The video below shows the technique Ikkyo (jap. "first teaching") aka Ikkajo ("first principle") aka Ude-osae ("forearm pin") in some usual forms.


The focus here is in tori's hand movements: forearm rotation and changing wrist position. 

Practice roles


Aikido is practiced with these roles:


Tori = the one who is performing the technique (aka "Nage" or "Shite").


Uke = the one who is receiving the technique (aka "Aite").



Omote = front of uke.

Ura = behind uke.


Irimi = to enter (move ki forward).

Tenkan = to turn (change direction of ki).