Want a stomach like this? Pilates instructor demonstrates how to completely transform your abs workout simply by … – Daily Mail

Want a stomach like this? Pilates instructor demonstrates how to completely transform your abs workout simply by …
Daily Mail
We've all been in a gym-based class where the trainer asks everyone to 'hold in their core' – but what does that actually mean? Pilates instructor Karlie Andrews said there is a very good reason for 'sucking it in', and it can be as effective as doing …