Internet Sources Next we turn to the philosophy of Immanuel Kanta watershed figure who forever altered the course of philosophical thinking in the Western tradition. Long after his thorough indoctrination into the quasi-scholastic German appreciation of the metaphysical systems of Leibniz and WolffKant said, it was a careful reading of David Hume that "interrupted my dogmatic slumbers and gave my investigations in the field of speculative philosophy a quite new direction. This central idea became the basis for his life-long project of developing a critical philosophy that could withstand them.
Brian Manzella's Release Ideas Click here to go to the home page.
This review paper is targeted at a critical review of Brian Manzella's release ideas. In this scholarly review paper, the term "release" will refer to many aspects of a golfer's release action - and it will include the club release phenomenon, the release of the arms during the downswing, and An analysis and a critique of a demonstration also release of the hands and clubhead through the impact zone.
Brian Manzella is a New Orleans-based golf instructor, and he also runs a golf forum  devoted to his golf teaching ideas.
In fact, Brian Manzella freely admits that his golf forum is not open to a discussion of the teaching ideas of other golf instructors, and he frequently reminds forum members that his golf forum is primarily intended to promote his golf teaching philosophy.
Forum members who transgress his censorship rules get promptly banned from his forum. Brian Manzella has a long history of exploring golf instructional ideas and he was originally very much influenced by Homer Kelley's TGM book  and his TGM concepts, and he was formally certified as an authorized TGM instructor.
However, he has adopted a decidedly anti-TGM stance in recent years and he now derisively refers to TGM golfers as "handle-draggers".
He has also personally organised, and moderated, two Brian Manzella AntiSummit conferences  where a panel of golf researchers give short presentations related to their field of expertise and where they also openly answer questions submitted by conference attendees.
I am not certain when Brian Manzella first developed his "new" ideas regarding the release action, and I also do not clearly understand the precise role that Mike Jacobs  has played in the development, and maturation, of Brian's "new" ideas regarding the release action.
I actually first became aware of the "rotation-about-the-coupling point" release concept when Mike Jacobs posted links to his personal videos  in a Brian Manzella golf forum thread devoted to the topic of the "release". I do not have any insight into the degree of concordance between Brian Manzella's and Mike Jacob's opinions regarding the "release" and I will therefore arbitrarily ignore Mike Jacob's expressed opinions in this review paper, and I will only refer to Brian Manzella's opinons as they are expressed in his videos and golf forum posts.
Brian Manzella has produced a number of freely available videos relating to this topic and he has also produced an "Ideas About the Release" video that can be purchased from his golf shop . Brian Manzella's ideas about the release In a post in his golf forum , Brian Manzella summarised his ideas about the release in the following short paragraph-: When the club has some speed from this rotation, and the clubhead is level or slightly lower than your hands, use everything you have to pull the grip off of the club as your hips move left, open, and you lose all of your forward bend.
Brian Manzella divides the downswing into three phases, and he has seemingly defined those three phases based on a research paper published by Steve Nesbit .
Steve Nesbit studied the hand arc path hub path of four amateur golfers and he noted that the hand arc path was not perfectly circular. Here is a diagram showing the hand arc paths hub paths of the 4 amateur golfers who participated in the Nesbit research study.
Steve Nesbit claims that the hand arc path reaches another maximum radius point at roughly the P6.
Three phases of downswing action - capture images from the Steve Nesbit paper  The red curved path represents the hand arc path, the green curved path represents the clubhead path and the straight blue lines represent the positional alignment of the clubshaft.
Downswing phase 1 occurs between the end-backswing position P4 position and the end of the early downswing position P5 position when the left arm becomes parallel to the ground and the clubshaft becomes vertical, or near-vertical, to the ground.
Downswing phase 2 occurs between the P5 position and the P6-P6. Downswing phase 3 starts roughly at the P6-P6. I will later demonstrate why I believe that one cannot arbitrarily make full-proof scientifically conclusive claims about golf biomechanics and any golfer-applied torques that could be involved in the release of a golf club - based on a research study of the hub path patterns of 4 amateur golfers.
Any intellectual claims about golfer-applied torques are inferentially derived claims that are the end-result of a mental process of personal interpretation of a study's data - and those inferentially-derived interpretations can be deemed to be selective personally subjective interpretations.
Here is an example of how Brian Manzella selectively analyses the downswing action of Lexis Thompson - http: Lexi Thompson at the end-backswing position - capture image from the Brian Manzella video Note that Lexi Thompson is ultra-flexible and she can get her left arm to the 12 o-clock position by her end-backswing.
Those two biomechanical phenomena allow Lexi Thompson to get her left arm far back to the 12 o'clock position. Brian Manzella has demonstrated the three downswing phases by using different colors - red arrows for phase 1, blue curved arrows for phase 2, and green arrows for phase 3.
Lexi Thompson at the end of phase 1 - capture image from the Brian Manzella video Note that Lexi Thompson's left arm is parallel to the ground and that represents the end of her early downswing, and the end of phase 1.
So, let's consider the "forces" that Lexi Thompson is applying to the grip end of her club during phase 1. Brian Manzella claims that she is using a biomechanically-induced "force" to pull the grip end of the club in a direction that follows the direction of the red arrows and he states that she is applying a pulling-force that is directed in a direction that is tangential to the hub path.
I think that it is more factually correct to state that the "force" is being directed along the circumference of the hand arc path in the direction of the red arrows.critical analysis The purpose for writing a critique is to evaluate somebody's work (a book, an essay, a movie, a painting) in order to increase the reader's understanding of it.
A critical analysis is subjective writing because it expresses the .
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