To celebrate our Body Issue, we've kicked off a 30-Day Challenge designed by celebrity and Victoria's Secret Angels trainer Dan Roberts to boost our energy and fitness levels for all the summer happenings we plan to get into. 

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The move: Plyometrics 

Plyometrics, also known as 'jump training'. This exercise is all about working muscle power, great for the legs and glutes. If you are wanting to increase your power and strength then this explosive move is for you. 

The difficulty level: Start slow, low and make sure that you leave enough time between jumps so that you can use maximum force for every one.  

The burn factor: 9/10

Join us in the fun and show us your progress by instagramming and tweeting us at @ELLEUK and @ELLFitTeam, using the hashtag #ELLEFit