BeatBelly trains the following core muscle groups

• Small back muscles (multifidus)
• Straight stomach muscles (rectus abdominis)
• Deep transverse muscles (transverse abdominis)
• Oblique Abdominal Muscles (obliquus externus and internus abdominis)
• Deep Low Back Lateral Flexor (Quadratus Lumborum)
• Thigh muscles and hamstrings (Quadriceps)
• Hip flexors (Iliopsoas)