JATO is pleased to announce cohosting the first Baseball Sports Medicine Conference in 2020, in partnership with the Professional Baseball Athletic Trainers Society (PBATS). We would like this event to help further advance sports medicine related support in baseball field as well as our profession in the world. We thank you in advance for your generous support to this event and look forward to welcoming you in January of 2020.



Baseball Sports Medicine Conference I


Host Organizations:  

Japan Athletic Trainers’ Organization Inc. (JATO)

Professional Baseball Athletic Trainers Society Inc. (PBATS)


Sponsoring Organizations: National Athletic Trainers’ Association (NATA)


Date: January 18 Sat & 19 Sun, 2020

Venue: Tokyo Midtown Hall & Conference Hall B

9 Chome-7-1 Akasaka, Minato City, Tokyo 107-0052



Potential Participants: 350. ATs, MDs, PTs, Acupuncturists, Judo Therapists, Strength & Conditioning coaches and related students who have special interest in baseball sports medicine


Inquiry: JATO Office :info@jato-trainer.org


* All Japanese presentation will be translated into English with simultaneous translation.


Organizing Committee:


Daisuke Uematsu PhD. ATC. (President of JATO / President of Function Inc.)

Ron Porterfield ATC (President of PBATS / Los Angeles Dodgers Player Health Director)


Vice Chair: 

Kenji Sasaki ATC. (Vice President of JATO / President of Conditioning Center HOUSE)

Rick Griffin ATC. (Seattle Mariners, Athletic Trainer, Emeritus, Chairman of PBATS International Committee)


Committee members:

Toshimitsu Ishizuka, MS. ATC. (JATO Board Member, Vice President of Japan Core Conditioning Association)

Atsuko Nakaniida, PhD. ATC. (JATO Board Member, Juntendo University)

Miyuki Hattori, ATC. (Director of JATO, Professional Trainers Team Inc.)

Hideki Matsumoto, MS. ATC. PES. (JATO Board of Member, Ritsumeikan University)

Yoshiki Kobayashi, MS. ATC. (Enjoydream Holdings Co,. Ltd) 

Kyohei Miyazaki, ATC. PT. CSCS. (Osaka Kaisei Hospital / MSEP)

Masayuki Nakatsukasa, ATC. (N.D.S. Co,. Ltd /Gym & Studio NeeDS)

Takashi Onuki, MS, ATC, PRT. (PRI Japan, Educational Coordinator / Osaka University Center of Medical Innovation and Translational Research)

Yosuke Kido, MS. ATC. (DeNA Baystars)

Hiromi Kowata, MS, ATC. (Ritsumeikan University)

Nao Kozawa , MS. ATC. (Major League Baseball China)

Daisuke Monda, RPT. ATC. (Kimura Orthopedic Clinic/ Motor Skills Development Research Centre Foundation)

Amu Yanagisawa, MS. ATC. CES. (Hachioji Sports Clinic Medical Fitness Center)

Yoko Kudo, ATC. (Hitachi High-Technologies Cougars)

Kuniko Yamamoto, PhD. ATC. (President of Total Life Care, Kyoto MBM Labo)

Naoyuki Tsuji, ATC. CSCS. (JATO Bureau Chief / International Sports Medicine Institute)


Hiroyuki Sugaya, MD, is a world-renowned shoulder & elbow surgeon and researcher. Currently serving as chairman, Sports Medicine & Joint Center in Funabashi Orthopaedic Hospital, in Japan. He also serves as a clinical professor, Dept. of Orthopaedic Surgery, Chiba University, visiting Professor of Orthopaedic Surgery, Tokyo Women’s Medical University in Tokyo, and Department of Anatomy, University of Hawaii in Honolulu, USA. As academic society activities, he serves a chair of International Committee both in Japan Shoulder Society and Japanese Orthopaedic Society for Sports Medicine. Also, he is a corresponding member of the American Shoulder & Elbow Surgeons. His clinical interests relate to treatment for shoulder and elbow disorders in various ages of patients including Olympic level athletes and professionals. He has been an invited guest lecturer at numerous overseas shoulder courses and meetings and published around 70 English and 300 Japanese articles in these fields. In addition, he has been dedicated education for young surgeons worldwide accepting many visitors and fellows from all over the world.


other Japanese speakers from Japan will be announced shortly.



Ron Porterfield  ATC


President of PBATS

Los Angeles Dodgers Player Health Director


Ron Porterfield, 54, is entering his second year as Director of Player Health with the Los Angeles Dodgers after serving the previous twelve years as the Head Athletic Trainer for the Tampa Bay Rays, and three years as the Assistant Athletic Trainer before that. Prior to his move to the Major Leagues, Porterfield spent 15 years in the Minor Leagues. From 1988 to 1996, he worked his way through the ranks of the Houston Astros organization. During this time, Porterfield served as an athletic trainer for teams in Auburn, N.Y.; Kissimmee, Fl.; Columbus, Ga.; Jackson, Miss.; and Tucson, Ariz. In 1997, Porterfield was hired by the Tampa Bay Rays to serve as their Minor League medical and rehabilitation coordinator until he was promoted to the Major League club. A Santa Fe, N.M., native, Porterfield is a certified member of the NATA. In 2013 was honored to work the Major League All Star Game in New York. In 2009, Porterfield shared honors with Paul Harker and Nick Paparesta as “Major League Athletic Training Staff of the Year. In 2005, Porterfield shared honors with Ken Crenshaw as “Major League Athletic Training Staff of the Year,” in 1992, Porterfield was named the Texas League Athletic Trainer of the Year, and in 1991 and 1992 he served as an athletic trainer for Magallanes in Valencia, Venezuela. Porterfield and his wife Barbara live in Peoria, AZ., with their children, Alec (22) and Abbey (19).





Seattle Mariners, Athletic Trainer, Emeritus

Chairman of PBATS International Committee


Rick “Griff” Griffin, 63 began his career in sports medicine as a teacher/athletic trainer at Winston Churchill High School in Eugene, Ore. in 1977. A native of Brigham City, Utah, Griffin moved to professional baseball in 1978 when he became an athletic trainer for the Eugene Emeralds, a Cincinnati Reds Minor League affiliate. In 1981, Griffin became a full-time athletic trainer for the Seattle-based Sports Medicine Clinic, before accepting the position of head athletic trainer for the Seattle Mariners in 1983. In August of 2017 Griffin worked his 5,500th game for the Mariners. A member of the NATA whose involvement includes JATO/PBATS liaison and incoming Chairman of the NATA Hall of Fame Committee.

He is also a member of the ACSM, and the NWATS, Griffin served as PBATS American League Athletic Trainer Representative from 1989-95, and worked at the MLB All-Star games in 1987, 1995, 2001, and 2010. He toured Japan with the Major League All-Stars in 1996 and has lectured in Japan in 1994, 1995, 1998, 2000-2002, 2014-2018. Griffin provides health care to the Montana Pro Rodeo Circuit Finals and is an avid hunter and fisherman. He lives in Bothell, Washington with his wife Rachel.




Texas Rangers Sr. Director of Medical Operations


Jamie Reed, 58, is entering his 16th season with the Texas Rangers organization. From 1997 to 2002, Reed was head athletic trainer for the Tampa Bay Devil Rays. He also was the assistant athletic trainer for the Baltimore Orioles from 1989 to 1996. While at the Orioles, Reed shared “Major League Baseball Athletic Training Staff of the Year” honors in 1995 with Richie Bancells. Prior to his Major League appointment in 1989, Reed spent seven seasons in the Orioles’ Minor League system with teams in Bluefield (Rookie League), Hagerstown (Class A), Charlotte (Class AA) and Rochester (Class AAA). Reed is a former American League assistant athletic trainer representative on the PBATS Executive Committee. He spoke at MLB’s 1999 Rookie Development Program. 

In December 2003 Reed traveled to Japan to address the Japanese Professional Baseball Athletics Trainers Society (JPBATS). He also served as one of the athletic trainers for the 2006 Japan All-Star trip. He has been selected as American League All-Star athletic trainer for both the 2000 and 2008 teams. In December 2001, he was selected by his peers as the new president of PBATS, and was re-elected to the position in 2003 and again in 2005. He also served on the Board as Immediate Past President until 2013. A native of Annapolis, MD., Reed served as athletic trainer for the U.S. Naval Academy’s football and basketball teams from 1982 to 1984, and again in 1988.Reed co-chairs the Red Romo Scholarship that provides the expenses to pay for an extra athletic trainer for the Naval Academy Sports Program. Reed lives in Grand Prairie, Texas, with his wife Jean. They have three children and seven grandchildren that all live in Texas.





Assistant Athletic Trainer - Rehab


Matt Toth begins his eighth year with the Major League Medical Staff after spending 10 years in the minor leagues. A Cleveland, Ohio native, Toth began his baseball career as a certified athletic trainer with the Mesa Cubs, the rookie ball affiliate of the Chicago Cubs in 2001. Toth also spent time with the Milwaukee Brewers and also worked at Oregon State University as the Baseball/Football Athletic trainer before joining the Seattle Mariners in 2006. 

Since joining the Mariners, Matt has spent six seasons between Inland Empire (2006), High Desert (2007), Wisconsin (2008), and Jackson (2009-2011). Toth was named the 2011 Southern League Athletic Trainer of the Year. Matt is a certified member of the NATA, as well as a certified strength and conditioning specialist and a corrective exercise specialist through NASM. Currently, Matt resides in Issaquah, WA with his wife Annie, son Alex, and daughter Ellie.