Jump to content
Check out the Spin Axis Podcast! ×
IGNORED

Now Available at Golf Evolution - Smart2Move 3D Dual Force Plates


Recommended Posts

  • Administrator
Posted

https://www.smart2move.com/devices/3d-dual-force-plates

I now have a set of the Smart2Move 3D Dual Force Plates. These measure forces and torques in all three dimensions, and are portable (somewhat — each plate weighs about 12 pounds) and run wirelessly to an iPad. I've already used them for a session or two, and often I would just AirPlay my screen to the TV in my hitting station. It worked really well in early testing, and I'm excited to continue to work with Smart2Move and these plates.

@david_wedzik were among the first people in the world to own a SwingCatalyst. We have a BodiTrak as well. I'm on record as saying a few things regarding these things:

  1. You can "see" what golfers are doing with your eyes, even if it's not really measured.
  2. They were kind of a pain to set up and use.
  3. Students are bad at understanding forces and torques.
  4. Everyone has semi-decent nGRF; what you can gain from using them is somewhat limited, and instructors make too much out of GRF these days.
  5. ROI?

In order…

1. You can see what golfers are doing with your eyes, even if it's not truly measured. They say "force precedes motion" and that's true. And I can see what golfers are doing - where they're applying forces, torques, etc. I don't know exactly how much, but my estimates would be pretty close. I don't necessarily need force plates to help golfers, or to see what they're doing, but… they do. Like I've found with GEARS, and my GCQuadMAX… golfers are more willing to make changes when they do something and I say "no, you didn't do it" when as I say that, I'm pointing to proof that they didn't do it. It carries more weight than just me saying "you didn't do it" based on what I saw. 😄 

2. They were kind of a pain to set up and use. They were; that's still true. These S2M plates are not. They connect to an iPad, not an entire PC with a dedicated, wired camera that has a hard time getting a good frame rate. The iPad gives 240 FPS video.

3. Students are bad at understanding forces and torques. They still are. You tell someone to add pressure to their left foot, and they'll push with their right foot to shift their weight left… thus adding force to their right foot. But, that's where I come in — I can explain what we're trying to do, and narrow their focus to one graph or one number.

4. Everyone has semi-decent GRF; what you can gain from using them is somewhat limited, and instructors make too much out of GRF these days. To be honest, I still think this is mostly true, but… I'm seeing enough people these days who shift their weight into their trail side toes instead of back toward the heel a bit, or who are super late getting forward, or who don't do some other things pretty easily seen on a graph, that I think I can narrow their focus to just the one thing, explain that thing, and make good progress. Plus, for better players, sometimes this timing — or the amount that they do it — can lead to a noticeable change, even if it takes them from a +1 to a +1.4, or a 110 MPH driver swing to 114.

5. No, at $14k, there would be no good ROI argument to be made. 😛 Erie is a "thrifty" town, after all.

s2m_plates.png

I'm excited to have these again. Like I said, the old systems were a pain to use, and these are much easier, and need only an iPad. I'll be using them in "regular" lessons as well as in GEARS lessons.

Any questions?

  • Like 2
  • Thumbs Up 2

Erik J. Barzeski —  I knock a ball. It goes in a gopher hole. 🏌🏼‍♂️
Director of Instruction Golf Evolution • Owner, The Sand Trap .com • AuthorLowest Score Wins
Golf Digest "Best Young Teachers in America" 2016-17 & "Best in State" 2017-20 • WNY Section PGA Teacher of the Year 2019 :edel: :true_linkswear:

Check Out: New Topics | TST Blog | Golf Terms | Instructional Content | Analyzr | LSW | Instructional Droplets

Awards, Achievements, and Accolades

Posted

Good points all. My coach has something similar to these, but not these ones specifically. He was telling me they are bespoke made for him by a scientist he works with. He showed me my pressure info and compared it with Padraig Harrington's. Mine looks pretty similar to his in directions and timing and so on, but my max GRF is something like 130% of my bodyweight, while his is something like 180% of his bodyweight. So while I'm doing it sort of right, I'm not doing it enough. That was pretty eye opening for me and helped me understand what I need to do. They don't get used all the time by any stretch, but if there's something that he wants me to work on and it'll show up on the force plates, then we break them out. I think that basically mirrors your point 4 exactly.

Regarding point 3, yes I think they are. You can say "you want that arrow to be pointing up, back and right", but until I can stand on the plate and move around until I get the line where I need it to be, I don't really know what that means or how to get it there. Sometimes you get yourself in a spot where it's simply impossible to get the line to move there without falling over, but it's very useful to understand why that happens and what you need to do to fix it. 

Awards, Achievements, and Accolades

  • Administrator
Posted

They look great! 😄

s2m_plates_in_case.jpg

s2m_plates.png

  • Thumbs Up 4

Erik J. Barzeski —  I knock a ball. It goes in a gopher hole. 🏌🏼‍♂️
Director of Instruction Golf Evolution • Owner, The Sand Trap .com • AuthorLowest Score Wins
Golf Digest "Best Young Teachers in America" 2016-17 & "Best in State" 2017-20 • WNY Section PGA Teacher of the Year 2019 :edel: :true_linkswear:

Check Out: New Topics | TST Blog | Golf Terms | Instructional Content | Analyzr | LSW | Instructional Droplets

Awards, Achievements, and Accolades

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Want to join this community?

    We'd love to have you!

    Sign Up
  • TST Partners

    PlayBetter
    Golfer's Journal
    ShotScope
    The Stack System
    FitForGolf
    FlightScope Mevo
    Direct: Mevo, Mevo+, and Pro Package.

    Coupon Codes (save 10-20%): "IACAS" for Mevo/Stack/FitForGolf, "IACASPLUS" for Mevo+/Pro Package, and "THESANDTRAP" for ShotScope. 15% off TourStriker (no code).
  • Posts

    • Nah, man. People have been testing clubs like this for decades at this point. Even 35 years. @M2R, are you AskGolfNut? If you're not, you seem to have fully bought into the cult or something. So many links to so many videos… Here's an issue, too: - A drop of 0.06 is a drop with a 90 MPH 7I having a ball speed of 117 and dropping it to 111.6, which is going to be nearly 15 yards, which is far more than what a "3% distance loss" indicates (and is even more than a 4.6% distance loss). - You're okay using a percentage with small numbers and saying "they're close" and "1.3 to 1.24 is only 4.6%," but then you excuse the massive 53% difference that going from 3% to 4.6% represents. That's a hell of an error! - That guy in the Elite video is swinging his 7I at 70 MPH. C'mon. My 5' tall daughter swings hers faster than that.
    • Yea but that is sort of my quandary, I sometimes see posts where people causally say this club is more forgiving, a little more forgiving, less forgiving, ad nauseum. But what the heck are they really quantifying? The proclamation of something as fact is not authoritative, even less so as I don't know what the basis for that statement is. For my entire golfing experience, I thought of forgiveness as how much distance front to back is lost hitting the face in non-optimal locations. Anything right or left is on me and delivery issues. But I also have to clarify that my experience is only with irons, I never got to the point of having any confidence or consistency with anything longer. I feel that is rather the point, as much as possible, to quantify the losses by trying to eliminate all the variables except the one you want to investigate. Or, I feel like we agree. Compared to the variables introduced by a golfer's delivery and the variables introduced by lie conditions, the losses from missing the optimal strike location might be so small as to almost be noise over a larger area than a pea.  In which case it seems that your objection is that the 0-3% area is being depicted as too large. Which I will address below. For statements that is absurd and true 100% sweet spot is tiny for all clubs. You will need to provide some objective data to back that up and also define what true 100% sweet spot is. If you mean the area where there are 0 losses, then yes. While true, I do not feel like a not practical or useful definition for what I would like to know. For strikes on irons away from the optimal location "in measurable and quantifiable results how many yards, or feet, does that translate into?"   In my opinion it ok to be dubious but I feel like we need people attempting this sort of data driven investigation. Even if they are wrong in some things at least they are moving the discussion forward. And he has been changing the maps and the way data is interpreted along the way. So, he admits to some of the ideas he started with as being wrong. It is not like we all have not been in that situation 😄 And in any case to proceed forward I feel will require supporting or refuting data. To which as I stated above, I do not have any experience in drivers so I cannot comment on that. But I would like to comment on irons as far as these heat maps. In a video by Elite Performance Golf Studios - The TRUTH About Forgiveness! Game Improvement vs Blade vs Players Distance SLOW SWING SPEED! and going back to ~12:50 will show the reference data for the Pro 241. I can use that to check AskGolfNut's heat map for the Pro 241: a 16mm heel, 5mm low produced a loss of efficiency from 1.3 down to 1.24 or ~4.6%. Looking at AskGolfNut's heatmap it predicts a loss of 3%. Is that good or bad? I do not know but given the possible variations I am going to say it is ok. That location is very close to where the head map goes to 4%, these are very small numbers, and rounding could be playing some part. But for sure I am going to say it is not absurd. Looking at one data point is absurd, but I am not going to spend time on more because IME people who are interested will do their own research and those not interested cannot be persuaded by any amount of data. However, the overall conclusion that I got from that video was that between the three clubs there is a difference in distance forgiveness, but it is not very much. Without some robot testing or something similar the human element in the testing makes it difficult to say is it 1 yard, or 2, or 3?  
    • Wordle 1,668 3/6 🟨🟨🟩⬜⬜ ⬜🟨⬜⬜🟨 🟩🟩🟩🟩🟩
    • Wordle 1,668 3/6 🟨🟩🟨🟨⬜ 🟩🟩🟩🟩⬜ 🟩🟩🟩🟩🟩 Should have got it in two, but I have music on my brain.
    • Wordle 1,668 2/6* 🟨🟨🟩⬛⬛ 🟩🟩🟩🟩🟩
×
×
  • Create New...

Important Information

Welcome to TST! Signing up is free, and you'll see fewer ads and can talk with fellow golf enthusiasts! By using TST, you agree to our Terms of Use, our Privacy Policy, and our Guidelines.