Online fitness coach Tim Leysen has put together a 5-minute ab workout. This is a super simple workout you can do at home that will not consume a lot of your time.
Perfect Fitness Ab Carver Pro Roller for Core Workouts
In the video, Tim Leysen spends about 30 seconds on each exercise with breaks in between. It would be wise to make sure you find an efficient way to get track of the time you are spending on each exercise.
