A recent power punching tips post included the same video as this one (see below) and highlighted the use of great science in supporting claims of martial artists. This is in contrast to some of the flashy pseudo science programs you can see on cable channels. Don’t get me wrong some of them are interesting but most are more style over substance than anything else.
Further, some even contain flagrant errors, while they all seem to use flash looking animation to make the point. The animation tends to contain irritating science writing and formulas poping up all over the place, more for effect than anything esle. These programs can be interesting but the science backing them is often, well, incomplete. So the Tai Chi or more accurately Baji Quan master video is a welcome change as this is scientific lab work and much more pleasing.
The recent post only covered one of the findings the video highlights – ground reaction force, but omitted two others
- angular momentum to linear = whipping action
- impulse, contact time, short contact time = greater force
Power Punching Tips – whipping action
The biomechanics of the motion capture animation (much better than the human weapon effort) clearly illustrate the sequential action starting at the feet, transferring to the hips and then the shoulder before throwing the arm in a linear action. For me the angle from above illustrates the whipping punch action beautifully and so has great value.
Power Punching Tips – impulse
Working from Newtons second law the researchers state that force increases as the time of contact decreases and in this case the master appears to have as little as 25 milli seconds of contact time witht he target.
That is not a lot of contact time! This reminds me of a time when I was first trying to learn this kind of punching. I was used to regular karate push punching at the time and the whole thing was a bit confusing. The difference is that force applied with a push punch moves the target, while the type of punch that the master is doing ensures the force generated is left inside the target. Generally, it is more effective to leave the force inside the opponent, he/she feels it more.
I remember being blown away by this at the time but I did manage to learn how to do this type of punch and can now deliver a lot more force to the target, which is great. Rapid relaxation after explosive tension at point of contact with the target is the key. This is one way of applying, certain of the one inch punch princples but should not be confused with the ‘tagging’ punches of semi-contact sport karate or similar.
While the power punching tips contained in this short video are hardly earth shattering they do lend legitimacy to the claims of martial artists such that ground reaction force, transfer of momentum and impulse are important in getting force into your target. It is extremely refreshing to see the use of sophisticated equipment to illustrate these points with greater validity than the majority of the flashy television efforts.
Originally posted 2011-02-25 03:29:51. Republished by Blog Post Promoter