Judo has two main elements, the sporting skills of attack and defence and the culture of the sport through, which these skills are performed. The moral code of Judo is politeness, courage, sincerity, self-control, honour, modesty, friendship and respect. In Judo competition, a judoka can be disqualified for deliberately hurting their opponent.
Bowing is the most visible of the rituals of Judo. In competition, judokas bow to each other at the beginning and end of the contest to show their respect and courtesy to each other as opponents and to the institution of Judo, which fosters fair play. The bow is used because it is a physical act of humility, gratitude and appreciation.
There are 66 throwing techniques and 29 grappling techniques officially acknowledged.
Throwing techniques Nage waza
Standing techniques Tachi waza
Foot/leg techniques (21) Ashi waza
Hip techniques (10) Koshi waza
Hand techniques (16) Te waza
Sacrifice techniques Sutemi waza
Supine sacrifice techniques (5) Ma sutemi waza
Side sacrifice techniques (14) Yoko sutemi waza
Grappling techniques Katame waza
Hold-down techniques (7) Osae waza
Strangling techniques (12) Shime waza
Joint techniques (10) Kansetsu wa