I'm not familiar with this term/concept. Can someone explain it to me in terms a simpleton would understand (or refer me to a post that will)?
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quote:Originally posted by Quincy:
The term 'handle torque' is a misnomer.
Torque is an external force applied to cause rotation.
One cannot applly torque to swing a bat although a batter could be spun with the application of force on the bat end.
This is a common misconception when the swing and bat speed are rationalized using the conservation of angular momentum.
quote:The torque is created at a point between the hands which is the center of that axis.
quote:Nyma-n seems to be revising quite a bit these days, even taking shots at his old faithful.
quote:Originally posted by Quincy:quote:The torque is created at a point between the hands which is the center of that axis.
If this were the case then the hands could only torque the hands.
In order to torque the bat there would have to be an axis at the bat head that is being rotated.
If torque is created between the hands, from where is it being exerted?
Are you trying to say that the bat is creating the torque ?
quote:Originally posted by jja:
The zero evidence, nothing, nada, that suggest that handle torque contributes to swing speed.
quote:No! The hands moving in opposite directions are torqueing the point between the two hands, they just happen to be attached to the rest of the bat and that is a good thing.
quote:Originally posted by jja:
Powertoallfields,
Sorry to disappoint you, but handle torque does not contribute significantly to bat speed period, not just at contact. Please read Adair to understand where my comments are coming from.
-JJA
quote:Originally posted by Quincy:
[]
Is this a comedy club?
quote:Originally posted by Quincy:
What you are describing is the reason that players go to batting coaches in the first place.
In your description, a player lines up the 'knocker knuckles' only to 'torque' his grip into the box grip.
This means that the batter will keep his elbows bent, dragging the bat and not extending his arms into the swing.
You must either be a comedian or your teacher is.
quote:Originally posted by Quincy:
You must be describing a very sophisticated super compound diametricly opposed double hand torque.
Front to back , back to front. Either way it is baloney.
It's a box grip, bat dragging, no arm extension swing.
The propensity to make bad contact damaging a wooden bat is heightened by this poor swing execution.
Or are you describing an aluminum bat only swing?
quote:Since there is universal agreement that aligning the 'knocker knuckles' produces the optimum grip,.......
quote:The hands moving in opposite directions are torqueing the point between the two hands,
quote:.....hitting is not that difficult--the more "catch phrases" the more confusion
quote:Once we establish that torque is not a significant contributor to swing speed,......
quote:Originally posted by jja:
You're right, video doesn't lie, but the difficulty of course is explaining correctly what is happening in the video. The blur that Richard is so impressed with is not caused by torquing the bat handle, i.e., pushing and pulling on the handle with the hands.
I'll give you a hint as to the real cause. You could take a one-handed swing and make the bat "blur" as well. With one hand you can't apply torque to the bat (except through differential pressure in the hand which is almost zero). What is causing that blur if not torque? The answer is actually easy, but requires a real understanding of the physics of swing dynamics.
Tom, "N" did the simulation in order to show that top hand torque doesn't exist. It's obvious the simulation series did that conclusively. Using his own words to claim that he supports top hand torque is irrational. I don't know why you're so impressed with the portion of the simulation where the mass of the back arm went to ZERO and it impacted the swing significantly. That's a conclusion that should be obvious to anyone.
-JJA
quote:Of course, those of us who know that swing quickness can be quantified via frame count reached that conclusion long ago.
quote:Originally posted by jja:
powertoallfields,
Would that do the trick for you? If I could show you a one handed swing that makes a rearward blur, would that convince you that handle torque as described by Richard et al does not describe the swing adequately?
quote:Originally posted by jja:
Tom,
Once we establish that torque is not a significant contributor to swing speed, that the big muscles of the body are the primary contributors (as expected), then the importance of torque starts to diminish rapidly. We're now starting to argue about second order effects that although they are important in their own regard, the importance is far less critical than items like good rotation, good synchronization of the upper body to the lower body, etc.
We've argued about the importance of "torque" on swing quickness for years as you know. Unfortunately, you have stated on numerous occasions that you don't believe that swing quickness can be measured, only that you know it when you see it. I believe swing quickness is easily measured by frame count. If you've got less than 5 frames of delay, you've got MLB like quickness. If you don't, then you don't have an MLB swing. It's really that simple. But given you don't agree in measurables, I don't see much value in debating this any longer.
TRhit, you've got it right. Please don't mention torque to your students. It serves absolutely zero value. There isn't any merit to any of these arguments.
-JJA
quote:Originally posted by jja:
powertoallfields,
I'm not sure I follow your reasoning. You believe that rearward bat blur is caused both by separation and handle torque or just handle torque? Please explain how separation would cause bat blur in the absence of handle torque.
quote:Originally posted by jja:
powertoallfields,
Would that do the trick for you? If I could show you a one handed swing that makes a rearward blur, would that convince you that handle torque as described by Richard et al does not describe the swing adequately?
quote:Only Richard defines frame count from "go". Ironically your post agrees with the position of most of us who believe his definition is inferior to the definition used by MLB scouts because there is too much uncertainty involved.
quote:Originally posted by XV:
Quincy, how does one check his swing if he is using "extension" to "power" the swing, in other words, "using the triceps" that you preach about?
How does one check his swing if he is using handle torque to power the swing?
The answers to these two questions will show what you know about a high-level swing, and how the human body works.
Hint: the answer is not the same for both questions.
quote:Yes, BlueDog, you got it!!!
quote:then you need to use that measure as well.
quote:
quote:If you recall, DMac talked about Drew Stubbs of Texas, who had a 5.5 frame swing coming out of Texas. The guy is fast as a deer, with a cannon of an arm, with incredible athleticism, and DMac forbid his organization from drafting the guy. The Reds did in fact draft Stubbs at 7th in the draft anyway, but so far his minor league career has been poor due to his hitting. So, yes, DMac's organization refused to draft him despite the fact he was widely considered to be the finest athlete in college baseball at the time all because the frame count of his swing was 5.5 frames.
quote:For all the non-participants out there, this really is very simple. If your player/child has a swing with less than 5 frames of delay (as defined by DMac or bbscout), then the scouts will look at your player/child. IF IT"S OVER 5 FRAMES, THEY WILL PASS. That's all there is to it. If your player/kid has a 6 frame swing, you'd better work on swing quickness if you want your player/child to get to a higher level. All of this other blather out there is just noise. You need to develop a quick (less than 5 frames of delay) and power (greater than ~75 mph swing speed) or you're out. It's as simple as that.
quote:Originally posted by Quincy:quote:Originally posted by XV:
Quincy, how does one check his swing if he is using "extension" to "power" the swing, in other words, "using the triceps" that you preach about?
How does one check his swing if he is using handle torque to power the swing?
The answers to these two questions will show what you know about a high-level swing, and how the human body works.
Hint: the answer is not the same for both questions.
The answer is actually quite different for each.
In the tricep swing, a batter does not check swing. He follows Joe McCarthy's advice. If you're gonna swing, swing.
In the box grip swing, the bat is in the check swing position for the majority of the travel. Swing is initiated late by rear arm tricep flex.
quote:This guy is using a "box grip". He also does not use tricep flex. He uses supination of the hand to "turn" the barrel. He does NOT extend his elbow. He tucks his elbow. He does this with his bicep and back muscles. The bicep also supinates the forearm and is a "better" supinator when the elbow is bent. Why would you even post a video in which you don't even see what is happening? Why would you post a video that, once again, proves yourself wrong?
quote:Scouts want BAT SPEED period. They don't care if its 10 frames as long as it results in consistently hard contact.
quote:Originally posted by Quincy:
How can he be using a box grip with only one hand?
For that matter, how can one align the knuckles of both hands when using one hand?
The video is not what I say is a good swing, it is an example of good bat speed with one hand.
He is short to the zone and long through it. I couldn't guess at his swing with two hands since it isn't shown.
Coach B,
Although I have had conversation with many players who have made a few dollars playing ball, every player is different so what works for a Sheffield, Burgess or Gomez may not help the next hitter.
I'd be a few fries short of a Happy Meal.
quote:He is not "long through the zone", however you define it.
quote:the Reds think they can make him a player,
quote:His hitting stats so far are dreadful as you know so DMac's admonitions were spot on, and this was before the draft.
quote:As you are also aware, the line of Stubbs (from Baseball America) was that he was an athletic freak, but there was a concern from "a few scouts" that he had a slow bat.
quote:OK, many scouts don't use DMac's techniques but I have been told that other organizations do count frames identically to DMac.
quote:Originally posted by jja:
Oh, and yes, bat speed is of course important, at least as important as swing quickness. But it isn't everything. The guys with the best bat speed play slow pitch softball, where they hit nearly 120 mph compared to approximately 100 mph as the best MLB speeds. That's what makes baseball so tough. You have to have quickness to hit a 100 mph Joel Zumaya fastball, but if you don't have any power, it's a tough road to the bigs. Our challenge as coaches is to teach both swing quickness and good bat speed.
quote:Originally posted by BlueDog:
I don't eat red meat...I'll take the McSalad....![]()
quote:Sure, DMac's son may very well need tip and rip to get to the bigs, but that problem is in the 99.999% percentile. The kid was captain of a strong Pac-10 school on a full ride. He got that far without tip and rip. He would not have gotten that far without the rest of the fundamentals. That's all that guys like me are getting at. The vast majority of kids we work with need the basics, and basics like maintaining the box can be useful for getting beginners to an intermediate stage. But the same drills I give a 9 year old beginner girl at 4'6" and 60 lbs isn't the same advice I would give a 6'4" 210lb Brett McMillan
quote:This is false. Assuming quickness and speed is already there,
quote:Originally posted by CoachB25:![]()
powertoallfields, I'm trying to think about how the hands and only the hands can create torque. I'm missing something in my physiology understanding. Pressures are being applied by various parts of the body and that knob demonstrates minimum displacement at best. Reference the jersey number.
quote:Originally posted by tom.guerry:
JJA-
Changing the subject again. You have no other alternative.
Handle torque exists at the mechanical level in mlb pattern swings.
N$$an's model shows how this force can quicken the swing.
Without handle torque there is no early batspeed, nor is there a control mechanism for late adjustment/plane matching.
Frame counting is not useful unless you know first you are comparing apples to apples, that is, counting frames comparing hitters who are already sorted into pattern, mlb or non mlb (such as "PCR").
Once sorted into pattern, landmarks can be identified consistently enough to apply some frame counting, BUT in any case whether or not the hitter has an MLB pattern swing is FAR more important than frame counting.
You should learn to recognize the pattern which bluedog is trying to explain to you.
No amount of swing quickening can enable a PCR swing to work in MLB. MLB requires early batspeed and late adjustment. Batspeed alone or trying to calculate percentage of batspeed due to torque is a waste of time. As Mankin says (below) you need quick acceleration around the entire swing plane, beginning with rearward acceleration.
PCR hitters who adhere to the PCR guideline that says torque does not exist in the swing are FORCED into a non mlb pattern which lacks early batspeed and can not be effective no matter how short you make the swing in terms of frame count. This is why PCR or "PCRW" is always OBSESSED with bat drag. There is no other alternative if you adhere to the guidelines.
How you conceptualize the pattern/goal at the mechanical level can have a big influence on how you communicate for teaching as Mankin's points out here:
http://www.batspeed.com/messageboard/14865.html
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"When practicing your swing, it is important to keep in mind that the purpose of swing mechanics is not to get the hips to rotate ahead of the hands and shoulders, or even to take the hands to the zone. The ultimate purpose of all swing mechanics is to attain maximum acceleration of the bat-head around the 'entire' swing plane.
"With this in mind, when setting up your practice program, I would suggest that one of the most limiting factors to a hitter’s development is his tendency to only concentrates on those mechanics that swing the bat-head forward toward the ball. However, in a high level swing, before the bat-head arcs forward toward the ball, it must first be accelerated rearward from its launch position behind the head back to the lag position (first 90 degrees of acceleration).
"Therefore, as you prepare to initiate your swing, I would suggest you envision mechanics that would accelerate the bat-head around the entire 180+ degrees to contact -- instead of just concentrating on mechanics that accelerate the bat forward the last 90 degrees (from the lag position).
"As a hitter initiates the swing, it is very tough to keep his hands back when he is concentrating on swinging the bat-head forward. If a coach would have the hitter envision the bat-head first accelerating back toward the catcher at initiation, the batters hands would have to stay back to accelerate the bat-head in that direction.
"When we ask the body to perform an athletic movement, the sub-conscious mind will set up a motor program for the rest of the body to aid in accomplishing the task.
"Therefore, I have found that if I can get the batter to correctly envision the bat-head first accelerating rearward to the lag position before he directs his energy toward the ball, the more likely he will generate the most productive hip and shoulder rotation to accomplish the task.
"If, on the other hand, the batter’s vision of the swing is only forward, he will have the tendency to first extend the hands. This is mainly accomplished by using the arms to thrust the hands and knob, which does not require good hip and shoulder rotation. With this vision of the swing, keeping the hands back is at odds with his forward vision. He now has to consciously think, “Hips First.” -- Using cues to override a batter’s natural tendency to think forward is not as effective as changing how they invision the swing.
"Once I feel the batter is starting to have the correct vision of the swing, I use the cue, “Rotate the heel (initiate lower-body rotation) – Rotate the bat-head (initiate the acceleration back toward the catcher”). I ask the student, “what must you do with the top-hand as your elbow lowers to accelerate the bat-head back at the catcher?” After a few attempts, they learn to hold back (or pull back) the top-hand at the shoulder and allow shoulder rotation to accelerate the bat-head back. When they start to get the bat to accelerate correctly, the hips just naturally rotate ahead of the hands and they have the “L” in the back-leg at contact."
Jack Mankin
----------
quote:3rd Dmac was the only scout who uses that gage. Scouts don'y count frames. Heck they don't have time to sit and count frames if they did.
quote:....there is only a small amount of torque from launch until contact.
quote:It does not get any better than this post!!!
quote:The kind of segmented sequential swing advocated by others sacrifice all these virtues.
quote:I have Mankin's video and I have read these posts as well as a lot of others on different forums.
quote:3. It keeps maintains the intersection of the bat plane and the trajectory of the ball the longest of any of the models
quote:1. It gives the batter the longest time to actually see the pitch before launching the swing
quote:2. It gives the batter the greatest bat speed through the strike zone.
quote:.....but if torque was so important, wouldn't you want both hands fully on the bat?
quote:Originally posted by jja:
Bluedog,
Don't forget, as Adair points out in his book, once the ball gets roughly half way to the plate, there is no more adjustability. The brain and muscles of the body can't fire fast enough to give you adjustability after that point. As Adair says with some humor, you could actually close your eyes after the ball is half way to the plate and it wouldn't make a bit of difference. So the intuitively obvious notion, something that most people would swear by, that you're changing your swing during the swing, is simply wrong. The body can't process the information in the brain fast enough and the muscles can't fire fast enough to effect these changes.
Yes, I do remember William' off hand comment. A personal preference to be sure, but if torque was so important, wouldn't you want both hands fully on the bat?
quote:Originally posted by Quincy:
The hand torque that he refers to is the weight of the bat head exerting force on the wrists causing them to bend. (rearward first blur often seen on video)
That has to be a really heavy bat, lol. What force? From what power source? Is there something in the hips that can put force on the wrists and cause them to bend??? Wow!
The arms extend to react and 'catch up' to the bat head speed only to have the wrists uncocked again by the weight of the bat head in motion. (second blur on video before contact)
Quinc,
What put the bathead in motion in the first place?
Notice the first move is pulling the bat down into the swing at aproximately a 90 degree angle to the bat.
quote:Originally posted by BlueDog:
Do we ever know if a MLB hitter had it all the way or made a late adjustment to the ball?....Probably not......But, I do think this was a late swing adjustment to the ball...![]()
quote:Originally posted by Quincy:
Both hands.
I often refer to this action as if the batter were throwing the bat at the base on the foul line in front of him.
quote:Originally posted by Quincy:
Both hands.
I often refer to this action as if the batter were throwing the bat at the base on the foul line in front of him.
quote:Originally posted by BlueDog:quote:....there is only a small amount of torque from launch until contact.
This could be the torque that helps alot to square up the barrel of the bat on the ball, though......Perhaps, the degree of torque is less important than the fact that there is some vs. trying to square up the barrel of the bat on the ball with hands connecting to the shoulder and rotating.....
quote:Originally posted by powertoallfields:
[QUOTE]Originally posted by Quincy:
The hand torque that he refers to is the weight of the bat head exerting force on the wrists causing them to bend. (rearward first blur often seen on video)
That has to be a really heavy bat, lol. What force? From what power source? Is there something in the hips that can put force on the wrists and cause them to bend??? Wow!
The arms extend to react and 'catch up' to the bat head speed only to have the wrists uncocked again by the weight of the bat head in motion. (second blur on video before contact)
Quinc,
What put the bathead in motion in the first place?
Notice the first move is pulling the bat down into the swing at aproximately a 90 degree angle to the bat.
quote:Originally posted by Quincy:
Casting would be over extension beyond the control of the hands.
This is why Ted Williams put so much emphasis on hand and forearm strength.
quote:The hand torque that he refers to is the weight of the bat head exerting force on the wrists causing them to bend. (rearward first blur often seen on video)
That has to be a really heavy bat, lol. What force? From what power source? Is there something in the hips that can put force on the wrists and cause them to bend??? Wow!
The arms extend to react and 'catch up' to the bat head speed only to have the wrists uncocked again by the weight of the bat head in motion. (second blur on video before contact)
Quinc,
What put the bathead in motion in the first place?
quote:If you have time to come into an open forum and post about Drew Stubbs, then you have time to count to 4 or 5 on quicktime. Most scouts dont bring a video camera to games, my dad did. He felt it was a valuable tool to help re-evaluate when he got home.
Scouts "Dont have time to count frames"...C'mon Jeff. How long do you think it takes to upload a video onto a laptop and then count to five?....three minutes?
Dmac used frame counting, but it was just another tool to help evaluate....Like a stopwatch. By no means was this his be all, end all in evaluating. The thing with hitters my dad loved were actions, power, and the ability to hit the friday night starter....things not often discussed in here....things most instuctors dont teach, recognize, or know anythng about.
quote:.....(at least for the 90 mph fastball Adair is assuming in his example).....
quote:The bat is put in motion by pulling the arms down into the swing (triceps). The wrists give or uncock because they are the weakest point on the pendulum.
quote:Originally posted by Quincy:
yup
Pulling the bat handle down at aprox a 90 degree angle to the bat will cause the bat head to whip.
quote:Originally posted by Quincy:
Both hands.
I often refer to this action as if the batter were throwing the bat at the base on the foul line in front of him.
quote:Originally posted by powertoallfields:quote:Originally posted by Quincy:
Casting would be over extension beyond the control of the hands.
This is why Ted Williams put so much emphasis on hand and forearm strength.
Nope!
quote:Originally posted by ShawnLee:quote:Originally posted by powertoallfields:quote:Originally posted by Quincy:
Casting would be over extension beyond the control of the hands.
This is why Ted Williams put so much emphasis on hand and forearm strength.
Nope!
power,
If you know why Williams said that, instead of just saying "Nope" why don't you enlighten us. Please richard
quote:"If a guy is a .250 hitter, he's going to hit .250. It's as simple as that."
quote:I don't believe that for a minute...unless he is unteachable, like some on this site!
quote:Originally posted by powertoallfields:quote:"If a guy is a .250 hitter, he's going to hit .250. It's as simple as that."
I don't believe that for a minute...unless he is unteachable, like some on this site!
quote:You don't torque the bat handle. the bat head torques the hands and wrists.
quote:Example:
Premier summer program head coach who also helps develop hitters has a nice group of players that include one born a natural hitter. They all go through the same drills and methodology. The result.
You have a group of nice hitters, and one who still stands out way above the rest.
quote:Originally posted by Quincy:quote:I don't believe that for a minute...unless he is unteachable, like some on this site!
You don't torque the bat handle. the bat head torques the hands and wrists.
You don't seem to be able to grasp what torque actually is.
quote:Originally posted by OLDSLUGGER8:
I guess all those top-line Pro's who share the same opinion/conclusion are all wet !!
Example:
Premier summer program head coach who also helps develop hitters has a nice group of players that include one born a natural hitter. They all go through the same drills and methodology. The result.
You have a group of nice hitters, and one who still stands out way above the rest.
quote:Great hitters are born.
quote:You can manipulate the bathead by dropping the bat, other than that.....something else has to manipulate direction and speed.
quote:Great hitters are born with great mechanics
quote:1st of all...Have you been to a high profile amatuer players game?
2nd 15 of 20 scouts will have a video camera.
quote:3rd Do they know what to do with what they videoed?
NO
quote:4th They video and then send the tape in to the office every two weeks and then start a new tape.
quote:5th The season hasn't started so I can sit a type about whatever I choose to.
quote:DOUG DIDN"T HAVE TO USE IT. HE KNEW A SWING AND HITTER WHEN HE SAW IT....AND YOU, being his son, KNOW THIS!
quote:After a few attempts, they learn to hold back (or pull back) the top-hand at the shoulder and allow shoulder rotation to accelerate the bat-head back.
quote:Originally posted by XV:
powertoallfields,
Quincy does not know what he's talking about nor does he know how the human body works. That is why you have to keep asking him questions. His answers will not be clear enough for you because he cannot explain what high level hitters do. He does not understand supination and pronation of the forearms. All he sees is triceps and biceps.
Quincy,
So first I need to accelerate the bat and THEN aim?
And how does the bat torque the hands if it is the hands that get the bat to the ball? Are you saying the bat gets the hands to the ball? What force that does the bat produce that "torques" the hands?
quote:Originally posted by Quincy:
Once the arms fire the bat to the point aimed at, the bat is a projectile. The weight of the bat head causes torque (external force causing the center to rotate) on the hands and wrists. I'm sure you have heard the term 'wrists uncocking'.
Are you saying the bat gets the hands to the ball?
By causing the wrists to uncock, yes.
What force that does the bat produce that "torques" the hands?
The weight of the bat head in motion produces an external force on the hands and wrists. That force is called torque.
quote:Originally posted by Quincy:
This article answers the question and gives you the math.
http://webusers.npl.uiuc.edu/~a-nathan/pob/AJP-Nov03.pdf
quote:You could take a one-handed swing and make the bat "blur" as well. With one hand you can't apply torque to the bat (except through differential pressure in the hand which is almost zero).
quote:Originally posted by Quincy:
pta,
you would do better to use a different term rather than 'torque'.
I'm sure there is something that you are feeling, but 'torque' is not serving your purpose in clarifying the point that you are trying to convey.
quote:Originally posted by Quincy:
That is propelling the bat head.
Ideally, the knob would move as little as possible in relation to the bat head. This would be the lever action sought.
The same principle applies when using a hammer.
quote:Originally posted by Quincy:
You are mistaken.
In frame 35, when he starts his arms down to the ball the handle follows causing the bathead to arc backwards (first blur). Notice his hands continue to contact.
On the inside pitch, the forearms would keep the bat inside. I have said this. This is the need for strong forearms and hands.
The wrists uncock in frame 42. Notice the second blur or the appearance of the bat disappearing in frame 44.
This is not torque. It is leverage.
quote:Originally posted by Quincy:
You are mistaken.
In frame 35, when he starts his arms down to the ball the handle follows causing the bathead to arc backwards (first blur). Notice his hands continue to contact.
On the inside pitch, the forearms would keep the bat inside. I have said this. This is the need for strong forearms and hands.
The wrists uncock in frame 42. Notice the second blur or the appearance of the bat disappearing in frame 44.
This is not torque. It is leverage.
quote:
1. Mechanics. a rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third.
quote:
1. Mechanics. something that produces or tends to produce torsion or rotation; the moment of a force or system of forces tending to cause rotation.
quote:Originally posted by jja:
Powertoallfields,
With one hand, you can't have torque caused by the hands. As described by Mankin, this so-called handle torque is caused by one hand pushing in a direction perpindicular by the bat, the other hand pulling in a direction opposite to what the other hand is doing. That's handle torque as defined by Mankin and thus isn't torque without two hands on the bat.
The reason the bat head moves one direction while the handle the other is due to rotation of the torso. As the body rotates, the figure skater tends to do exactly what you described, the bat head flies out while the handle goes the other direction. This isn't due to the hands manipulating the bat. You can't have this effect without rotation of some kind. But you could, for example, just rotate your arm to whip the bat much like when trying to crack a towel or a whip and the bat head would also try to fly out. But that effect is absolutely, 100% not caused by active manipulation by the hands. That's why one hand can cause this effect despite the fact there isn't active torque acting on the bat by the hands.
Hope this helps. This is tricky stuff, which is why most people don't get the details right.
-JJA
quote:Originally posted by XV:quote:Originally posted by jja:
Powertoallfields,
With one hand, you can't have torque caused by the hands. As described by Mankin, this so-called handle torque is caused by one hand pushing in a direction perpindicular by the bat, the other hand pulling in a direction opposite to what the other hand is doing. That's handle torque as defined by Mankin and thus isn't torque without two hands on the bat.
The reason the bat head moves one direction while the handle the other is due to rotation of the torso. As the body rotates, the figure skater tends to do exactly what you described, the bat head flies out while the handle goes the other direction. This isn't due to the hands manipulating the bat. You can't have this effect without rotation of some kind. But you could, for example, just rotate your arm to whip the bat much like when trying to crack a towel or a whip and the bat head would also try to fly out. But that effect is absolutely, 100% not caused by active manipulation by the hands. That's why one hand can cause this effect despite the fact there isn't active torque acting on the bat by the hands.
Hope this helps. This is tricky stuff, which is why most people don't get the details right.
-JJA
I can torque/turn/twist, whatever word you want to use, the bat with my top hand. It's called supination. I can torque the bat with my bottom hand. It's called pronation. It's what that guy is doing in the one-handed drills video. But those balls are going nowhere, because he's not using BOTH hands to work in OPPOSITE directions.
quote:The reason the bat head moves one direction while the handle the other is due to rotation of the torso.
quote:Originally posted by Quincy:
If what you claim is true, then why is his first move with his arms moving downward instead of the 'hand torque' that you believe exists?
From frame 33 both arms are in motion.
If you think that wrists uncock when the top hand passes the bottom hand, you are in need of some very basic lessons in leverage.
In plain english, you just don't get it.
You have some preconcieved notion that you are trying to give credence to, but are failing miserably.
quote:Originally posted by Quincy:
The more you type, the more you prove that you don't know what you are talking about.
It seems your posts have become keyboard flatulence.
lev·er·age (lvr-j, lvr-)
n.
1.
a. The action of a lever.
b. The mechanical advantage of a lever
torque 1 (tôrk)
n.
1. The moment of a force; the measure of a force's tendency to produce torsion and rotation about an axis, equal to the vector product of the radius vector from the axis of rotation to the point of application of the force and the force vector.
quote:If the torso is causing this blur
quote:Originally posted by Quincy:
You really don't get it.
I'm shocked at the lack of understanding of the simplest terms. If you think that leverage and torque are the same thing after looking at the definitions, then you are blinded by your false belief.
I sincerely hope that no one is paying you for this pseudo-science that you preach.
quote:Originally posted by Quincy:
You're less inteligent than I had imagined.
Lever + force exerting rotational pressure on an axis.
I'll break it down to its simplest form.
If leverage and torque are the same, where is the torque in a simple lever?
quote:The torque is at the pivot point.
quote:Originally posted by OLDSLUGGER8:
I hear there is a great sale on lab coats on ebay.....just make sure you ain't late for science club, and don't get any diamond dust on them.
You guys never played baseball![]()
quote:Originally posted by ShawnLee:
JJA and Quincy,
As least one of those buffoons is Richard, probably both. You know there's no point in arguing with stupid people. They just drag you down to their level and beat you with experience. That's how Richard always seems to think he's winning the argument. He's not smart enough to tell the difference.