Insane Abs Workout Round 2 Сумасшедший пресс

iTunes: Play Store: A 15minute training focusing on abdominal muscles wasn t enough We have increased the workout duration by 25, by adding another 4 literally INSANE minutes and new advanced level exercises. In order to increase the difficulty factor, specific changes concerning recovery times have also been introduced by inserting them only after groups of at least 4 consecutive exercis