In my previous article, I spoke about movement patterns and compound exercises. Here, I'll talk about specific muscle groups and how to target each of them. The major muscle groups can be classified as Legs Hamstrings Quadriceps Calves Glutes Back Latissimus Dorsi Rhomboids Trapezius Erector Spinae Chest Pectoral major Pectoral minor Shoulders Anterior deltoid Posterior deltoid Lateral deltoid Arms Biceps Triceps Forearms Abdominals Rectus abdominis (The top blocky layer visible to us) Transverse abdominus (Beneath the rectus abdominus) Obliques (Side abs) Compound exercises usually work 3+ muscle groups. For example, a standing shoulder press mainly works the anterior and lateral deltoids, triceps, traps and a little bit of the pectoral major. The latissimus dorsi and glutes act as a stabilizer. A barbell row mainly works the rhomboids, latissimus