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About uscmatt99

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  1. Ideally a sandal should have a strap system designed to keep the back of the footbed locked to your heel.
  2. This is a great post and deserves more attention from the golfing community. Our foot and ankle mechanics are the culmination of thousands of years of evolution. We were built to walk with a forefoot or midfoot strike, with the heel tapping the ground on each step. The ankle, knee, and hip joints act in effect as hinged springs when we walk and run. This allows the intrinsic ligaments and muscles of the feet, the flexors of the calves, the extensors of the thigh, and glutes to act as shock absorbers on the strike, and propel us later in the stride. This takes the stress off of the joints. When we heel strike, it's with a straightened leg. Instead of these muscle groups doing the work, all of the force is transmitted straight through the bones and cartilages of these joints, right up to the low back. Less fatiguing for lazy muscles, but we pay the price over time. From a general low back and lower extremity health perspective, barefoot walking is the best if you can tolerate it. Unfortunately the downstream health effects from heel-strike walking and running can make it difficult to convert (heel spurs, plantar fasciitis, osteoarthritis, lumbar disc disease). Some of the best advice was offered in the original post. Walk and run like a little kid. I started barefoot style walking and hiking last year. It was easy in the summer as there are a variety of minimalist shoes and sandals to try out. My favorites are Xero, Luna, and Bedrock sandals as well as Altra running shoes. Running with a forefoot strike is easy as you're leaning forward. Walking that way was awkward at first, and I had to shorten up my stride. Both activities resulted in major calf pain for a couple weeks while I reconditioned these muscles, and I think that too rapid a transition puts you at risk for Achilles tendon injury, so proceed with caution. That brings me to golf this year. I've always felt awkward in golf shoes. The big drop built into most shoes, with the squished toes, always left me feeling unbalanced, and I'd end up with my weight too far towards my toes, even on good swings. For kicks the other day at the range, I hit a bucket with my zero-drop wide toe box running shoes, and my balance and consistency were much improved. I wish I'd seen the threads on the True Linkswear shoes sooner, as I ended up purchasing a set of Barefoot Berbs instead. I'll give them a try this season, but the design is in the same vein. No drop, wide toe box, thin sole for better ground feel. Will update to this thread after I get some rounds in them.
  3. uscmatt99

    Iron consistency

    +1 I focused on these first 3 keys of the 5SK system, and it makes a world of difference. There are some nice drills on youtube that concentrate on steady head and weight forward in particular. Too often there are these complex gimmicks and swing fixes that, for me, do more harm than good. If you concentrate on a steady head, you will remain balanced. If you concentrate on weight forward at impact, you'll make more consistent contact. If you concentrate on a flat left wrist at impact, it will prevent casting/flipping. Many other aspects of the swing will fall in line if you keep these three goals in mind. I have a ways to go, but have been impressed thus far at how effective and easy it is to focus on these three ideas.
  4. Nice post Mr. Desmond. I agree that most people would view the situation much more positively if the S&T; folks adapted their approach based on new data, and were open and receptive to criticism. New data and techniques become available all the time in the scientific community, and open discussion helps us get closer to the truth.
  5. uscmatt99

    F=ma and Bad Science

    Erik, Do you have a source you could refer us to regarding the moment of impact? I'd be interested to read more about it. Well-written post up top by the way, and thanks for responding to my PMs.
  6. uscmatt99

    Traveling With Clubs

    Dave, Thanks for the detailed info. I just spoke with a customer service rep from FedEx about shipping from Kalamazoo, MI to Scottsdale, AZ. I said 35 pounds, insured for $900, and the ground rate each way was quoted as $70, or 3-day was over $200!! For some reason the local office could not give me an estimate over the phone. What am I doing wrong? I'd like to bring my clubs rather than rent, and carrying them will be exceedingly painful with a toddler and newborn in tow. Did you set up the shipping via their website?
  7. Erik, Thanks for the reply. I didn't realise there was another thread where that was all discussed, I would have posted there instead. My apologies. I still need to go through some of the other threads in this subforum. And thanks again for all of your hard work, and putting your data and observations out there for criticism. Open discussion is the quickest way to the truth. And I just want to reiterate, thanks so much for calling it like you see it. I think you'll take this 5 Simple Keys method a long way, maybe with some modifications as more data becomes available and this is applied to a broader spectrum of golfers. It's such a refreshing approach to teaching golf, I may even want to take a lesson again
  8. This is my first post on the forum, but I've been an active reader for over a year. A bit about my history. I'm 35 years old and have been playing since high school. My game peaked during graduate school where I was regularly shooting in the low 80's, not uncommonly in the high 70's. I never calculated a handicap unfortunately. In the intervening years I've been able to play less and less due to work and family considerations, and I noticed deterioration in my swing consistency and ball-striking, where I was previously very consistent with my irons, if not challenged for distance. Looking back, I think I've always had a bit of outside-in and have had difficulty ending up with my "weight forward" at impact. Last year, when I found this forum, I attempted to adopt the SnT system, bought the book, hit the range and all of that. I was self taught, as a certified instructor was not available in my area. The reasoning made sense, but I was never able to transtlate it to consistent ball-striking. In retrospect, I was probably putting too much "weight forward" and overly lowering my head over my left knee, and doing some unnatural compensation just prior to impact. I have to say it felt pretty awkward, and gave rise to the longest string of shanks I've ever experienced in one round! So after a long hiatus, I decided to revisit my swing mechanics and visit the forum once again. I must give Erik and David kudos for collecting some objective data, making a break from SnT dogma in light of new evidence, and developing a seemingly improved system based on that data. Importantly, you've hit the nail on the head regarding the collection of accurate and reproducible data. However, I think it would pay to revisit the terms being used, regarding weight and pressure. I feel it's a shortcut the way that weight and pressure have been parsed out and defined, making it easy to understand for most, but challenging to come to grips with for those of us with more of a background in the sciences. The one thing that is constant is the body's mass, not weight! Weight is a measure of the force exerted by gravity on a particular mass. In your static photos at various swing alignments, the pressure plate measurements are truly reflective of the action of gravity alone, the force at each measureable point on the plate, in some unit of weight/area. So why do these numbers change during the swing, even though the golfer's position is similar? You've already aptly pointed out that very little of the change in pressure measurements can be accounted for by changes in gravitational force right-left distribution. So the only explanation is rotational forces which are changing during the swing. As the golfer rotates around an axis in a plane diagonal to the ground, there are centripetal forces at work. The club head wants to fly out tangential to the arc of the swing plane, and the golfer exerts centripetal force sagitally to keep it in place via the grip and shaft. A diagonal plane can be broken down into vectors that are parallel to and perpendicular to the ground. The differences we see on pressure plate measurements are due to the additional force vectors that are perpendicular to the ground, or parallel with gravity. The horizontal vector is of course not measureable by the plates since they only sense what is vertical to them. In summary, my understanding is that static pressure=gravity and dynamic pressure=gravity + rotational force. Now I'm not nearly smart enough to even attempt to quantify the math such that it fits the data you've acquired. But I think that if you're attempting to take a more scientific, data driven approach to the swing mechanics, you need to use terminology appropriately. It's not just semantics, it's a demonstation of clear understanding of the subject matter, and using terms correctly gives you more broad credibility. All that said, I watched a bunch of your videos online and hit the range yesterday. I used your soda (pop) bottle drill, the 2-ball drill, and pretended I had a squishy ball under my left foot. I even tried keeping my right toes up a bit on the backswing. A lot of things clicked! My contact was not only solid, but consistent on the club face until I fatigued. Ball-flight was right down my intended target line on the way up at least. I was in a pressurized golf-dome only 70 yards deep, so I could only see the first half/third of the ball flight. I'm heading to Scottsdale in a week and hope to get at least one round in as well as some time on a warm, grass range.

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