longtooth wrote:Longer I think about it the term I am trying to remember that is the slow continuing tightening of the hands until discharge I believe was used by skiprr in one of his presentations.
LT: It wasn’t me.
But you raise an interesting point.
Increasingly, positive trigger control has become the norm in training. Meaning that once trigger pressure is initiated, it becomes a constant, uninterrupted pressure until the weapon fires...understanding that some triggers have slack or stages of uptake.
Gone are the days where initial pressure might be applied to a heavy DAO trigger in the hopes of shortening the movement to break the shot. And thank goodness those days are gone. Very bad idea.
Muscular contraction begins with a motor nerve impulse from the central nervous system, which touches off a biochemical chain of events. That biochemical chain is happening rapidly, over and over again, as a muscle is in contracture...under stress. Increasing frequency of contraction and increasing recruitment of muscle fibers occurs simultaneously. In other words, you physically cannot hold a steady, precise muscular pressure: you may feel as if you can, but some muscle fibers are firing and others are relaxing—in terms of milliseconds—in order for you to apply that seemingly constant pressure.
This is visually evident under heavy loads. Untrained weightlifters will begin to shake and vibrate as they struggle with a challenging weight. An experienced lifter, though his or her muscles are undergoing the same on/off/refresh/on cycles, will seldom seem to shake even under insurmountable loads because the individual muscle fibers are stronger, because more muscle cells are being recruited, and because training has improved the refresh-rate with which essential biochemical elements can be restored to the cell to allow the next enervation.
Under psychological stress, I certainly could imagine this effect magnified.
I’ll do a little research the next few days and see what I can find.
And Merry Christmas, my friend!