Your leading knee...

[nuke99]

I am wondering about left knee on the downswing component.

Some say Keep the bent and knee moves forward during downswing , some say straighten it .. during downswing.

what are the reasons for doing it?

[Mathew]

I am wondering about left knee on the downswing component.

Some say Keep the bent and knee moves forward during downswing , some say straighten it .. during downswing.

what are the reasons for doing it?

The Hips, knees and feet are responsible for letting the power package do what it wants to do without disturbing the stationary head.

I would like to extend this also to the backswing. As far as pop golf instruction is concerned on the backstroke, the right leg is set in stone and 'holds' a bend and resists the hip turn. This is completely wrong! If the legs do not move, the hips cannot either because the location of the hip socket is changing with its slide and turn. There can be no fixed 'holding' of a right knee.

Even in a right anchor variation the leg will actually straighten very slightly. There is actually less difference between the standard and right anchor variations as some might think. With right anchor, you produce less tilt which makes a 'flatter' rotated (and rotated doesn't always mean the same thing) backstroke shoulder turn. A non rotated shoulder turn is where you use lateral flexability of the body like to affect the shoulders locations on the backstroke like so...



As with standard, the rotated shoulder turn would be 'steeper'. The planes in a rotated shoulder turn means that the hips and shoulders turn on planes very close to parallel to each other. A rotated shoulder turn really means your not trying to put your rib cage into your hip at any point. I also believe this is the reasoning behind Homer Kelleys use of rotated shoulder turn in 7th edition as the right anchor variation makes the hip tilt and the shoulder turn, turn on 'flatter' planes anyways.

With the left leg on the backstroke, any hip tilt (which there always is - even with right anchor) on the backstroke will increase the amount of bend in the left leg and the hip turn will rotate the left leg around the ankle joint (this is cause - do not go for the effect) bringing the knee inwards. Also the bend in the knee again is not totally fixed as the hip turns and travels upwards.

It really is a dynamic thing the pivot !

Heres something new for you...The center of the hips very much move inside a sphere with the center being the head.

Assuming a parallel to the plane line hip slide on the downstroke (swingers) and slide variation - during the hip slide the knee will rerotate the opposite around the ankle joint and maintaining much of its 'increased from address' bend initially but the hips are tilted and because the hip turn's circular motion is now on an upslope (for lack of a better word) turning the hips will straighten the leg as it travels upwards.

Curiously enough also the right leg is affected by the hip slide. The hip slide variation where the slide happens kinda prior to the turn in both directions, the right leg actually straightens slightly more again (think Hogan). You will not get the 'sitting down look'.

However when using standard hip action on the downstroke where the hip slide and turn are more mixed (again for lack of a better word), you do get that 'sit down look' (think Snead) . Infact you get very much during the startdown what you had at address....And with the standard hip action the left leg will slightly decrease its bend from the top during startdown....

[nuke99]

Matthew, thank you for your detailed post! It does clear up plenty of fog for me.

Now we know that straightening the legs increase slant of the hips in that particular direction.

Say, if we use Standard hip action, the hip would have more slant throughout the swing. and after impact, the slant brings the plane/CF more UP ( from up and left)

In the case of Left Anchor .. The hip have slant on the back swing but more FLAT on the post impact bringing the plane more down and left.


A Left Anchor will give the Plane a more Up effort in upswing and " DOWN" effort in the downswing. thus more beneficial since the center of the plane is below the left shoulder . Thus the club, body should allow CF to bring the Thrust/bottom of the plane more "down " longer. Also, a flat hip turn in any direction have a "tendency" to move the weight , the torso and head in that particular direction. ( thats where the hula hula comes in and of course i said it too simply for you Matthew but you know what i mean.)

I feel the left anchor does help me so strike the ball better ie. better compression.

Though Standard feels more solid balance wise and helps to keep the head back and down.

So.. do you think I am doing it for the "right" reason?

[Mathew]

Matthew, thank you for your detailed post! It does clear up plenty of fog for me.

Now we know that straightening the legs increase slant of the hips in that particular direction.

Say, if we use Standard hip action, the hip would have more slant throughout the swing. and after impact, the slant brings the plane/CF more UP ( from up and left)

In the case of Left Anchor .. The hip have slant on the back swing but more FLAT on the post impact bringing the plane more down and left.


A Left Anchor will give the Plane a more Up effort in upswing and " DOWN" effort in the downswing. thus more beneficial since the center of the plane is below the left shoulder . Thus the club, body should allow CF to bring the Thrust/bottom of the plane more "down " longer.

I feel the left anchor does help me so strike the ball better ie. better compression.

Though Standard feels more solid balance wise

So.. do you think I am doing it for the "right" reason?

Whilst they can be done with difficulty (perhaps better used in 'speciality' procedures), the standard and right anchor variations have certain advantages over the double anchor and left anchor variations... mainly because the resulting hip action has an inability to tilt the spine enough on the downstroke. The resulting turn will do nothing to help keep the club onplane during the downstroke.

You may of seen Byron Nelson with his double anchor... It is actually falsely done because he still creates axis tilt, starts to straighten the left leg and because he did not have his head in a position at address where he could sucessfully maintain it, he lowers it and his whole machine bobs downwards through impact to create that knee variation.... whilst he was a great player - this is still a faulty procedure....

[nuke99]

Good thinking Matthew,

Now it made more sense to me... the application of right anchor and std anchor.

I always thought the BOB have something to do with momentum transfer... now i see it more clearly. Its amazing to knowthat the Anchor affects head movements as well, thats pretty huge i must say.

Matthew... your a real smartie and thank you for the explanation.

[Mathew]

Good thinking Matthew,

Now it made more sense to me... the application of right anchor and std anchor.

I always thought the BOB have something to do with momentum transfer... now i see it more clearly.

Matthew... your a real smartie and thank you for the explanation.

No probs