Peter Kriz, MD

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Peter Kriz, MD

Peter Kriz, MD

@NEBaseballDoc

Director, Thrower's Clinic Boston Children's Hospital | Sports Medicine Division

Boston, MA Katılım Haziran 2016
227 Takip Edilen866 Takipçiler
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
Update from our database of 851 pitchers selected in 1st 5 MLB rounds (2011-20), data thru '24 season: ⚾️281 (33%) underwent primary UCL-R ⚾️Median MLB career earnings (adj. for inflation) significantly ⬆️er for middle- & late-career UCL-R vs. early-career UCL-R pitchers... 1/
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Mike Harrington
Mike Harrington@ByMHarrington·
It’s a fricking disgrace that NBC bumps Yankees-RedSox to Peacock because golf had a rain delay and ran over. What are we doing here? Are you committed to Sunday Night Baseball or not? You move the golf. Come on.
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RIIL
RIIL@RIIL_sports·
The Blackstone Valley Schools Co-op hockey team joined NHL Commissioner Gary Bettman to open the 2026 NHL Draft and welcome the next generation of NHL players. youtu.be/5Vrn4eSyZnE?is…
YouTube video
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
I think it's important to note that Paul Skenes didn't visit a travel ball team or cloverleaf facility. He was nostalgic about his Little League days. The sentiments were genuine. We need to take back the sport we all love from the corporations and moneygrabbers.
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
Preach!!
Wendi A. Irlbeck MS, RDN, LD, CISSN@Wendi_Irlbeck

Youth sports is on life support. If you think it’s fine, you’re not paying attention. Kids age 10-12 are playing way too many tournaments and travel ball. Parents treat it like the World Series. They need less travel, more rest, fueling, and actual development. They’re 12 YO. The data backs it up: ❌70% of kids drop out of organized sports by age 13. ❌Professionalization (year-round single-sport focus, heavy travel/tournaments) drives overuse injuries, overtraining, and burnout. ❌Nearly 1 in 10 youth athletes experience burnout; up to 35% deal with overtraining. ❌Early specialization before 12-13 raises injury and burnout risks significantly. Multi-sport kids who rest and play for fun stick around longer and develop better. Let them be kids. Prioritize recovery, fun, and long-term health over trophies. The best athletes often sample multiple sports early and specialize later. Who else sees this?

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Eric Cressey
Eric Cressey@EricCressey·
New podcast: I welcome Dr. Michael Freehill, team doctor for the #Athletics and @StanfordBSB. As a shoulder/elbow expert, avid researcher, retired player, and baseball father, Dr. Freehill has unique insights about where baseball sports medicine is headed. ericcressey.com/csp-elite-base…
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
@rancadore No, you're reading that right. The study referenced in that systematic review was performed by Dr. Glenn Fleisig et al. Study population was 9-14 yos:
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Jason Rancadore
Jason Rancadore@rancadore·
@NEBaseballDoc The eye popping part of the study is that there are 9-11 year olds chucking over 100 innings in a year. Or am I reading that wrong. I read that a top line Starter in College might do that.
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
The concern is early-"career," high-volume workload that predisposes to injury (usually growth plate injuries at that age), which then predisposes to UCL injury:
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Greg@PittsburghFan33

@NEBaseballDoc What’s the difference between a 9u UCL and a 12U UCL?

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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
9U travel ⚾️/showcasing needs 2 be banned. HS & college pitching staffs R currently decimated w UCL inj's, and most current pitchers @ that level DNP on the 9U circuit. A tidal wave of injury is coming. More HS & college coaches need to speak out to save their future programs.
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
@GarethHooton @moreau_daryl @devenmorgan Gareth, I'm not sure the car analogy works. The medial elbow is exposed to traction during throwing, not compression. The UCL is not really a spring. Rubber band or resistance band? yes...
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HOOTS
HOOTS@GarethHooton·
@NEBaseballDoc @moreau_daryl @devenmorgan Thanks! So more like a suspension system? (sorry, sticking to the car analogy) Weak/fatigued shocks (FDS, FCU, FDP) mean way more of that spike transfers straight to the spring (UCL) → higher risk of stretching or tearing over time? and weak springs (UCL) overwork the shocks?
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Daryl Moreau
Daryl Moreau@moreau_daryl·
In 2024, Yanai et.al found that the medial elbow muscles (FDS, FCU, FDP) are the primary valgus stabilizers, NOT the UCL. This means UCL injuries are as much a muscular capacity problem as they are a ligament problem. That’s a massive shift few are addressing.
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
@GarethHooton @moreau_daryl @devenmorgan Yes, certainly, but the UCL & dynamic stabilizers work in tandem to prevent failure. If 1 is weakened, the other is jeopardized. Certain pitches also require ⬆️ activation of FDS & FCU. See attached excellent editorial by Dr. Michael Freehill (Stanford)... link in next comment.
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
Spot-on. With LL Elbow and LL Shoulder (growth plate injuries), recurrence rates are 20-50%, usually within 8-9 months of original injury. Some institutions recommend no pitching/catching for a full calendar year after LLE/LLS.
B. P. Thr⚾wer@5280Bsblr

@NEBaseballDoc I feel like many "overuse" injuries might fall into these categories even if you're otherwise following best practices like pitch count, but it's never discussed. And the growth plates at this age ....

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Antonio García-Hermoso
Antonio García-Hermoso@a_garciahermoso·
💪🌱 La potencia muscular también se cultiva desde la infancia. Prevenir la “powerpenia pediátrica” con juego activo, saltos, carreras y fuerza adaptada ayuda a crear una reserva física que puede proteger la función muscular durante toda la vida 🧒🏃‍♀️🏃‍♂️👟 bjsm.bmj.com/content/early/…
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
2 disturbing trends I'm seeing this spring in New England ⚾️: 1) 8th grade pitchers playing JV 2) 6th graders pitching on their middle school teams (60/90) The UCL pandemic will continue exponentially unless common sense returns to the equation. We're robbing Peter to pay Paul.
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Peter Kriz, MD
Peter Kriz, MD@NEBaseballDoc·
Renewed my @BostonGlobe subscription today, @GlobeKPD . Doing my part to not only keep journalism alive, but to keep that 2010 (?) Prius on the road 👊🏼
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AOSSM Journals
AOSSM Journals@aossmjournals·
⚾ Baseball is back, and so is the latest research! Explore OJSM’s baseball sports medicine collection featuring injury, prevention, treatment, and performance insights all in one place. Explore → ow.ly/WUG150YC0r7 #OJSM #SportsMed #Baseball
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