I don't have any real issue with sit-ups, but my tailbone isn't a fan. The good news is you don’t need to do sit-ups to build a strong core. If you're like me and can take or leave sit-ups ...

If you have 10 minutes to spare and a couple of dumbbells to hand, then this quick core workout from fitness trainer Kat Boley is the perfect way to strengthen your core and energize your day.