Try this interval workout
Written for www.homegymshops.com
Interval training is a type of training that involves a series of high intensity workouts interspersed with rest or relief periods. The high-intensity periods are typically at or close to anaerobic exercise, while the recovery periods involve activity of lower intensity.
This is a great FREE 30 minute interval workout that is great at home with no equipment needed. All you need is your devotion and your motivation!