Creating proper downswing forces for maximum distance.

[@grahamjones7371]

Hi Tony Thanks for your great videos, imho and this is something that never seems to get mentioned,is that in all sports/athletic actions groundforces, big muscles and indeed whether we use both arms is mainly proportional to the effective weight of the implement being swung/thrown etc ie in badmintion, a very light implement hitting a light implement max speed can be achieved mainly with the wrists and you can jump smash, even in tennis the fastest servers are in mid air at impact. Im no scientist but Im sure the effective weight of 7 iron swinging at 90mph is immense!

[@TonyLuczak]

graham jones you got it. Volleyball spikes too

[@briandyer6826]

Great stuff tony! So happy I found this channel! I’m a self taught golfer and my question is have I been brain washed for the last 4 years since I have taken up the game?! What I mean by this question is simply I have read, watched and practiced the golf swing from the perspective of the lower body is the “keys to the engine” Should I change my thought process and focus more on what my arms do and in a sense let them drive the swing?

[@TonyLuczak]

Brian Dyer I would. The entire body system has to work together in the proper sequence. The weakest muscular link are the hands so it starts there.

[@grahamjones7371]

Thanks the prompt reply Im self taught but try to relate golf to other sports, It seems obvious to me that a bent right arm is going to produce more speed and that but that the left shoulder/arm will deal with the strength/swinging weight. I recently had my first trackman and i could hit a 7 iron 110yds with my left arm only and 90 yds with my right arm only.Have you done any tests on this and would you expect to hit it further right arm only

[@TonyLuczak]

The left hand operates as a fulcrum allowing for the application of a pendulum, the right functions differently and works more diagonal and horizontal.

[@propilot7428]

Great stuff! You have it!

[@Rd-bi7vr]

If the ground forces don’t work then why does the golf ball travel shorter distance when the feet are together? Only when the feet are apart do we activate the ground and hit normal distances.

[@TonyLuczak]

sambhu sivalenka they do work as a result of the forces we put into the ground and the horizontal friction.

[@mrkipling3841]

Good stuff as usual Tony. Your channel has certainly come a long way. Gone are the days of the coffee stained curtain and the drums in the back ground. Youve even got frame in frame video and on screen graphics. Way forward my man!!

[@TonyLuczak]

Mr Kipling I’ve learned a lot in the last year!!!

[@LeeComeauxGolf2017]

Mass is the key component in the Force equation speed and velocity don’t dictate the result only the mass controls all that .

[@TonyLuczak]

F=M*A

[@TonyLuczak]

Don't forget you have momentum p= mv, then you have impulse conditions that occur with the club at impact F delta T = M delta V . That is how velocity plays a role in force. Just because there is no acceleration doesn't mean that a force doesn't exist.

[@mrkipling3841]

With the above in mind, would a flatter swing not be more beneficial? I mean as a means to creating a more direct path away and back to the ball. Would this not take away some of the variables of having too much arm lifting in the swing? I am purely a layman Tony, so please dont crucify me if what I'm asking sounds dumb. My swing thought here was to have a hinging effect, ie back to target on backswing the just rotate, having the arms flung off the chest by centrifugal? (whatever force) and into the ball. So something like a 45 degree angle down. Would this also not keep the clubs lie angle on the correct path?

[@TonyLuczak]

Mr Kipling great questions. Typical engineering answer is that it depends! On relative joint mobility of the individual and their ability to maximize muscle activity.

[@TonyLuczak]

This is why I’m really excited about having access to the human performance lab. We should be able to come up with a range of optimal conditions that golfers can utilize.

[@jboy5744]

One question, did you say a bent arm generates more speed? No math involved but a straight arm the shoulder would move slower than elbow which moves slower than the longest outstretched finger. Which is me saying the longer path is being travelled at a higher speed. Is that wrong?

[@TonyLuczak]

Over Thetop the longer the arm, the more work is required to move the entire arm. If we take a shorter arm, it takes less work to move. Because the arc is shorter in the bent arm, and time is in the denominator for angular velocity, the longer it takes the slower the angular velocity. This using the bent or throwing capability of the bent arm is more effective than trying to throw a ball with a start arm motion. When you add the momentum of the straight arm to the mix, driving with the bent is more efficient.

[@TheDentalspa]

Do you have a golf school schedule for 2021

[@TonyLuczak]

Not yet. Waiting to see what happens with vaccines.

[@Rd-bi7vr]

If ground forces don’t help, then why do we hit the bal

[@TonyLuczak]

sambhu sivalenka GRFs are needed, but they are resultant forces.

[@golfpro835]

A lot of talk and graphics for a simple logical concept.

[@cebc40]

Tony, why dont you block this Jeffrey Mann fellow. He comes on a lot of your vids, which you put up for free and your time and effort, and just slates everything you say. People enjoy your vids and find them interesting, personally i dont know why he follows you if he disagrees with most things you say, he needs something better to do!!!!!

[@TonyLuczak]

Well, according to other sources, he tries to do this to other instructors and just repeats the same reference to the golfing machine. I know what I know and I know that there is more to learn. I now have our human performance lab equipment including mo-cap, force plates, and foresight GC2 & HMT. I'm scheduling a meeting with Dr. Kwon at TWU, so this is just beginning!

[@jimgeorge72]

Tony, Jeff Mann knows more about the golf swing than anyone. I have studied and played golf for about 50 years, have a PhD in exercise science, and have spent more time with Jeff than any other golfer. He is a golf genius and if you really want to understand the golf swing, he is very open to dialogue.

[@TonyLuczak]

Excellent Dr. George what is your area of expertise? would like to read some of your publications.

[@jimgeorge72]

I have mostly studied exercise testing methodology and functional fitness topics. I'd be happy to email you my CV, if interested. I have also taught golf instruction classes for 30 years and published a golf book for my students. This background all led me to Jeff Mann, who knows more than anyone about the golf swing. It would be fun to discuss your upcoming studies. I am sure Jeff could provide the most useful feedback as compared with any current golf scientist.

[@TonyLuczak]

Jim George excellent! We are looking at functional movement assessment using a/r and wearable sensors. Unfortunately, Jeff has decided to take an attacking position instead of open discussion. With our current research projects, I’m up to 5 projects and really don’t have time. Have you seen DorsaVi’s new athletic movement assessment?

[@ImperfectGolfer]

I think that your explanation is totally nonsensical. You have not demonstrated why a golfer needs to create ground reaction forces in the vertical plane in order to swing a golf club downwards-and-forwards during the downswing so that the clubhead path forms an arced path across the front of the body during the downswing and followthrough. You have also not shown that there is any correlation (or causal connection) between the vertical ground reaction forces measured during the downswing and the motion of the clubhead in the horizontal plane in a targetwards direction. You also seem to be implying that any vertical ground reaction forces measured are reflective of the downward-and-forward motion of the right arm/clubshaft during the downswing, but you are not providing any scientific evidence to support that hypothesis. You have also not attempted to explain why the vertical ground reaction forces measured under the right foot goes up dramatically during the backswing action when the right arm/clubshaft is moving upwards (implying an inverse relationship between the magnitude of the vertical ground reaction force measured under the right foot and the direction of motion of the right arm/clubshaft). Also, you have not attempted to explain why the vertical ground reaction forces measured under the right foot decreases dramatically during the early-mid downswing - when the right arm/clubshaft is moving downwards-and-forwards. You also talk about creating a "flat spot" in the clubhead arc near impact, but what has that desirable phenomenon got to do with the topic of creating vertical ground reaction forces - you have not even provided a tentative explanation? You also use the Ferdinands paper to justify your "belief" that one can move the clubshaft faster downwards-and-forwards in the early-mid downswing using the right arm - rather than the left arm (which is released by an active pivot action in a lead arm swinging technique). However, you have not provided any scientific measurements to support that hypothesis. Ferdinands did not make any actual measurements of the speed of motion of the left hand downwards-and-forwards along the left hand path in his research study (which is also only a theoretical construct based on inverse dynamics) and he only calculated the speed of left arm abduction. However, a TGM swinger (lead arm swinger) powers his golf swing via a pivot-induced release of PA#4 (release of the left arm) and the left arm mainly moves downwards during the early-mid downswing and there is very little motion in the plane of left arm abduction. So, you shouldn't be comparing the velocity of right arm adduction to the velocity of left arm abduction when trying to support your wrongheaded "belief" that a professional golfer powers the golf swing with the right arm. You also stated that flexion-extension creates more clubhead speed. I presume that you are referring to the motion of the right wrist in the later downswing, but where is the "evidence" to support that wild "belief"?

[@alext1974]

Jeffrey watch this video....proof of a pga tour player(Aaron Baddeley) advocating right arm controlled swing. The swing is perfect as long as it is in rhythm and balance. kzbin.info/www/bejne/mn2rao2Ed6ZnoJI

[@ImperfectGolfer]

Alex - where is the "evidence" that Aaron Baddeley is advocating a right arm controlled swing in that video? One cannot hear what he is saying in that video where he is performing a right arm-only swing action. Also, in a TGM swinging action (lead arm swinging action) where power is supplied via the pivot-induced release of the left arm (release of PA#4), most of the directional control of the clubshaft is supplied by the right arm (via PP#3 tracing the straight plane line throughout the entire downswing action). Therefore, nearly all PGA tour golfers can be perceived to have a right arm controlled swing action. However, that doesn't mean that they are using a right arm swinging action with a reactive pivot motion - as promoted by Tony Luczak - where the right arm is the main power source.

[@alext1974]

kzbin.info/www/bejne/Y5SzhHeIZ5pqabc -From the same part of the world as you no?

[@exitar1]

Jeff I think you misunderstood him he is not saying we should be trying to create vertical forces in the golf swing he is looking for more horizontal.