A 4minutes abs workout: how to get a six-pack at home

These are 3 good and simple exercises to make your abdomen really strong and to make your core fit: "Knees-up", "Classic crunches", "Side plank": you can do them in a row or you can perform them separately: anyway, you should do a total of 10-12 sets of 10-12 reps with just 5 secs of rest between sets...Eat good and train your abs every day, mixing all these 3 exercises in different ways.