Sit Ups and Crunches train a muscle but not the core

[@katiaspring3269]

thank you that was informative. does the plank withe the side rotation to form side plank help someone with osteoporosis? and if yes, would it always be safe? or are there hints to consider? thank you again.

[@ChristopherHoleTraining]

Weight bearing exercise is good for Osteoporosis, from that perspective it would an exercise you could use. However I recommend working up to it because it can require higher strength to maintain the centred hips.