![]() ![]() ![]() This gives the punch maximum momentum and it can help knock an opponent down. When a boxer throws his fist, he usually ends the movement with the follow-through. If your force is given over longer time, the more you will push or crush the object.Ī good example of this would be to compare the punch of a boxer to that of say a Wing Chun or JKD practitioner. Both are equally quick and powerful however the nature of the two strikes are different. If your force is given in a short time you will shatter your object. So snapping your strikes deliver enough force in enough time to break the damage threshold of body tissues. The less time your fist or foot is in contact with a part of the body, it will receive force in less time.īlood vessels, bones and other tissue can only withstand a certain amount of force at any given time. ….and so when we combine these three aspects together, it leads me back to the principal I raised that why snapping punches and kicks back cause so much damage. Force over time is a lot less damaging that force all at one time. Remember, the greater your impulse, the less you get hurt. Force spread over time is equal to the change in momentum. Rolling with the punch increase your impulse and decreases the force over time of the fist. (Think Mohammed Ali’s Ropa Dope).īy the way, using more force with your face equates to a broken nose and teeth. But if you lean and roll with the punch, far less force at any given time is needed to stop the punch. In other words, the greater your impulse the less force you need to stop a moving object.Ī lot of force in a short time is needed to stop a punch when it hits your unmoving face. Impulse is the time needed to stop and object’s momentum over a given distance and time. Momentum can also be thought of how much force is backing a moving object. The more Momentum, the more force an object needs to stop your kick. What that has to do with striking someone is: the more mass or velocity behind your kick the more momentum your kick has. ![]() P is the momentum, M is mass, and Velocity is the speed and direction of the object. Momentum is how fast and heavy an object is. The force was zero because the car was not accelerating. What was the force of that massive impact? The problem with using the force equation to measure punching power is that if your fist is moving at a constant speed, no matter how fast, your force is zero.Ī 1 ton car moving at a constant 100 MPH hits a brick wall. Meaning that Force is defined/calculated by multiplying an objects mass by its acceleration (Change in speed). With the latter maybe being the less obvious!įorce is an influence that causes a still body to accelerate. When we talk of a punch or a strike, the obvious aspects of physics are Force, Momentum and Impulse. With this in mind I have decided to research a bit further in what it means to throw an effective strike and try to understand the science behind it.įirst of all let’s understand the science. This was often a result of over thinking the movement. ![]() During practice it was evident that often too much tension was present throughout the body, namely through the back and shoulders, during the jab or tension in the hips and lower back during a low kick. In recent lesson’s we have discussed the fundamentals of foot work and body composition when throwing an attack, with our examples being the jab or a low kick, with an emphasis on being relaxed during the application. ![]()
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