Get your lower body in shape with these fast and simple exercise sessions. Fast workouts: quick sessions for the legs and butt that take just 5 minutes. Stay motivated: Every exercise in every workout has a target to aim for which varies depending on your previous progress. Stay on track: All workout sessions have timed rest and exercise periods to ensure fast sessions that take no more than 5 minutes - even the busiest people should be able to find 5 minutes to exercise! Simple: All exer