A man on a 17-hour flight from Perth to London has left scientists baffled by remaining in his seat for literally the entire journey.
The passenger was being observed by scientists from the University of Sydney as part of a study monitoring volunteer behaviour on one of the world's longest flights, website Traveller reported.
- New Qantas flight is as long as it is technologically advanced
- Qantas has theory on how to handle ultra-long-haul flights and it's really hot
Passengers in the study were fitted with two medical grade devices that record sleep, physical activity and changes in posture.
They were also required to give information about their overall state of mind, food and beverage consumption and how they feel before and after the flight.
Professor Stephen Simpson from the Charles Perkins Centre said the man took "zero steps" for the entire 17-hour period.
It is has been reported by Traveller that the business class passenger was so comfortable in his flat bed, he felt no need to move.
Qantas' first non-stop direct flight to the UK was launched in March and was always going to test passenger stamina.
Healthline says this kind of behaviour isn't normal with humans needing to frequent the bathroom anywhere between four and 10 times a day.
Staying still for prolonged periods during a flight can put people at higher risk of developing deep vein thrombosis, which occurs when blood coagulates in the deep veins of the lower leg.
Travel medicine specialist Dr Richard Dawood told Traveller that it is important for passengers move during flights to keep the blood flowing and prevent clots.
This can be done by tensing and relaxing calf muscles frequently, and standing, stretching or walking around the cabin at least once every hour.
"Avoid sitting in the same position for a prolonged period, set alarms to remind you to move about, and don't take sleeping pills unless you are able to sleep in a fully flat position," he said.