A Review of Marshall (AECC Project List, 1996) In 1996, a research project at the Anglo-European College of Chiropractic (AECC) examined an important functional question: Does prone pelvic blocking influence step length and foot splay in individuals with a pelvic distortion pattern? The study — Marshall F. Effect of prone blocking on step length and foot splay in subjects with a pelvic distortion pattern. AECC Project List, 1996 — explored whether a structural pelvic interve