 Martial arts systems that utilize high kicks also emphasize training of very efficient and technically perfected forms of kicks, include recovery techniques in the event of a miss or block and will employ a wide repertoire of kicks adapted to specific situations.Detractors have asserted that the flying/jumping kicks performed in synthesis styles are primarily performed for conditioning or aesthetic reasons, while the high kicks as practiced in sport martial arts are privileged due to specialized tournament rules, such as limiting the contest to stand-up fighting, or reducing the penalty resulting from a failed attempt at delivering a kick.Although kicks can result in an easy takedown for the opponent if they are caught or the resulting imbalance is exploited, kicks to all parts of the body are very present in mixed martial arts, with some fighters employing them sporadically, while others, like Lyoto Machida, Edson Barboza and Donald Cerrone rely heavily on their use and have multiple knockouts by kicks on their resumee.