The "piece" you are likely referring to is the Hardstyle Sit-up , the foundational exercise of Pavel Tsatsouline’s Hardstyle Abs philosophy.
The book outlines three primary "drills" (exercises) designed to build this tension. They look simple, but the technique is what makes them effective. pavel tsatsouline hardstyle abs pdf
Unlike standard sit-ups, this variation focuses on generating an "unbelievable contraction" by integrating the legs and core more effectively. The "piece" you are likely referring to is
: Tsatsouline's approach often involves creating and maintaining body tension. This is crucial for many kettlebell exercises and directly translates to having control over the core muscles, which is essential for achieving defined abs. While the keyword is a popular search term
While the keyword is a popular search term on BitTorrent sites and Reddit (due to the fact the DVD is out of print), the most ethical and reliable way to get the knowledge is through StrongFirst (Pavel’s current organization).
The "Hardstyle" method focuses on creating maximal internal tension rather than muscular endurance.
Pavel Tsatsouline’s Hardstyle Abs is a definitive guide to developing high-tension core strength, moving away from high-repetition endurance exercises toward "iron body armor" and explosive power. The Philosophy of Hardstyle Core Training