The traditional, cooperative method of practice in
Aikido is in fact a necessity due to the effectiveness
and power of Aikido techniques. Only in this way can
truly effective techniques be learnt. The technical
base of Aikido includes practicing in pinning, joint
locking, and throwing techniques. Special practicing
methods are used to teach how to control an attacker's
entire body.In addition, Aikido places strong emphasis
on learning basic principles such as :