Previous Position

Dropping Palm Heel Strike (Sokumen Tettsui Otoshi Uchi)

Strike down to a low position with the outside edge of your Left fist towards 9 o'clock

The thumb side of your fist will be facing the ceiling - palm of your hand facing 12 o'clock
Keep your Right hand in the crook of your Left elbow to augment the technique
Breathe out completely and tense all your body muscles for a brief moment on the completion of the move