The same type of cylindrical structure used by acrobats riding motorcycles could be used by astronauts to keep fit on the Moon - an important problem to solve, since NASA intends to return astronauts to the lunar surface as part of its Artemis program within the next decade.
A team of scientists, led by Alberto Minetti, professor of physiology at the University of Milan, has even put this to the test, successfully demonstrating that astronauts could run unaided around such a structure.
According to The Byte, using a 30-meter telescopic crane and some elastic cables, the team allowed the runner to experience the Moon's gravity levels.
A video shows a researcher running effortlessly along the circular structure, which could revolutionize future exercise routines for astronauts living on the Moon.
"I'm amazed that no one has come up with this idea before," said Minetti. "This could be a convenient way to train on the Moon."
Spending prolonged periods of time on the Moon's surface brings health challenges, including radiation, micrometeorite showers and limited access to breathable air and food.
As research has shown, the microgravity environment of space has serious consequences for astronauts' health, including bone and muscle loss and deficits in the central nervous system.
Even the weak gravity on the Moon's surface could cause their condition to deteriorate over time.
Just like the astronauts who exercise on board the International Space Station, the future inhabitants of the moon could use devices like the Wall of Death to avoid these negative health effects.
According to calculations by Minetti and his colleagues, astronauts would only need to run at a speed of 8 mph or more to avoid falling.
However, other experts question whether this is the most efficient way to keep astronauts fit in space. After all, the first habitats will probably be extremely small.