Arkady Rotenberg Rotenberg was born in 1951 in Leningrad, where his father, Roman, worked in management at the Red Dawn telephone factory, allowing the family to avoid living in a communal apartment. Rotenberg is of Jewish ancestry. In 1963, when he was age twelve, Rotenberg and Vladimir Putin both joined Anatoly Rakhlin's sambo club. In 1978, Rotenberg graduated from the Lesgaft National State University of Physical Education, Sport and Health and became a judo trainer. After Putin returned to Russia in 1990, Rotenberg trained with him several times a week. During the 1990s, Rotenberg and his brother, Boris, who had moved to
Judo the hard style of randori that seeks to emulate the style of judo seen in competition. While hard randori is the cornerstone of judo, over-emphasis of the competitive aspect is seen as undesirable by traditionalists if the intent of the randori is to "win" rather than to learn. are pre-arranged patterns of techniques and in judo, with the exception of the "Seiryoku-Zen'yō Kokumin-Taiiku", they are all practised with a partner. Their purposes include illustrating the basic principles of judo, demonstrating the correct execution of a technique, teaching the philosophical tenets upon which judo is based, allowing for the practice of