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: Sumo squat jumps

If you’re looking to build muscle and increase strength and power in minimal time, explosive moves like this is are for you. This will work your glutes, hamstrings, quads, and calves.

The difficulty level: Keep your knees over your toes to avoid injury and maintain good posture to really maximise this workout.    

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