Common problem areas for many are the arms, more specifically the upper arms. (homefitnessguru.net)
And this is good for everyone, since the shoulder is one of the most common problem areas. (turbulencetraining.com)
In this series you will learn how to strengthen your core and pelvic floor, tone common problem areas (legs, bottom, and tummy), reduce back aches, and more. (babycenter.com)