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I will admit that planks in general are really in style for trainers.  The truth is they are a really perfect exercise.  When you add dumbbells, movement, explosive actions they evolve to perfect-plus (+).  Also trendy in fitness is, ‘working the core.’  Not only doing lots of ‘core’ training, but also saying the word ‘core.’  I feel self-conscious sometimes saying – ‘do you feel your core when you do this?’ Almost like I did in the 90s asking clients if they feel the burn...