If you've seen people in animal masks walking on all fours, don't be alarmed - they're athletes.
These people are involved in quad biking, which is one of the sports, although an unofficial one.
Although quadrobics has no official status, it offers physical exercise and requires coordination, endurance and muscle strength. This activity is especially popular among children and teenagers.
The name of this sport comes from a combination of the words "quad" (four) and "aerobics", and its founder is a Japanese sprinter named Kenichi Ito.
It was he who came up with six ways to move like a monkey. This happened in the early 2000s.
In 2008, Kenichi became a record holder – his achievement was that a man managed to overcome 100 meters on all fours, spending 18.58 seconds on it.
True, Ito did not hold the record for very long – in 2014, his record was broken by another Japanese resident, Katsumi Tamakoshi.
Soon, just a year later, Kenichi regained his leadership. This time, he managed to “run” 100 meters in just 15.71 seconds. Ito’s reign as the best of the best was short-lived again – in 2022, American Colin Maclure took first place with a time of 15.66 seconds.