Soto uke is one of the most fundamental basic blocks. Although Wado officially does not have 'blocks', this word is easy to use for general explanations. Soto means outside block, or actually outside receiving.
Soto can be translated as outside or to the outside and in case of Budo is refers to movement from the inside to the outside. Uke means to receive, which indicates the way how an attack is dealt with.
Down this page we share a step by step execution of Soto uke from Naihanchi dachi. The use of Naihanchi dachi has several advantages. One of the advantages is leaving out bodymovement. The more factors there are at play, the less focus you can put on a certain element. By using Naihanchi dachi you have the opportunity to focus completely on the movement of the arm. In the video, I demonstrate that method and another one as well, where bodymovement is added on purpose. I also explain the keypoints and advantages of that particular method.
For basic training, Naihanchi is a very good stance to use. Start from "Soto uke gamae", where you position one arm in the end position of Jodan soto uke and the other like Hikite. For standard, you can position Hikite one fist above the belt. The general rule for techniques such as Soto uke, is that the tip of the elbow is just below the shoulder line.
When you execute Soto uke, if you do not want to skip parts of the movement, you have to bring your arm across your body. One of the important points is the movement and preparation of your elbow and your fist. Bring your elbow to the inside and rotate your fist so that the palm of your hand points down.