Want a strong core? Learn to activate your transverse abdominus, before hitting all the well known core exercises, and then get doing all the functional stuff, the torso is just one part of the core, your arms and legs and everything else are one big machine that needs to work together in the correct order when required. There you go aled ?
Life's journey is not to arrive at the grave safely i a well preserved body... but to skid in sideways,totally knackered and worn out shouting....Holy shit!...WHAT A RIDE!!