Follow these carefully-curated workout routines to strengthen your abs and core, including your back, fast. Power 20 Amazing Abs improves overall fitness with exercises focused on strength, balance, and muscle tone, but has a special emphasis on abdominal and back muscles.- Guides you through 20-minute, ab and core workouts- Improves overall fitness: strength, balance, and muscle tone- No equipment necessary- Listen to your own music while you use it- Diabetic friendly: helps lower blood-sugar levelsAll you need to do these workouts is something soft, like a carpet, yoga mat, grass or sand to work on. Put your phone or tablet on the floor, hit Start, and within seconds youll be guided through an intense and effective core workout. A foxy guide shows you when to rest and when to move. At the end of 20 minutes youll be panting, sweating, and smiling. Its like having your own personal trainer wherever you are!Want more workouts? Check out the full version of Power 20 for multiple workouts including ab, butt, cardio, leg, prenatal and full-body routines.This workout will improve overall fitness in just 20 minutes. Reach your fitness goals without ever leaving the house.Power 20 is a series of carefully curated, intense and effective workouts. We emphasize design and usability to deliver safe, tested and effective exercise combinations. These are High Intensity Interval Training (HIIT) workouts that use plyometric exercises. Each workout enhances overall fitness: strength, endurance, balance, and muscle tone. These are some of the same exercises you may have seen in the 7 minute workout.WHAT USERS SAY Power 20 was awesome while I was on vacation. I did it every day in my hotel room.I travel a lot for work and Power 20 always comes with me.Workout apps are usually pretty complicated and take a long time to load. Power20 is fast and simple and always works.I thought this was for girls, but its for guys too. Its no freaking joke.Im drenched with sweat.- Power 20 lands a spot among Greatist's coveted Best Apps list for 2014.- Elle Magazine rates Power 20 Fitness Trainer Pro as the top fitness app to take with you on vacation.- About.com named Power 20 as one of the Best Exercise and Fitness Apps for iPhone and iPod Touch- Greatapps.com called Power 20 the best workout app theyve come across.FOR EVERYONE Power 20 is safe and effective for people of all ages. Choose from one of three workout levels. You dont need any prior knowledge of exercise or to be in great shape to use it. Just be sure you have your doctors approval for doing any kind of exercise routine.DETAILED INSTRUCTIONS Gorgeous, detailed diagrams accompany every exercise. Learn proper form and find out which muscle groups benefit from each movement.YOUR OWN MUSIC Listen to your own playlists while working out to Power 20. We allow music from any application to play while you use Power 20.UNLOCK MORE WORKOUTS With every workout you finish, youll unlock a new scene and workout combination. Work your way through cities all over the world.AWARDS Youll start accumulating awards with every workout you finish. The awards are a handy way to let you know which exercises you have done, and how frequently youve done them.WHAT IS HIGH INTENSITY INTERVAL TRAINING? High Intensity Interval Training (HIIT) involves brief, high-intensity movement followed by brief periods of rest. HIIT workouts can be more effective than 30 or 60-minute workouts. Power 20 is a form of high intensity interval training.WHAT ARE PLYOMETRICS? All the exercises in Power 20 are plyometric exercises. Plyometrics are designed to produce fast and powerful movements that improve your ability to do useful, real-life tasks, like running in short bursts, lifting things, climbing stairs, and avoiding falls.