Devised by BASI Pilates founder Rael Isacowitz, the BASI Block System is a specialized ‘filing’ system for the hundreds of exercises in the Pilates repertoire. It categorizes them in a logical sequence that ensures the progressive structuring of classes within a flexible framework. This system is the foundation of the BASI methodology.
The Block System encourages progressive thinking within a structure. It enables the instructor to construct a class that is balanced and addresses all planes of movement and multiple muscle groups.
The Block System categorizes each exercise in the Pilates repertoire into one or more of 12 Blocks: Foot Work Spinal Articulation and Lateral Flexion are examples; and there are multiple exercises to choose from in each Block. The criteria which come into play when choosing an exercise include things like the experience, the level and goals of the client, the needs of the class such at the time, and the structure and flow.
The beauty of the Block System is that an instructor can construct a class that suits the ability of each client without compromising on their specific needs or restrictions. And, as BASI instructors gain experience they become ever more skilled at working with the many opportunities and intricacies of the Block System.