Originally Posted by barrelntrigger
What's your background in the martial arts? I'm actually interested seeing these techniques.
I've had 5 years of traning in Krav Maga, and a few years in kung fu and kick boxing. In KM, and we are taught always to deescalate potential violent situations but if you must, you hit him first, hard, and fast, and retreat. Your being objective is to get away alive, not to win aka looking cool for go for a ko. Thus, we are always practicing aiming for the groin, knees, solar plexus, throat, and etc. When we were sparing, our coaches would encourage to strike vital points even with boxing gloves on (50% and you can't really chop someone's throat with 16 oz. gloves on but you can kick the groin lol) We don't really practice on take downs because you would have really engage the person and if you are doing well, his buddy could stick you with an ice pick. Bad day for you. So, we do a ton of combatives. This is another reason when I see smooth take downs such as depicted in the video, I get all awestruck.
My background is 1 year of Western boxing and 4 years and counting of a silat style with Chinese influences (or a Chinese style with silat influences, depending on who you ask). Western boxing was fun but I moved away from it to focus on the other style because I liked the broader universe of techniques beyond just a punch in the face. I have no idea what style that cop was using but a few of the techniques looked similar to what I train.
You mentioned KM and what you're describing sounds like the emphasis that my teacher places on an approach to violence, i.e. strike hard and fast, do as much damage as possible and gtfo. We're taught to never stand and bang. That's not self-defense, that's fighting and when the cops show up, everybody goes to jail. Every situation should be over and done in no more than 3-5 seconds if possible.
To turn this back to fitness, people were talking about Brad Pitt in Fight Club. To my mind, that's the optimal look for combat. Light and lean (IIRC correctly, Brad was maybe 155 lbs in that movie). No heavy bulk to move around, fast hands, etc. At that point it becomes a matter of technique versus raw power, and if you train right and know your stuff, the technique can beat raw power.
And at the end of the day, Eason is right, that cop would have vanishingly few situations where he needs to be Action Hero like that. If you think about it, standard cop doctrine around the world is to roll in packs of at least 2: one guy to engage while the other calls for backup if necessary. They'd use guns for self-defense as a first resort, not fists and feet.* That video, while fun to watch, is basically just for promotional purposes.
Which is all to say, keep martial arts in perspective - they're fun but they don't make you invincible. Find a style you like and train the hell out of it, all styles are pretty much the same when you're high level (it's kinda Zen). Check out www.wimsblog.com for a blog from a practicing martial artist, a Dutch guy who posts a lot about not only specific training techniques about also the philosophy of violence. The philosophy is just as fascinating as the techniques - he'll sometimes select Youtube vids of random street fights and break them down into bullet points, showing you the pros and cons of the action, what people could have done right, what they did wrong, etc.
*Fists and Feet: Probably showing my American bias here in this claim. We're used to cops shooting people as a first resort, not last. Maybe the Chinese cop would be a little less inclined to draw his piece on any given day.