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Big List Of Golf Terminology From time to time I'll mention things below. This list should make for a handy reference. Abbreviations and Preferred Terms DL/DTL - Down the line (view) FO - Face-on (view), also called caddie view RE - Rear (view), also called posterior view Inclination to the Ground - Too many people use the word "spine angle." Your spine changes its flex throughout the swing. "Inclination to the Ground" or "Inclination" is a far better phrase. Motions Basic Motion = "Chip Length Swing" = Clubhead goes two feet back and two feet through (kinda like a chip) Acquired Motion = "Pitch Length Swing" = Clubhead taken back until the right forearm is parallel with the ground and then parallel with the ground again on the follow through ("9-3"). Total Motion = Full golf swing. Note that I define "chip" and "pitch" shots when talking about the short game differently than this. This use of "chip" and "pitch" simply relates to the way the wrists will work in these motions as well as the length(s) of these motions. Ball Flight Laws Science has revealed that the "old" ball flight laws are incorrect, and that: a) the starting path of the ball is primarily and overwhelmingly dictated by the clubface angle at impact b) the ball curves due to the relative difference, if any, between face angle and clubhead path at impact We simply say this as "the ball starts roughly where the face is pointing and curves away from the path." Nine Types of Ball Flight "Draw/Hook" and "Fade/Slice" are interchangeable in the drawing below. Italics represent shots that don't curve. If the golfer is lined up at his target, bold represent the most usable shots within each trio. I wrote an article here. Positions or Alignments in the Golf Swing "Trailing" and "Leading" refer to the direction of the ball when viewed from a face-on angle, with "leading" being the left side for a right-handed golfer. Top and bottom refer to the grip, with the "top" being the left hand for a right-handed golfer. These "A" positions stand for "alignments" and will often be written as "P." Since launching 5 Simple Keys we've changed our use of these terms to "A." A1: Address A2: Club shaft parallel to the ground on the takeaway A3: Lead arm parallel to the ground on the takeaway A4: Top of backswing A5: Lead arm parallel to the ground on the downswing A6: Club shaft parallel to ground on the downswing A7: Impact A8: Club shaft parallel to ground on follow-through. A9: Right arm parallel to ground on follow-through. A10: Finish Accumulators in the Golf Swing 1: A bent right elbow 2: Leading (top) wrist cock 3: Angle between shaft and lead forearm (expressed as rotation about that lead forearm) 4: Angle between lead arm and shoulders 5: The trail forearm and shaft (i.e. the wrist angle)* * See this thread for more. It's not an official accumulator. Each accumulator has a corresponding pressure point. Pressure Points in the Golf Swing 1: The heel of the bottom hand where it touches the top hand or grip 2: The last three fingers of the top hand 3: The first joint of the bottom hand index finger where it touches the grip 4: Lead armpit (or where the lead arm touches the chest) 5: Trailing armpit* * MORAD folks add this one. There's no corresponding accumulator but it lets them talk about the trailing elbow separating (or not) from the chest. Hinging Methods in the Golf Swing Horizontal Hinging: The clubface rotates faster than the angle of the plane, as if around a "horizontal hinge," and at A8 will often look like this: | or even \ as viewed DL on a right-handed golfer. Angled Hinging: The leading edge of the clubface rotates and remains relatively square to the plane and/or parallel to the spine. At A8 it looks somewhat like this: /. Vertical Hinging: The face of the club "counter-rolls" and remains facing toward the target or the sky. Used in some very short shots and not much else. At A8 it looks like this: —. Shaft and Elbow Plane In a one-plane swing the head and hands will follow or stay between two lines: the shaft plane and the elbow plane. Both can be seen here in green and red. Hands follow the shaft plane until the right elbow begins folding, at which point they move up to the elbow plane. Impact is somewhere between the two and the clubhead and hands should exit the far side of the body. Swing Directions Swing directions describe the orientation of the baseline of the swing plane (also called the "horizontal swing plane" or HSP). INward - For a right-handed player, an HSP oriented to the left. At A6 the clubhead is often right of the hands when viewed DL. ONline - For a right-handed player, an HSP oriented relatively square to the stance. At A6 the clubhead is often covering the hands viewed DL. OUTward - For a right-handed player, an HSP oriented to the right. At A6 the clubhead is often left of the hands viewed DL. Reference Posts Deep Hands Clubface Square to the Plane Hip Slide Maintaining the Flying Wedge Use of PGA Tour Players I support the use of PGA Tour players to teach something to someone, or to serve as a basis for comparison. For example, if someone needs to see a good example of a player pushing his hips forward or keeping his club on plane, a video can help. I do not support the use of videos of PGA Tour players as definitive proof of any theoretical decisions. For every video you can dig up that shows one thing, someone else can dig up another video from another year or another angle that shows something else - often involving the same player. PGA Tour players are freaks of nature, and what they do, and are capable of doing, is often not proof of anything beyond their own freakish abilities. Arguments which devolve into "Yeah, well look at this video. See, he does it here!" don't help anyone. Unfortunately, it's an easy trap into which many fall, myself included from time to time. Less reliable is what PGA Tour players say they do. Quite often, they're wrong. It's shocking really how often what they feel they're doing is either slightly or totally different than what science, video, or photos reveal that they're actually doing.
iacas posted a topic in Swing ThoughtsIf you'll allow, I'd like to stray from the "op/ed" nature of this column for a moment to cover the "positions" or "Ps" in the golf swing. For many this will be review, but many will hopefully learn about these "positions" in the golf swing. Update 2012-02-23: In the 5 Simple Keys® (5SK) world we've chosen to call these the alignments in the golf swing, as we wish to put less emphasis on "positions" and view them more as checkpoints at which some measurements might be taken. I'll choose Charlie Wi for many of the pictures simply for consistency's sake and because I know this particular swing illustrates something at A6. A1 - Address Very simple one to understand, as A1 is the setup or address position. You can judge things like posture and overall setup, ball position, handle location (too close to the thighs, leaning back or forward too much), the hang of the arms, weight location (toes/heels as well as forward/back). A2 - Shaft Horizontal (Backswing) This position allows you to look at how quickly the shoulders are turning, how quickly the wrists are hinging/cocking, how much the wrists and forearms are rolling, whether the head is translating or staying relatively stable, how much the shoulders have turned, etc. This is one of the somewhat "looser" positions because the wrist cock will determine the location of A2. For example, Charlie Wi hits a fairly normal A2 position (albeit one with a lot of depth): But Rickie Fowler's A2 looks funny because he doesn't roll his forearms at all in the start of the backswing: Steve Stricker sets his wrists later, so the shaft "ascends" more slowly and "arrives" at A2 a little "late." Late wrist sets will tend to look like the club has been taken more inside or under than it really has, and early wrist sets will tend to look the opposite. A3 - Lead Arm Horizontal (Backswing) When the lead arm is parallel we can check the wrist cock (typically around 90 degrees), we can check the shaft plane and the plane of the hands (where are they coming out of the body - base of the bicep? Top of the shoulder? Mid-way?), we can check relative shoulder turn (some people stop turning here, some haven't turned enough because they've just swung their arms back). We can check the head, the shoulder pitch becomes evident down the line, and more. Note that Rickie's backswing is a product not of quickly cocking the wrists but of allowing very little rotation of the forearms or wrists ("accumulator #3" in TGM). His left arm to shaft measurement at A3 is only 107 degrees). Of course, Steve Stricker's is even more: A4 - Top of the Backswing Wherever this player reaches the top of the backswing, that's A4. Note that a shaft isn't necessarily "laid off" if it points left of the target before the shaft reaches horizontal, nor is it surely "across the line" if it is pointing right but past parallel. Many things can be checked at A4 - wrist conditions, shoulder tilt, any translation off the ball, plane, right elbow flex, left arm position, weight/pressure/CG location, etc. A5 - Lead Arm Horizontal (Downswing) This position can tell us many things as it's early enough in the downswing that a player can still make changes much more easily to affect A6 and A7. How far "in" is the left arm? What's the shaft done based on the wrist conditions? How's the right elbow working - towards the belt buckle or staying behind the rib cage? Have the hips begun going forwards? Has the head started tipping back? What's the plane of the shaft like? Note that in Rickie Fowler's case, "lag" appears excessive but it's an optical illusion. He's simply "laid the shaft down" so much that the face-on view is not a good indicator of lag. See the blue lines on the left? Imagine they represented his left arm and clubshaft. Imagine he rolled his left forearm and wrist enough to lay the shaft down that much. Look at how much "lag" it would appear he has from the face-on view! In reality, "lag" should be measured from perpendicular to the plane containing the three points: left shoulder, left wrist, clubhead. It might surprise you to know that Rickie doesn't have a ton more lag than good ol' Steve Stricker, but the camera position and the "laying the shaft down" throws you off: A6 - Shaft Horizontal (Downswing) A key position. There are a lot of things you can check here, but one of the keys is where the clubhead is relative to the hands. Charlie is pretty well "on-plane" here: Note the two lines I've drawn. If your clubhead appears beneath or inside of your hands - the location of the green line - you're quite likely going to send the path of the golf club out to the right. If your clubhead is outside your hands or above the plane like in the right, you're quite likely sending the clubhead path left. The clubhead in the red case is "over the top" of the hands plane - one of a few definitions for that term ("over the top"). Though A6 is highly sensitive to camera position, it's clear that Steve Stricker is going to "hit out" at this ball, while Rickie Fowler - despite "laying the shaft down" heavily from P3.5 to P5 - is coming down pretty well on-plane. Skipping ahead a little bit, I think this picture will make a little sense to people. I've traced the clubhead in both Steve Stricker's swing and Charlie Wi's (Rickie's is similar to Charlie's). As you can see, the tangential line at the bottom of the swing arc in Steve Stricker's swing - called the "base plane line" or "base line" - is pointed well to the right. If you imagine creating a plane on the arrows, the base of it would rest along the blue arrow. Charlie's (and Rickie's) plane is much more "at the target" than Steve's. Steve Stricker plays a ball that pushes and draws a little, and catches the ball just in front of of low point to help the clubhead go a little left to take some of the draw curve off of his golf ball. Final note on P6: good golfers tend - nine indeces on downward (with increasing frequency) to get "under" plane or "stuck" (hello, Tiger Woods!), while poor golfers tend to be "over." A7 - Impact Things to look for here are fairly obvious: clean contact, clubhead traveling in which direction (ideally +/- a few degrees), handle leaning forward an appropriate amount (0 to 10 degrees, rarely more; less with the longer clubs, more with the shorter ones), etc. A8 - Shaft Horizontal to the Ground on Follow-Through A9 - Lead Arm Horizontal to the Ground on Follow-Through In virtually every golf swing, the shaft is horizontal to the ground before the lead arm, but the two are sometimes very closely timed. These images are from before A8 and A9, but honestly, A8, A9, and A10 are almost never used in discussing the golf swing because they're simply an indicator of what's come before. They are however quite useful in instruction, as a student modeling a position at A8 or A9 will introduce changes to his motion prior to A7 which will have (if the instruction is correct) positive results. A10 - End of Swing Again, debatable, but for all practical purposes, A9 is almost never discussed. It's too easily "faked." :-)