A somewhat random technical observation
So, this morning I was playing rugby. I used to think that it was almost a diametric opposite of Aikido, but this morning I noticed a link, which I shall now post for your (hopeful) edification.
Here it is: The usual method for tackling works along much the same principals (that I was tought) as Aikido. Lock the joints and break the balance. In rugby we tackle low and attempt to stop them from moving their legs, then drive up with the body to break their balance by pushing forward through them and up off the ground to remove their traction. So, we lock their joints (knee) and break their balance (push)
I hope that made sense to you, and for anyone who cares, we won 43-12.