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  1. yossarian

    Biomechanics References on Tennis Strokes

    Results Simulation showed that internal impingement was frequently observed compared to subacromial impingement when serving. The computed zones of internal impingement were mainly located in the posterosuperior or superior region of the glenoid. These findings were relevant with respect to...
  2. yossarian

    Biomechanics References on Tennis Strokes

    “The etiology of rotator cuff tears in tennis players is multifactorial and usually results from microtrauma and internal impingement in the younger athlete leading to partial tearing and degenerative full-thickness tears in older players.” Same thing in this article. Shocking
  3. yossarian

    Biomechanics References on Tennis Strokes

    I literally just told you it was in the rotator cuff section but here “Rotator cuff injury is frequent in the general population, with a degenerative etiology seen mostly in older patients. However, these injuries are also prevalent in younger populations of overhead throwing athletes...
  4. yossarian

    Biomechanics References on Tennis Strokes

    I will have my doctor of physical therapy degree in a few months Under "rotator cuff injuries" the article specifically mentions posterior internal impingement as the most common cause in overhead athletes and it also mentions scapular dyskinesis. It doesn't mention traditional SAIS. Again...
  5. yossarian

    Biomechanics References on Tennis Strokes

    I would argue that internal impingement is more common seeing as 1) the mechanism of injury is consistent with the throwing motion 2) it is more prevalent in throwing athletes and 3) the article you cited specifically mentions it and does not mention SAIS Clinically differentiating the two...
  6. yossarian

    Biomechanics References on Tennis Strokes

    I've had a back and forth with him for the past few days on this stuff, and pretty much every time I bring up a valid point he just refuses to acknowledge it. So forgive me for feeling vindicated when this article essentially reiterates everything I've been telling him
  7. yossarian

    Biomechanics References on Tennis Strokes

    Good article. And what do you know? Consistent with pretty much everything I've already said. Maybe you should trust me and my doctoral level education?
  8. yossarian

    Beginner Serve Help Day 9 - Serving from the Service Line

    I’m in physical therapy. I’ve been trying to convey to Chas the idea of using “patient friendly language” in his posts but it never computes. The cue you use doesn’t have to be technically correct so long as it accomplishes the desired result
  9. yossarian

    Beginner Serve Help Day 9 - Serving from the Service Line

    You don’t agree that flex means “bend” or you don’t agree that OP would prefer to avoid the biomechanical jargon?
  10. yossarian

    Beginner Serve Help Day 9 - Serving from the Service Line

    Not everyone speaks in bio mechanical terms. His description was technically incorrect but he got his meaning across easily You could learn a lot from that
  11. yossarian

    Beginner Serve Help Day 9 - Serving from the Service Line

    again, what??? This was my first post on that thread? (And my question is still unanswered, I’ll add) http://tt.tennis-warehouse.com/index.php?threads/beginner-serve-help-day-8-getting-the-correct-swing-path.711116/post-15821203
  12. yossarian

    Beginner Serve Help Day 9 - Serving from the Service Line

    @SystemicAnomaly do you know what this means?
  13. yossarian

    Beginner Serve Help Day 8 - Getting the Correct Swing Path

    Again, Chas, I am not going to engage in a lengthy discussion with you partly because I am not interested but also because even if I was, you apparently lack the ability to communicate on a normal human level, at least on this forum. There is no typical back and forth responding without getting...
  14. yossarian

    Beginner Serve Help Day 8 - Getting the Correct Swing Path

    I'm not interested in doing that work so I'm not going to. Feel free to perform an updated literature search on your own time I would assume the common arm angle is not adopted because it prevents injury, but because there is a biomechanical advantage to throwing with the shoulder elevated...
  15. yossarian

    Beginner Serve Help Day 8 - Getting the Correct Swing Path

    I’ve never seen the videos but references from the mid 2000s are really outdated at this point. I told Chas before that cadaveric studies have shown that the subacromial structures are not really impinged upon past 70 degrees so we don’t think reduction of the subacromial space is really...
  16. yossarian

    Beginner Serve Help Day 8 - Getting the Correct Swing Path

    The “classic” model of impingement is really outdated at this point, anyway. What we thought was happening anatomically really isn’t In throwers, internal impingement seems to be much more prevalent
  17. yossarian

    Beginner Serve Help Day 8 - Getting the Correct Swing Path

    you do realize that knowing what to do and actually doing it are two completely different things?
  18. yossarian

    Isn't this a let?

    College players play lets Players would get aced and just call the serve a let so they did away with them altogether
  19. yossarian

    Wrist Acceleration!?

    I sincerely hope Chas responds to this
  20. yossarian

    Beginner Serve Help Day 7 - Weekly Review

    You seem to be missing this point as well: in both of those articles, and in @SystemicAnomaly 's previous post, the waiter position is described as occurring during the racquet drop, prior to maximum external rotation and the forward motion of the swing. If you want a specific "reference" to...
  21. yossarian

    Transfrictional massage / Cyriax for tendonitis

    I don’t know how evidence based it really is but the rationale makes sense and I’ve seen it have positive results The crux of these treatments is really “we don’t know whether it works or not, but it’s not going to harm you so it’s worth a shot”
  22. yossarian

    Beginner Serve Help Day 7 - Weekly Review

    Just how is he supposed to correct his technique without practicing to correct his technique?
  23. yossarian

    Wrist Acceleration!?

    Let me ask you a question: does Simon’s lack of knowledge/accuracy regarding the biomechanics of the serve impact his ability to hit and/or instruct one?
  24. yossarian

    NFL 2021-2022

    If that isn’t enough to make you believe in karmic justice
  25. yossarian

    NFL 2021-2022

    Karmic justice for trying to win on that Doyle flop
  26. yossarian

    NFL 2021-2022

    Urban Meyer is inexplicably and despite his best efforts not the first coach to go this year
  27. yossarian

    NFL 2021-2022

    it’s a tough division but with 7 teams getting in I think they’ll be fine
  28. yossarian

    Wrist Acceleration!?

    If I had an instructor tell me this I’d leave on the spot Again, you seem to be missing the point. The words used to cue players don’t have to be technically true if they are producing the desired effect
  29. yossarian

    Beginner Serve Help Day 5 - Toss, Toss, Toss

    If you practice serving everyday and a) aren’t used to that workload and b) aren’t doing any other form of conditioning you are asking for an overuse injury fair warning
  30. yossarian

    Anyone Experience Neck Pain After Playing?

    What kind of exam did he perform?
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