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 ...

Experts have revealed how many sit-ups you should ideally manage at your age — and the numbers may surprise you.

Sit-ups are great for strengthening the core but doing sit-up after sit-up gets a little boring and it's important to mix up the moves you use to train your core. With this in mind, we've found a five ...

I’ve never enjoyed doing sit-ups. From doing them on the cold, hard gym floor at school to tediously tagging them onto the end of another workout, they’ve always felt uncomfortable on my lower back ...