We've been working a ogoshi-to-ouchigari combo in judo, but you have to be careful to make sure that what you end up with is definitely not kawazugake - a banned technique. You do that by making sure to rotate fully toward uke so that you are facing him between techniques.
The first of these vids is a controlled demo of kawazugake, but the second one is a neat vid of a kawazugake thrown in a sumo competition in the 1970's. It's not obvious from these videos why it is a banned technique, but I suspect that it is tempting for players under combat stress to entangle the leg and sit back onto it, endangering the knee as well as cracking uke's head and falling on him.
The other thing that is not obvious to me is why it is called kawazugake (the frog-hook). Seems to me it would be called kiwazu gake (the dangerous hook) - but that's just me.
Patrick Parker, is a Christian, husband, father, judo and aikido teacher, Program Director for a Cardiac Rehab, and a Ph.D. Contact: firstname.lastname@example.org or phone 601.248.7282
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