This effective 10 minute ab workout by Michaela Süßbauer is great for beginners or people with little time. You'll be doing floor-based exercises that can be easily intensified by using dumbbells or small water bottles. The aim here is to strengthen your core, not only for amazing looks but also for good posture and balance.

Tip: Ensure body tension and good posture when doing all exercises to make this work-out more effective.