BM continues to describe things almost exactly the same as Mankin.
BM:"......Isn't torque truely just a way to deliver the energy build in the hips/torso to the barrel.......Without "slop" in the linkages?........"
Mankin's model is all about how "transfer mechanics" make this happen, and one of his absolutes is that the shoulders needs to rotate all the way to contact, not stopping prior to contact on video.
"Rotation is the power source of a great hitter. But, generating power is not worth a dime if the batter's mechanics cannot efficiently transfer the energy into bat speed. Of what use would a 1000 horsepower engine be if the transmission slips? --- "
More Mankin:
Bat Speed -- Baseball Hitting Forum
"During my study I found that what separated the great hitters from all the rest was the mechanics they use to transfer their body rotation into bat-head rotation. The most talented natural hitter ever born cannot 'will' the bat-head around. Like the average player, the bat speed he attains will be governed by the forces his transfer mechanics applies to the bat. Even a great athlete like Michael Jordan could not overcome the poor transfer mechanics Hriniak taught him.
"There are two (and only two) forces a batter applies that accelerate the bat-head. They are from a "a circular hand-path" and "torque". An angular displacement of the batter's hand-path (a circular hand-path) transfers body rotation into bat-head rotation. Great hitters keep their hands back and allow body rotation to accelerate them into a CHP. Average hitters use the arms to extend the hands toward the pitcher. The straighter the hand-path, (or more linear) - the less bat speed generated.
"Doug, this site defines any cue or mechanic that causes the hands to be extended into a straighter path as "linear mechanics." Almost every film, video or book published on batting technique promotes mechanics that extend the hands, or knob, straight back at the pitcher. Therefore, for 18 years I had no choice but to teach linear mechanics and most coaches still do."
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Where I disagree with Jack Mankin is in how thw way the shoulders work is described. shoulder primarily TILT and their connection to the turning torso is enhanced by running start of bathead. They do not actively turn to then turn the bathead. The SEQUENCE here is important.
The shoulders in my opinion are best though of as the scaps which are slaved to the arms and they work to initally RESIST rotating with the hips. In this sense, the primary action of the shoulders is to support the arms and hands in torquing the handle while the hands stay back. At the same time the hips fire by rear hip thrust.
Shoulders RESISTING ("bypassed" in terms of powering rotation/ shoulders are "along for the ride"/shoulders are turned by connecting to torso as it unloads) lets the hands control direction and timing adjustment of the load so that when the torso unloads, there is quick acceleration/turning all the way to contact with well matched swing plane.
This handle torquing action gives the bat a running start that accentuates resistance and creates a better stretch and fire, then triggers effcient sequential unloading/connection/summation as opposed to a gate swing.
When you try to instead turn things actively with the shoulders, the hands can not stay back, torso loading is interrupted/rushed and unloading is less quick because bathead can not fire out quickly via running start.
The hand loading and early handle torque is an extremely powerful and precise control mechanism that is essential to get right in the high level swing like throw pattern. it requires shoulder action that resists turning synched with turning action powered by rear hip thrust.
BM:"......Isn't torque truely just a way to deliver the energy build in the hips/torso to the barrel.......Without "slop" in the linkages?........"
Mankin's model is all about how "transfer mechanics" make this happen, and one of his absolutes is that the shoulders needs to rotate all the way to contact, not stopping prior to contact on video.
"Rotation is the power source of a great hitter. But, generating power is not worth a dime if the batter's mechanics cannot efficiently transfer the energy into bat speed. Of what use would a 1000 horsepower engine be if the transmission slips? --- "
More Mankin:
Bat Speed -- Baseball Hitting Forum
"During my study I found that what separated the great hitters from all the rest was the mechanics they use to transfer their body rotation into bat-head rotation. The most talented natural hitter ever born cannot 'will' the bat-head around. Like the average player, the bat speed he attains will be governed by the forces his transfer mechanics applies to the bat. Even a great athlete like Michael Jordan could not overcome the poor transfer mechanics Hriniak taught him.
"There are two (and only two) forces a batter applies that accelerate the bat-head. They are from a "a circular hand-path" and "torque". An angular displacement of the batter's hand-path (a circular hand-path) transfers body rotation into bat-head rotation. Great hitters keep their hands back and allow body rotation to accelerate them into a CHP. Average hitters use the arms to extend the hands toward the pitcher. The straighter the hand-path, (or more linear) - the less bat speed generated.
"Doug, this site defines any cue or mechanic that causes the hands to be extended into a straighter path as "linear mechanics." Almost every film, video or book published on batting technique promotes mechanics that extend the hands, or knob, straight back at the pitcher. Therefore, for 18 years I had no choice but to teach linear mechanics and most coaches still do."
==========
Where I disagree with Jack Mankin is in how thw way the shoulders work is described. shoulder primarily TILT and their connection to the turning torso is enhanced by running start of bathead. They do not actively turn to then turn the bathead. The SEQUENCE here is important.
The shoulders in my opinion are best though of as the scaps which are slaved to the arms and they work to initally RESIST rotating with the hips. In this sense, the primary action of the shoulders is to support the arms and hands in torquing the handle while the hands stay back. At the same time the hips fire by rear hip thrust.
Shoulders RESISTING ("bypassed" in terms of powering rotation/ shoulders are "along for the ride"/shoulders are turned by connecting to torso as it unloads) lets the hands control direction and timing adjustment of the load so that when the torso unloads, there is quick acceleration/turning all the way to contact with well matched swing plane.
This handle torquing action gives the bat a running start that accentuates resistance and creates a better stretch and fire, then triggers effcient sequential unloading/connection/summation as opposed to a gate swing.
When you try to instead turn things actively with the shoulders, the hands can not stay back, torso loading is interrupted/rushed and unloading is less quick because bathead can not fire out quickly via running start.
The hand loading and early handle torque is an extremely powerful and precise control mechanism that is essential to get right in the high level swing like throw pattern. it requires shoulder action that resists turning synched with turning action powered by rear hip thrust.
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