BodyBuilding Bros on Instagram: "Roman chair sit-ups: where your abs stop pretending and start working. It is an excellent way to train your abs as: 1. It gives Superior core activation. 2. Strengthens entire midsection. 3. It is scalable and progressive. 4. More efficient than other workouts. Long range, deep burn—this is how the classics built their core 💪🏻💪🏻"