Yoyo was invented by foreign countries as a means of testing physical fitness, but no national league has ever required yoyo results to be linked to playing qualifications, and this test has been eliminated in Europe.

Yoyo mainly involves running a 20-meter turnaround while listening to the beeps. The intervals between the sounds are getting shorter and shorter, which means that the runner must run faster and faster, and cannot jump ahead or jog. Specifically, It is divided into more than 20 levels. The regulations of the Chinese Football Association seem to be to reach level 16 or 17, and false starts and jogging are considered fouls. If you commit two fouls, you will be disqualified from the test, lose the qualification to play in the league, and wait for a period of re-testing.

This method is very backward. Do you want the reminder sound for the return run?