Sit-ups target your abdominal muscles, back muscles, and hip flexors, while crunches only target your abdominal muscles. • ...

If you've ever wondered (mid-crunch, most likely) exactly how many sit ups you should be doing every day to optimise your fitness, then you're in the right place - this is exactly the type of question ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. If you’re new to exercise, managing balance issues, or have limited mobility and looking for a gentle way to stay active, chair ...