'If you make these mistakes it\'s never too late to make the correction :) It will help protect your lower back so much! #fitnesstip #howtoplank #plank #form #gymmotivation #plankexercise'
Tags: fitness , Workout , abs , core strength , gym , personal trainer , planking , how to plank , how to do a plank , bad plank form , what is the best way to plank , what is good plank form , form demonstration , how to strength your core
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