen legs and his dream is to walk again and visit the mountainous countryside around Monterrey.
But it's not all self-denial.
Presents of suckling pig and lamb arrived as Mr Uribe sat outside on his bed in a bedsheet, had a beer and waited for a cake.
'I'm happy that it is my birthday,' he said.
Mr Uribe spent the 1990s eating pizzas and burgers in the United States where he worked as a computer repairman.
His bulk won him a place in the 2008 edition of the Guinness World Records.
But without the exercise Manuel Uribe - once the world's fattest man at more than half a ton - won't even be able to get out of bed to get married.
Mr Uribe has lost fully 37 stone in two years of dieting on grapefruits, egg-white omelettes, fish, chicken and vegetables, but he's still too heavy to stand.
As he was carried outside to mark his 43rd birthday today, he said his one dream was to be able to stand for his upcoming wedding to girlfriend Claudia Solis, 38.
'It's so frustrating. My greatest wish is to stand when we wed,' he said.
It's only the third time he's left his home in Monterrey, northern Mexico, in the past six years.
Uribe is still unable to move his swollen legs and his dream is to walk again and visit the mountainous countryside around Monterrey.
But it's not all self-denial.
Presents of suckling pig and lamb arrived as Mr Uribe sat outside on his bed in a bedsheet, had a beer and waited for a cake.
'I'm happy that it is my birthday,' he said.
Mr Uribe spent the 1990s eating pizzas and burgers in the United States where he worked as a computer repairman.
His bulk won him a place in the 2008 edition of the Guinness World Records.
