The Quick-Hitting Six Pack Abs Workout Complete the full abs workout circuit, in order, with minimal rest. Rest when needed, but aim to gut it out as quickly as possible — less rest equals HIGHER intensity, quicker pace, and more calories shredded. This is designed to be DIFFICULT. If it’s too much at first, scale it back based on your own fitness level and gradually increase the workload. Challenge yourself, but you should also be able to finish the entire circuit within a reasonable time frame. Complete the routine 2-4x per week, with at least 1 day off in between ab workouts.