Welcome to x5 Intensity, your 5 week, full body transformation workout series. In this the fourth week of Cardio Intensity, you will a series of 8 100m sprints, with each one being followed by a 100m recovery walk. By varying between high intensity sprints and slow speed recovery phases you will maximise your calorie burn. Remember to complete your cardio session twice in week 4. So join Grokker experts, Jenny Pacey and Wayne Gordon, and transform your body with their unique workout series, x5 Intensity.