an international team of experts developed a 20-minute warm-up. The program "11 + Kids" comprises seven warm-up exercises to be performed at the start of the children's regular soccer training sessions.
... the intervention group warmed up regularly with the special "11 + Kids" program. After one soccer season, the injury rate of the team that followed the program was 48 percent lower than the control group, while the rate of severe injury fell by as much as 74 percent.
The results of the FIFA-backed study show that an appropriate warm-up program can help prevent a large percentage of injuries