There is a lot of twisting in Newaza, so this is an exercise Kanamaru thinks is very important. Starting in a prone plank, you suspend your body weight on your forearms and toes, keeping your core tight and back straight.
The ‘sit through’ is an expansive yet precise movement. Starting in a prone position, with relatively straight arms, you support your weight on your hands, with your hips a little higher than your shoulders. As it is so expansive, it requires a great deal of control.