Oi-zuki
An oi-zuki is an equal-sided punch used in budo disciplines such as karate or jujitsu.
This is an embodiment of the choku-zuki with foot movement. In addition to the block techniques, the Oi-Zuki is one of the first techniques a student learns. The oi-zuki is the counterpart to the gyaku-zuki.
Due to the long movement, the oi-zuki is rarely used in competition. It is mainly found in katas and elementary school techniques.