Career
He holds the Guinness World Record for running 100 meters on all four limbs, setting a best time of 15.71 seconds in the Komazawa Olympic Park in Tokyo, 6 November 2015, shaving 0.15 seconds off the previous record of 15.86 seconds by Katsumi Tamakoshi. Before Tamakoshi"s record, Ito also held the record of 16.87 seconds, set on 14 November 2013. He also held the record before that, having set a time of 17.47 seconds on 15 November 2012, and the record before that of 18.58 seconds in 2008.
Ito spent nine years studying how animals like monkeys move.
He works as a janitor, and says he mops floors on all fours to practise his four-limbed running technique.