CORE DE FORCE CORE DE FORCE Classesat The Fitness Bank, South Wigston We don't have any of these classes running this week. Check our current timetable to see if we're running any similar classes at the moment. Full Class Timetable >> About CORE DE FORCE CORE DE FORCE - Our quick guide to what it is, how it works, and what to expect during a class! Core de Force is a martial-arts inspired workout which involves a variety of combat moves. You can lose inches off the waist, blast fat and define your abdominals. Knock out the belly fat!