Thanks Chris.
From your post I definitely picked up at least one thing that I had totally omitted: Shoulder to tucked chin.
Originally Posted by
Scrap
What moves the left shoulder is the right shoulder simple Biomechanics. If you pull the left shoulder back when throwing the right it does 2 things. 1st it keeps stability on the back foot, 2 the hook that follows has better Technique, through balance. The muscles in the arm and shoulder have had bad practice, if you keep working at it, it will come right. It feels strange at 1st, the joint has bad habits.
-Pulling/turning the right shoulder back is a trigger making it easier to get your chin behind your arm when you jab.
...but I remain a little confused if the rest of the quotes were supposed to point out specifics where I had something wrong.
Do you know -- or know of a source -- that explains the bio-mechanical and technical (physics) reasons for turning the hand palm down (and I presume doing this from the shoulder as I wrote)?
Everybody (including the karate folks and my own beliefs) seems to argue for this, but I am wondering if there is any actual science behind it
No, but I'd also like to know more about the biomechanics behind it too. I think that this sort of question would be best answered by Scrap, since it's his field of expertise. It's worth making a topic about.
Also, my coach is wanting me to hit both hard and fast with the jab -- are there any (technical) tricks for doing all three of the following on the jab:
- Hitting hard
- Getting the hand fully back -also try to get your elbows back, as that can improve your body's response time according to Scrap.
- Avoiding a 'pause' between repeated jabs
...or must I just keep hitting until the muscles/nervous system make physiological changes?
Just work on improving your default jab, with and without stepping into it. Things such as throwing it relaxed can take considerable time, and it's better not to try too hard. It does improve with time.
Stepping in with the jab, with a slight twist of yours hips, and turning your shoulders can generate a lot of power for the jab. When doubling it up, I think that it's usually better to take a couple of steps forward. My line of thinking, is this is so that you're not overreaching with your jabs. Other times, you can can just take a step forward with one jab, and if they're still in range, you can hit them with a hard short left without having to take another step.
My jabs hit fairly hard, but I am definitely introducing a (very) slight pause between jabs when doubling, tripling etc. I want to remove that delay but keep a strong punch and good form (getting the hand back to guard.)
Oh, and yes, I did put a lot of thought into this, and I work hard each bag session to put in my maximum without saving anything 'for later'. Some of this will improve with more training/development, but I believe that the perfect punch will always be stronger and more effective at any particularly physical level.
[Oh, and yes, I lost a little bit while rebuilding the punch from my original approximation -- had to retrain, still retraining the neurology and muscles to automate the new behavior -- but that period should be over in a few more training sessions. Sort of like changing the grip in golf will set someone back for a bit but if the grip is truly better the re-learning pays back in the long term.]
Thanks for thinking this stuff through with me and for the advice. Also thanks to Scrap for the encouragement and for originally writing some of the quotes you posted to help me.
You're welcome. I'm glad that I could help you.
--
HerbM
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