NEWS that stay at home mums lift the equivalent of close to one tonne daily caring for their babies hasn't come as much of surprise to Ipswich mother of two Angela Broadhead.
Research by insurance agency Million Dollar Woman found typically, a nine-month-old baby weighing 10kg was picked up and put down on average 90 times a day, equating to 900kg.
Mrs Broadhead agreed being a mum could be physically demanding.
"I think a lot of people don't realise how tough it is physically," Mrs Broadhead said.
"Or they forget about it when they are past that stage in life."
The 28-year-old said she found her back was often sore after a day spent caring for her two children, two-year-old Liam, who weighs 15kg, and six-week-old Sophie, who weighs 5.6kg.
"When I went back to work between the two kids, I used to look forward to going to work to give my lower back a rest," Mrs Broadhead said.
"Particularly when I was pregnant it was tough on my back, legs and arms."
But the Brassall resident said the emotional benefits she got from spending time with her children made it all worthwhile.
"It is all worth it when my little boy gives me a cuddle," Mrs Broadhead said. "I wouldn't swap it for the world."
Million Dollar Woman CEO Lynette Argent said the baby barbell added up when factoring in up to five feeds a day, two naps, play and sleep times.
"We all know parents with young children are often tired and we put it down to a lack of sleep, but perhaps it is also the solid weights workouts they lift on a daily basis," Ms Argent said.
"Who would have thought stay-at-home parents lifted the equivalent of one tonne, or a baby elephant, every day or so?"
She said as a result, full time workers spent 161% more on health and fitness each year than stay-at-home Australians.