https://www.shotokankarateonline.com/blog/heian-yondan-kata-moves-5-and-6/ Moves 5 and 6 of Heian Yondan can be very difficult. Height is not important, to the knee or groin is brilliant. There are several applications for these two uraken uchi (backfist strike) and yoko geri keage (side snap kick) in Heian Yondan, but we will use them as two strikes. From moroto uchi uke, the left kicking leg should lift immediately, with the knee pointing the way you are kicking (to the left) and the bottom of the kicking foot, facing the knee of the right supporting leg, try not to drag the leg accross to this position. Both techniques go at the same time, with the uraken uchi hitting just before the yoko geri keage. Be sure and snap the kick back vigorously. ... https://www.youtube.com/watch?v=NWlCDysYRrg

http://shotokankarateonline.com/uncategorized/gyaku-zuki-reverse-punch-video-tutorial/ Gyaku-Zuki Reverse Punch Gyaku-zuki or revers punch is one of the first moves that a karateka will learn, early on in their karate practice. This punch is very strong, an advanced karateka combining great technique, kime (focus), timing, body weight and body rotation, can deliver a devastating blow with this karate technique! There are several ways to practice reverse punch, the basic principles remain the same, the differences come when applying the punch. When practicing karate kihon, karateka will more often than not, take up a long zenkutsu-dachi (front stance), when practicing kumite (sparring), the stance will be higher and shorter in length. With a basic reverse punch from front stance, both arms are utilised. So as the punching arm begins it's forward motion, the hikite (pulling arm) begins it's pull back. In self defense, this is not a good idea, so for sparring and self defense, regarding the arms, just the punching arm is used. Description Below Related To The Gyaku-zuki Video Tutorial Kihon Gyaku-zuki 1. Migi zenkutsu-dachi (right side front stance) . Right arm extended out straight into the tate-shuto (edge of the hand) position and left arm in the hikite position. (see image) Punching gyaku-uki with the left arm. Body and hips are in the hanmi (side facing) position. 2. Drive from the back leg, through the left hip and begin the punch. 3. The left punching arm remains palm up until the elbow loses contact with the body, then start to rotate the left fist and forarm clockwise. 4. At the same time the punching arm starts to drive forward, you also drive the left side of the body forward. 5. When the arm starts to punch and the body starts to rotate, you also drive the hips around and forward. 6. When the arm starts to punch and the body starts to rotate, along with the hips, you also start to pull with the right hikite arm. 7. As the punching arm finishes the rotation, everything else also finishes. The body and hip rotation and the right hikite arm. So your body is in the shomen (Square) position. 8. Try and have an explosive start, but stay relaxed through the movement. 9. Breath out as you punch 10. At the completition of the punch, kime (focus), Tightening the muscles throughout the body for a split second, then immediately relaxing but keeping form. 11. Try not to push the right front knee out as you punch. What should happen is the front knee should come inwards slightly as you tighten the front legs inner thigh (controversial:)) 12. As in the video you can then snap back to the starting position, with the body once again, in the hanmi (side facing) position. 13. IMPORTANT When striking fast, remember to hit with intent! Self Defense Gyaku-zuki 1. The stance is higher, no use of the hikite pulling arm, but everything applies as above. Gyaku-zuki Tip There are three different strikes within the one punch (refer to the gyaku-zuki video). 1. Ura-zuki (upper cut/dig) 2. Tate-zuki (vertical punch) and finally 3. (Gyaku-zuki reverse punch) ... https://www.youtube.com/watch?v=mqQDm_juMMs