DYNAMIC KAJUKENBO BY BARRON SHEPHERD

AVAILABLE 2024

If Boxing is called the sweet science then Kajukenbo should definitely be referred to as the savage science of street fighting.  Kajukenbo was developed as a brutally effective street fighting system, the reader should take notice that I didn’t say self-defense system. 

The creators of Kajukenbo literally brought the street into the dojo. Those who brought about the concepts and creation of Kajukenbo trained like they were fighting in the streets and knew if they didn’t get it right, they would likely end up cut, beaten, stabbed, shot and even dead.

Kajukenbo is NOT the peaceful way! It is NOT the way of de-escalation! Kajukenbo’s mindset is one of approaching or attacking violence with greater overwhelming violence. Hit first, hit fast, hit hard and finish the guy! Kajukenbo’s history shows us that Kajukenbo was never about the avoidance of violence. Engagement and destruction were the strategy and tactics of Kajukenbo.

The strength of Kajukenbo lies in how techniques from the different styles that made up Kajukenbo (Karate, Judo, Kenpo and Boxing) are combined. Taking the opponent out of the fight as quickly as possible by delivering techniques in combination as BALLISTIC as possible to cause as much damage possible is the aim of Kajukenbo. You cannot do these things if you don’t ground yourself in the principles of physics. The only way for optimal performance in Kajukenbo is to understand the forces at work, by the numbers, then work on increasing the value of those numbers though repetition.

Kajukenbo is literally opening the whole can of “whup ass”. The most effective of Kajukenbo techniques are ones that effectively dole out the principles of physics, quickly and forcefully coupled with a will to achieve the goal. Physics in Kajukenbo might not seem like the most obvious subject to consider, but for a science that seeks to understand everything about the elements of motion, energy and force, the connection to Kajukenbo is clear. The six principles of physics that are important in Kajukenbo are acceleration, force, momentum, energy, speed and velocity. Their  interdependence is a key factor in Kajukenbo's combination attacks.  

Kajukenbo is a fighting style geared for the streets. The test of truth regarding your fighting skills is whether they work or not. The basics of applying any successful technique be it a punch, a kick or a throw can be broken down into a few factors:

Acceleration – Without acceleration there is little or no power. Acceleration determines whether your technique hits or misses or if you can be countered or not. If honed by practice for control acceleration can become an over whelming factor in a street fight.  

Force – Force is a factor that results in the acceleration of an object. You will want to make sure that over time you develop a sense of how much force is being generated by your acceleration, so you can improve your acceleration.

Momentum – Momentum is defined as the product of an objects mass multiplied by its velocity. An effective technique is usually going to be very quick and strong. The goal is to generate maximum velocity allowable by time and space.

Energy – Energy plays an important role in the physics of Kajukenbo, the more energy your tecniques and combinations possess the more damage you can do.

Velocity – Velocity is a term often used interchangeably with Speed, however, their physical definitions are quite different. Speed is a quantity that only has magnitude not direction. It refers to how fast an object is moving. Velocity is a vector quantity and it refers to the rate at which an object changes its direction. The difference being that is Velocity has direction and magnitude. If one wants to punch harder or develop a bone breaking throw training may need to focus in the torsional vector. Meaning improving the velocity of rotation where these forces are often applied in punching striking kicking and throwing. 

Physics as well as the kind of physical and mental toughness built through hard training is the way to win street altercations. A study of physics in relation to such a diverse fighting method like Kajukenbo can help us better understand how to use our bodies more efficiently to deliver ballistic movements and techniques. Breaking down the way energy is harnessed into our mass and our speed, physics gives us a clear view of where we can improve. It provides a road map to how we can become better punchers, kickers, throwers etc. Improve in all areas and ranges of motion, so we can hit harder and faster. It will give one the competitive edge and the advantage in the street! The place Kajukenbo was designed in mind for.

As an older Kajukenbo practitioner and athlete (yes, serious KJKB practitioners are in my opinion combat athletes), while being tough and being in shape are necessities, I have come to understand that knowledge of bio mechanics and understanding the elements of motion save wear and tear on the body. Proper biomechanical execution and knowledge of what makes our techniques sound and can function the most efficiently can increase your longevity. Giving us the ability to keep training strong so that we can remain strong!

Lastly, Kajukenbo is a brutally extreme fighting method which more than potentially revolves around a life or death scenario….not a ring. One may take punishment but one also has to be tough enough withstand and then dole it out. There are no rounds in the street, no time outs, no rest periods.  Your own style of fighting is a personal thing. This only develops through diligent training. Only then will the moves which you will depend on become automatic, reflexive and instinctive. The best style then is a versatile collection of moves, striking, punching, kicking, throws and takedowns that works well for you that are and can be performed at the level of optimal performance.

Limb destruction, Trap, Elbow strike to Split Entry Shoulder Throw

1.) The attacker is standing in a left foot forward lead and the defender is standing in a right foot forward lead.  2.) The attacker moves forward and throws a right rear hand straight punch. The defender parries the punch to the inside and toward the right as he pushes of the back foot and shuffles slightly toward 11 o’clock to the outside of the attacker’s punch.  3.) The defender simultaneously brings his right arm up and parries the punch with the outside of his forearm. His left is up at the chin and the right side of his head is covered with his bicep and forearm.

4.) The defender immediately pivots toward one o’clock. Bending his knees and dropping his center of gravity he grabs the opponent’s right wrist with his right hand and strikes the back of the opponent’s right arm just above the elbow with a left upward elbow. (Steps 3 and 4 shown opposite angle on next page).  5.) The defender checks/traps the opponent’s right arm with his left hand.  6.) Pivot on the back foot counter clockwise and drop step toward eleven o’clock with the right foot and deliver a roundhouse elbow. The elbow strikes the front of the opponent’s right shoulder at the area just above the armpit and turns the opponent’s upper body back toward the defender.   

Steps 3.) and 4.) shown from opposite angle

3.) The defender simultaneously brings his right arm up and parries the punch with the outside of his forearm. His left is up at the chin and the right side of his head is covered with his bicep and forearm.  4.) The defender immediately pivots toward one o’clock. Bending his knees and dropping his center of gravity he grabs the opponent’s right wrist with his right hand and strikes the back of the opponent’s right arm just above the elbow with a left upward elbow. 

7.) Keeping your knees bent drop your center of gravity and immediately strike your opponent’s right shoulder with a left heel of palm strike and grab his clothing at the area struck. This strike should be hard enough to disrupt his posture and rock him back on his heels. 8.) With a short quick jerk with the left hand, pull the opponent into you. Simultaneously begin to pivot counter clockwise into a split entry throw on the left foot. As you begin the pivot bring your right knee up toward your chest. 9.) The right hand moves up under the opponent’s right armpit. The right foot drops back between the opponent’s feet and to the inside of his right foot. The toes of both feet should be pointing toward seven o’clock.

10.) Pinch the attacker’s right arm at his arm pit between your right forearm and bicep. The defender Steps back with the left foot next to the opponent’s left foot.  11.) Straighten your legs quickly and pop your hips upward into the opponent.  12.) Continue to pull and twist your torso to the left, taking your right elbow toward your left knee to finish the throw.  

Explaining the Split Step Entry (Kodokan Judo)

Footwork entries into judo throws include the Split-Step entry and the Back-Step entry. Both allow you to step deeper in between your opponent’s feet allowing for maximum leverage. The Split entries can be utilized in different scenarios addressing different types of attacks from different angles. It will also allow you to make adjustments during the course of the execution of a throw if your opponent tries to step back or away from a throw either incidentally or purposefully. Of the three entries into throws the step pivot, the split step and the back step. The split step methods are the most effective they allow you to enter at different angles and allow for greater execution of force. 

Split Step Entry Shoulder Throw 

1.) As you step forward with the right foot to the top of the triangle punch in your grip with your left hand.  2.) Grab the gi and pull with your left hand at he same time bring your left foot up next to your right foot.  3.) Step forward between the opponent’s feet with your right foot through the triangle and pivot on the left foot. Your right arm moves under his right arm and pinches his arm between your bicep and forearm at his arm pit. The toes of both feet should be pointing in the direction of the top of the triangle.  4.) The left foot moves in between the opponent’s feet. The toes of your left foot should be in line with the base line of the triangle. As the left foot moves back his feet should lift up off the ground. To finsh the throw twist your upper body bring your right elbow to your left hip.