And though I have shown this one before, this one also shows a number of important movements/postures of the hips/shoulders/lead arm/bat: englishbeyhitting.com/videoclips/Ort…
For much of my life, certainly as someone who has devoted much of my life either as an athlete, or as a teacher of athletes, I have tried to live by and advocate a number of fundamental precepts.
Here's some of these: Development is a function of hard work, an ability to overcome any and all obstacles that may serve to impede progress ["grit"]; an ability to defer the immediate gratification impulse which may retard long term goals and progress.
An ability to honestly look within so as to see the kinds of personal behaviors that may be actually causing a lack of advancement to a higher level of development.
Quite a few instructors/commentators talk about "getting extension." Almost inherent to this notion is hitters [non-elite level] moving the lead arm AWAY from the chest, i.e., creating more space between the chest/arm.
But. Here's clip of Manny Ramirez showing the upper lead arm getting CLOSER to the lead pectoralis [from lag to contact].
Question: Why is this happening and is this an indication of good or not so good things happening?
I have cited examples of what I have referred to as a quick "heel exchange" wherein the back knee /heel flex AS the lead heel starts to plant. This kind of synergistic action very much "fits" with the hip rotation that occurs from toe touch to full foot plant.
As I have argued, this makes sense from a physics/ physiological perspective in that this back leg action, helps to "free up" back hip rotation.
If you go to .43 here you can see Jose Sosa creating this action [slow it to .25]:
Here's a clip of Trout in the minors [2010]:
Go to about .32 and slow it to .25 [using the settings]:
Note a number of movement parameters. 1] Many advocate the concept of "loading back." Note that Trout shows very little loading back ,i.e,. the center mass is NOT displaced much back towards the catcher. 2] There is very little dynamic back scapula loading action.
Meaning that the loading is relatively "static" [my term]. 3] Note HOW QUICKLY he rotates the entire trunk [hips to shoulders] from toe landing to full foot plant.
On my website [as well as actually physically demonstrating this]I have written about the hips being..."the bottom of the swing plane." What does this actually mean? Well, here's a clip from the well known golf instructor Jim McClean who shows this pretty well:
I have seen over the last 10 or so yrs. a high degree of focus on the back leg and/or the back hip action as being THE KEY to creating very good hip rotation. This [of course] typically entails NOT any kind of rigorous argument of biomechanics or physiology.
No. It's simply an assertion along the lines of....."see...see this...THIS clip PROVES my assertion!!"
Well, yes. I do see the clip. And I do hear your assertion. But. You have not really convinced me.
I'm not at all convinced that ONE leg or ONE hip is THE causal link to high level hip rotation.