PRINCIPLES
- TECHNIQUES
tanden

Sensei Nukina explaining about tanden
Tanden is the exact centre of the body. It is not a muscle. It should be the primairy focus of energy. It's like a pool of continuous flowing energy. From that pool the energy flows though the body. The point is to let all movement originate from tanden.
I will add more later, but wadoryu DOES NOT start movement from contraction. Start of movement relaxation unstead of contraction. This is hiza no nuki.