Some people like sit-ups, some do not. Some people feel the sit-ups working their core, others do not. The sit-up is not a good or bad exercise for your core muscles – it is just an exercise. Just because Mike Tyson liked them doesn’t mean you have to! You can train your abs using planks, hanging abs raises, ab wheel rollouts … the possibilities are truly endless. The best exercise for your core is the one that you’ll do and that you enjoy doing. Performing an exercise consistently is the pathway to progress.