The document discusses using flywheel training for injury prevention and performance in football. It describes how flywheels can provide eccentric overload training through the entire range of motion compared to free weights. A 10-week training program for junior elite soccer players using flywheels twice per week reduced muscle injury rates and improved jumping and sprinting abilities. For in-season training, a weekly 25-minute high-intensity session incorporating flywheels improved change of direction ability in football players.