LEONID BLYUM is a mathematician, biomechanicus and developer of the ABR method. He graduated in 1992 at the University of Novosibirsk with a specialisation in mathematical models of complex systems. His studies involved the structure and the functioning of the musculoskeletal system (biomechanics), and more specifically of the spinal disorders and joint deformities. He worked with his father, a physician specialising in the manual treatment of these disorders. Through study and experience, Leonid developed the belief that musculoskeletal deformities could be well treated with a quasi-static (long and gentle pressure) manual therapy. From 1996 to 2000 he taught applied biomechanics and manual therapy to postgraduate doctors in Moscow.