With the completion of the basic kicking exercises the student should have a better understanding of balance and power generation. Both of these concepts are paramount to learning the kicks that follow such as the Twist Kick. If you need to review the basic concepts of how to perform the Thrust Kick  Kekomi  movement you should view the Geri Kata once again. The most important kick in the student repertoire is the twist kick shown below.

Twist kick refers to the motion of bringing the back leg forward and pushing the foot out to make contact with the opponent either with the ball of the foot or the heel. The motion is similar to the basic kicking exercises except that the kicker/student is now standing in a fighting stance and for the most part his torso and/or body position is diagonal to the opponent. That is, he is not standing flat on to the opponent as in the preceding basic kicking exercises. The twist kick is second in strength and power only to that of the side kick, which is generally considered the most powerful kick in Budo. The kick gets its name from the twisting motion that the body makes as the back foot is brought forward and propelled toward the opponent. Below is a video and pictorial representation of the steps of the twist kick.

Below is an example of the Twsit Kick being used against an opponent.