Dobry post z Sherdoga.
"I've been interested in bare knuckle boxing for a long time (Boxing before Queensberry Rules. not modern bare knuckle boxing) and I've been wondering, Why did the old timers strike with there fist in a vertical position hitting with the last three knuckles. I always thought the last three knuckles where the weakest. I was always taught to throw any punches aiming with my middle knuckle or both my middle and index. Was it safer to throw bare knuckle punches connecting with the last three knuckles so the impact is spread along more surface area. If you disagree with this, please state your opinion"
Na co jeden gość sensownie mu odpisał:
"I`ve done quite a bit of research on the topic over the last 4-5 years. I did this because I learned to strike from kickboxing instructors who taught me to land my strikes on the 2 knuckles (index and middle) and it was impossible for me to strike a heavy bag (even at half strength) without wrist supports. This was always unsatisfactory to me. Now (after switching to a 3 knuckle landing) I can go full strength on a heavy bag while fully getting my weight into the shots, I do this with no wrist supports and I have no problems.
As was mentioned earlier in the thread, Jack Dempsey in his "Explosive punching and agressive defense" book gives the most comprehensive explanation I've found on the subject and if you are truly interested in the topic you should look this up. During his early years, Jack Dempsey would fight the toughest man in town (in order to make a living) while travelling through the minning towns of the Rockies. All of these fights were bare knuckled (and probably looked more like MMA than boxing). He used to hit the heavybag with no wrist supports and non-padded gloves. Boxing gloves during his career were much smaller than today`s gloves. With all of this, he never had hand problems because he learned to punch from the old timers who had fought bare-knuckled.
The 3 knuckles (Pinky to index) are backed by bones that are directly aligned with the wrist and the forearm bone (when the wrist is held straight and a fist is made). This means that any load applied to these knuckles will be transfered directly from the knuckles to the hand bone and then to the wrist without any mechanical advantage.
The index finger knuckle is not aligned directly with the wrist and forearm. Any load applied to this knuckle will gain a mechanical advantage via the lever that is formed from the mis-alignment of the hand bone and the wrist. This greatly increases the stress on the wrist.
To feel this difference yourself, try doing push-ups on your knuckles with your fist position at shoulder or chin height. Try at first with your fist in the horizontal striking position with your index and middle knuckle on the ground. Then try to do them with your fist in the vertical position with your pinky, ring and middle finger knuckles on the ground. Decide for yourself which is more stable and strong. Which position requires the least amount of effort to keep your wrist straight. For me (and for Jack Dempsey and for bare knuckle fighters of the days gone by) it was the vertical fist on the three knuckles.
Another beauty from Dempsey is the idea of explosively squeezzing your hand a fraction of a second before impact. This achieves the following...
1. Helps align the wrist properly.
2. Allows the muscles in the hand to support the bones of the hand during the impact.
3. Stiffens the arm and prevents it from absorbing the energy of the impact (like a spring would absorb energy as opposed to a beam which would not).
When a stepping strike is delivered, your weight is set in motion and will add force to the impact. If your opponent is also moving toward you, this adds more force to the impact. When blows like this connect in a bare-knuckled situation, proper bare knuckle technique is crucial in order to avoid hand injury.
This is only the tip of the iceberg for proper bare knuckled technique, again I recommend reading Dempsey's book."
Cały post ma sens, ale chciałbym tu odnieść się w szczególności do pompek. Jasno i wyraźnie widać, że robiąc
pompki na trzech ostatnich kostkach ma się o wiele mocniejsze, stabilniejsze i bardziej naturalne podparcie niż robiąc je na dwóch.