- David Barringer, PT, ATC
- Craig H. Bennett, MD
- J. Gregory Bennett, PT, DSc, MS
- Alex Bodenstab, MD
- John D. Childs, PhD, PT, MBA, OCS, FAAOMPT
- Scott Crook, PT, CSCS
- Sean Curtin, MD
- Irene Davis, PhD, PT, FACSM
- Richard Hallock, MD
- David Ebaugh, PhD, PT, OCS
- Kenneth Flowers, PT, CHT
- Brian R. Hoke, DPT, SCS
- Mary Lloyd Ireland, MD
- David M. Joyner, MD
- Douglas Kasow, MD
- Bryan Kelly, MD
- Timothy E. Kremchek, MD
- Phil McClure, PhD, PT
- Jenny McConnell, MSPT
- Christopher M. Powers, PhD, PT
- Ralph Simpson, PT, OCS, CMPT, ATC
- Deydre S. Teyhen, PT, PhD, OCS
- William Thierfelder, PhD
- Mark Walsh, DPT, MS, CHT, ATC
- Anthony Watson, MD
- Kevin Wilk, DPT

David Barringer, PT, ATC
Mr. Barringer is center manager at Drayer Physical Therapy Institute’s first center in Bel Air, Md. In the past, he has participated in athletic training at the highest level while working with several professional sports teams including the Baltimore Colts, New York Giants and Baltimore Stallions, for which he was involved in athletic injury and return-to-sport decisions. He has served on the staff at Good Samaritan Hospital in Baltimore, Md. working with in-patient spinal cord, stroke and acute orthopedic rehabilitation patients. He has bachelor degrees in physical therapy education from Michigan State University and physical therapy from the University of Maryland, Eastern Shore.
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Craig H. Bennett, MD
Dr. Bennett is the chief of Orthopaedic Sports Medicine at the University of Maryland Medical Center, and the head team physician for the University of Maryland’s Athletic Department. He has also served as the head orthopaedic surgeon for the NFL’s Baltimore Ravens. Dr. Bennett is a graduate of Brown University, the University of California at San Francisco, completed his residency in orthopaedic surgery at Emory University in Atlanta, Georgia, and completed a sports medicine-knee and shoulder fellowship at the University of Pittsburgh. He has been the recipient of various academic honors. His professional
memberships include being a board certified member of the American Academy of Orthopaedic Surgeons, a member of the American Orthopaedic Society for Sports
Medicine, a member of the ACC Team Physicians Association and a Gladden Society member. He serves on the AAOS Knee Subcomittee and is a reviewer for the American Journal of Sports Medicine. The author of numerous publications and book chapters, Dr. Bennett has given a variety of presentations relating to sports medicine throughout North and South America. His areas of research interest center on the advancement of operative sports medicine including complex knee reconstructions for the athlete, and knee arthroplasty procedures for unicompartmental arthritis.
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J. Gregory Bennett, PT, DSc, MS
Mr. Bennett is the founder and director of Excel Rehabilitation, a private physical
therapy practice in northern Virginia. He has more than 28 years of clinical, teaching
and research experience and has provided physical therapy to athletes in the NFL,
NBA, Major League Baseball and U.S. Tennis Association. He has served as the physical
therapy consultant to the Washington Redskins for 17 years. He is an adjunct faculty
member at Marymount University. He received a North American Life clinic research
award for having developed the research basis for decelerator deficiency of the
knee. He has published extensively on orthopedic evaluation and rehabilitation in
a variety of periodic journals and textbooks and is active as an editorial advisor
to numerous publishers. He is the medical mission’s coordinator for orthopedic and
rehabilitation services for the Community Coalition for Haiti, providing free care
in Pignon, Haiti.
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Alex Bodenstab, MD
Dr. Bodenstab is an orthopedic surgeon with First State Orthopaedics in Newark, Delaware. He received his medical degree from Thomas Jefferson Medical College in Philadelphia, Pennsylvania, and his residency was at Cornell University, New York. In addition he is an adjunct associate professor at the University of Delaware, in Newark, Delaware. Dr. Bodenstab is a member of the American Academy of Orthpaedic Suregons and various other professional societies. His interests lie in hip and knee replacement, arthroscopic surgery and sports medicine.
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John D. Childs, PhD, PT, MBA, OCS, FAAOMPT
Dr. Childs is an associate professor and director of research in the U.S. Army-Baylor
University Doctoral Program in Physical Therapy. He is a board-certified orthopaedic
clinical specialist and a fellow in the American Academy of Orthopaedic and Manual
Physical Therapists. Dr. Childs currently serves as an associate editor for both
the Physical Therapy and Journal of Orthopaedic and Sports Physical Therapy journals.
He has published over 60 peer-reviewed manuscripts and has given presentations both
nationally and internationally. He founded “Evidence in Motion,” an education and
business practice consultation company committed to the advancement of physical
therapy practice, research, and education. He is also a partner in Texas Physical
Therapy Specialists, a multi-site private physical therapy practice serving patients
in the greater San Antonio and Austin regions, and Fit for Work, an occupational
health and industrial medicine practice that provides employers with a programmatic
approach to injury prevention, wellness, and treatment.
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Scott Crook, PT, CSCS
Mr. Crook is the center manager for the Drayer Physical Therapy Institute® Lexington,
Ky., Perimeter Center. He graduated from the University of Kentucky in 1987 and
became a certified strength and conditioning specialist in 1992. For the past 20
years, Mr. Crook has been employed in the outpatient physical rehabilitation field,
focusing on orthopedics and sports medicine. He has had extensive experience working
with athletes in all sports and at all levels in rehabilitation and sports performance
training. He has also developed a return to sports functional testing series for
determining a patient’s readiness to return to sporting activities. He is a member
of the National Strength and Conditioning Association and a board member for the
Lexington Ballet.
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Sean Curtin, MD
Board certified in primary care sports medicine, Dr. Curtin is the director of The
Center for Orthopedics and Sports Medicine, a private practice sports medicine clinic
in Bel Air, Md. He is a clinical instructor at the University of Maryland, School
of Medicine and is the associate team physician for John Hopkins University. He
has served as team physician for the University of Maryland Terrapins from 1998
to 2004. Dr. Curtin is also the team physician for the Aberdeen Ironbirds, minor
league affiliate of the Baltimore Orioles, and the John Carroll School in Bel Air,
Md. He is regional medical director for the Drayer Physical Therapy Institute centers
in Maryland. Published in national sports medicine journals, he has also presented
at numerous local and national sports medicine conferences. He is an active member
of the American Medical Society for Sports Medicine and the American College of
Sports Medicine. Dr. Curtin is a graduate of the University of Maryland, School
of Medicine, where he also completed a residency in internal medicine and a fellowship
in primary care sports medicine under the direction of Dr. Andrew Tucker.
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Irene Davis, PhD, PT, FACSM
Drayer Physical Therapy Institute®’s director of research, Dr. Davis, also is
a physical therapy professor at the University of Delaware. She has studied the
relationship between lower extremity structure, mechanics and injury in runners
for the past 20 years. Her current areas of study include mechanical factors in
tibial stress fractures and patellofemoral disorders along with the effect of physical
therapy interventions such as foot orthotic treatment and gait retraining. She serves
as a consultant for patients with lower extremity problems related to overuse. She
has lectured internationally and authored many publications on the topic of lower
extremity mechanics during running.
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David Ebaugh, PhD, PT, OCS
Dr. Ebaugh is a clinical associate professor in the Physical Therapy and Rehabilitation
Sciences Program at Drexel University. He received his baccalaureate degree in physical
therapy from Temple University in 1989, his master’s degree in orthopedic physical
therapy from Hahnemann University in 1996, and his doctorate in rehabilitation sciences
from Drexel University in 2004. His research interest is in the identification and
treatment of neuromuscular and kinematic impairments associated with shoulder pathology.
He has presented scientific papers within his area of research at national APTA
and ASSET meetings and has published his research in Clinical Biomechanics, the
Journal of Electromyography and Kinesiology, and the Journal of Orthopaedic and
Sports Physical Therapy.
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Kenneth Flowers, PT, CHT
Since 1975, Mr. Flowers has been the president of Current Clinical Concepts, Inc. He is also the Emeritus Editor of the Journal of Hand Therapy. Mr. Flowers graduated from Johns Hopkins University and received his physical therapy degree from the University of Pennsylvania. He is the author of numerous publications and a past recipient of the Honored Senior Professor Award at the Philadelphia Hand Symposium, and the Visiting Professorship for the Rocky Mountain Hand Surgery Society and the University of Florida. His past teaching experience includes: UCSF, the University of Pennsylvania, the University of Pittsburgh, and the University of Delaware.
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Richard H. Hallock, MD
Dr. Hallock is chief executive officer of the Orthopedic Institute of Pennsylvania,
in the Harrisburg area. He specializes in joint replacement surgery of the shoulder,
hip and knee. He is involved in research and development of orthopedic implants
involving unicompartmental arthritis of the knee joint. He is a member of the Arthroscopy
Association of North America, American Association of Hip and Knee Surgeons and
the American Academy of Orthopedic Surgery. He earned a biology degree from the
University of Virginia and his medical degree from the University of Maryland School
of Medicine. In 1983, he finished a five-year surgical residency with a specialty
in orthopedics from the Milton S. Hershey Medical Center, Penn State University.
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Brian R. Hoke, DPT, SCS
Mr. Hoke is the director of Atlantic Physical Therapy,
Virginia Beach, Va., which focuses on sports rehabilitation
and clinical applications of lower extremity biomechanics.
He is a board-certified clinical specialist in sports physical
therapy. He is an adjunct faculty member at Old Dominion
University in Norfolk, Va., and Touro College in Bay Shore,
Ny. He received a degree in physical therapy with highest
distinction from Indiana niversity and his post-professional
clinical doctorate from Boston University.
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Mary Lloyd Ireland, MD
Dr. Ireland is an orthopedic surgeon and president of
Kentucky Sports Medicine Clinic in Lexington, Ky. She
received her medical degree from the University of
Tennessee. Her residency was at the University of
California, Irvine and her fellowships in sports medicine
were at Boston Children’s Hospital, Harvard University,
Boston, Ma. and Hughston Orthopaedic Clinic, Columbus,
Ga. She served as head physician at the Olympic Sports
Festival in Minneapolis, Mn. in 1990 and as a medical
staff member at the Olympics in Barcelona, Spain in
1992. Dr. Ireland is a fellow of the American Academy of
Orthopaedic Surgeons and American College of Sports
Medicine. Dr. Ireland has published numerous articles and
chapters. She is co-editor of The Female Athlete
(Saunders 2002) and editor of the AAOS Instructional
Course Lectures – Sports Medicine, published (2005).
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David M. Joyner, MD
Dr. Joyner was the founder, former chair and CEO of
Joyner Sportsmedicine Institute. He is a former clinical
associate professor, Division of Orthopedic Surgery, the
Pennsylvania State University. He was head physician for
the U.S. Team, 1992 Olympic Winter Games, and the
former chair of the U.S.Olympic Committee’s Sports
Medicine Committee. He was a member of the Pan
American Games Medical Commission and a Penn State
All-American in football and wrestling. Dr. Joyner is an
active consultant in the healthcare industry whose clients
include the NFL, Salus Healthcare International, BTE
Technologies, and The Center for Imaging.
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Douglas Kasow, MD
Dr. Kasow is a native of the Atlanta, GA area and graduated from Emory University in 1997. He completed his medical degree from West Virginia School of Osteopathic Medicine with Internship and Residency Programs at Medical College of Georgia from 2001 to 2006. His Fellowship training was at the Center for Spinal Disorders in Denver, Colorado after which he joined Providence Orthopedics Sports Medicine and Spinal Surgery located in Monroe, GA in September 2007. Dr. Doug Kasow is a fellowship trained spine surgeon who specializes in degenerative conditions of the cervical and lumbar spine. He is proud to bring cutting edge artificial disc replacement technology to this region. He is on staff at both Walton Regional Medical Center and Rockdale Medical Center.
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Bryan Kelly, MD
Dr. Kelly is a specialist in sports medicine and
arthroscopic surgery of the shoulder, hip and knee at
Hospital for Special Surgery. In addition, he is an assistant
professor of orthopedic surgery at the Weill Medical
College of Cornell University and is an assistant team
physician for the New York Giants. Dr. Kelly is actively
involved in clinical and basic science research of the
shoulder, hip and knee and is currently investigating nonarthritic
hip pain in athletes, and working on the use of
novel biomaterials for synthetic meniscal replacement in
the knee. He is the author of numerous scientific
publications, chapters and review articles.
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Timothy E. Kremchek, MD
Board-certified as an orthopedic surgeon and fellowship
trained in sports medicine, Dr. Kremchek is in his 12th
year as medical director and chief orthopaedic surgeon
for the Cincinnati Reds. In 2003, Dr. Kremchek and his
partners built the Beacon Orthopaedic Center, located in
Sharonville, a suburb of Cincinnati. It is a world-class
orthopedic and sports medicine center where many
sports professionals come for evaluation and treatment of
their various injuries. Dr. Kremchek’s professional interests
range from advanced arthroscopic repair of the elbow,
shoulder, and knee to total joint replacements and
reconstructions. He has taken an active role in teaching,
and injury prevention in little league pitchers, and has
published articles in local and national orthopedic and
sports medicine journals. Along with his partners, Dr.
Kremchek also serves as team physician for Cincinnati’s
professional soccer teams, local universities, and high
schools.
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Phil McClure, PhD, PT
Dr. McClure is an associate professor at Arcadia University
in the department of physical therapy and practices at
Penn Therapy and Fitness, an outpatient clinic affiliated
with the University of Pennsylvania Medical Center. He is
the recipient of the National Teaching Award from the
orthopedic section of the APTA and the Lindback
Foundation Distinguished Teaching Award from Arcadia
University. He serves on the editorial boards of the Journal of Orthopaedic and Sports Physical Therapy and
the Journal of Hand Therapy. His publications have
appeared in several journals, and his research has been
funded by the Arthritis Foundation and the Foundation for
Physical Therapy.
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Jenny McConnell, MSPT
Ms. McConnell is best known for her contributions to the
conservative management of patellofemoral pain through
her unique patellar taping and training techniques, which
she developed in 1984. She conducts research and is
owner of a private practice in Sydney, Australia. In addition
to her practice, Ms. McConnell presents lectures and
workshops around the world. She is co-author (with Dr.
Ron Grelsamer) of the text, “The Patella.” She is the
originator of the materials used in all McConnell courses.
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Christopher M. Powers, PhD, PT
Dr. Powers is an associate professor in the Department of
Biokinesiology and Physical Therapy and co-director of
the Musculoskeletal Biomechanics Laboratory at the
University of Southern California. His primary research
interests are concerned with the kinematic, kinetic and
muscular actions associated with human movement, the
pathomechanics of orthopedic disabilities, and issues
related to rehabilitation of the musculoskeletal system. Dr.
Powers is an active researcher, and has published over
70 peer-reviewed articles. He frequently lectures both
nationally and internationally on topics related to lower
limb biomechanics and the pathomechanics of
orthopedic disorders.
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Ralph Simpson, PT, OCS, CMPT, ATC
Ralph Simpson has been a physical therapist since 1983. He graduated from the University of Montana with Bachelor’s of Science degrees in Physical Therapy and Health and Physical Education, high honors in each. He was certified as a strength and conditioning specialist in 1987 and holds current certifications in manual therapy and athletic training. He is a board certified specialist in orthopaedics.
An interest in spinal rehabilitation and sports training has been a driving force for Ralph and he published in the American Journal of Physical Therapy early work on pelvic range of motion and eventually led to co-development of the Instant Replay Motor Training Tool and associated training protocols.
Along the pursuit for greater experience and education, Ralph also provided event physical therapy and athletic training coverage to the Pan American Games, the Goodwill Games, the Coors Classic Bike Race, the Olympic Festival, and multiple venues at the USOC training facility in Colorado Springs. Additionally, he traveled with the US Luge team for two World Cup and World Championship seasons throughout Europe.
Between 1983 and 1993, Ralph worked in a Seattle private sports medicine practice treating professional and recreational athletes as well as providing coverage backstage for the Pacific Northwest Ballet.
For 12 seasons, Ralph was the lead physical therapist/athletic trainer on the PGA Tour fitness van, working with virtually all contemporary Tour pros as well as greats such as Tiger, Palmer, Nicklaus, Snead, Trevino, and Player. He has provided coverage at over 350 Tour events including the Masters, PGA Championships, US Open, Ryder Cup and President’s Cup. He has been the invited physical therapist for The Shark Shootout since 1997. From this experience was born the bulk of the Instant Replay protocols and golf fitness training.
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Deydre S. Teyhen, PT, PhD, OCS
Dr. Teyhen is an assistant professor at the U.S. Army-
Baylor University doctoral program in physical therapy and
director of Center for Physical Therapy Research at Fort
Sam Houston, Tx. She is a research consultant to the
Spine Research Center and the Defense Spinal Cord and
Column Injury Center at Walter Reed Army Medical
Center,Washington, Dc., and to the Military Performance
Laboratory at Brooke Army Medical Center in San
Antonio, Tx. Her research has focused on the
development of imaging tools that can enhance the
rehabilitation of spinal and shoulder dysfunctions. She is a
board-certified orthopedic clinical specialist, a certified health
fitness instructor, and a certified health promotion
director. She has lectured extensively, serves as a
manuscript reviewer for rehabilitative and biomechanical
journals, and is editorial review board member for the
Journal of Orthopaedic and Sports Physical Therapy.
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William Thierfelder, PhD
Dr. Thierfelder is president of Belmont Abbey College,
Belmont, Nc. and is also a licensed psychologist. Prior to
this appointment, he served as the CEO of York Barbell
Company, executive director of Player Management
Group, national director of sports science for NovaCare,
Inc., and director of sports performance for Joyner
Sportsmedicine, Inc. Through the years, Dr. Thierfelder has
assisted professional, olympic, college, and high school
level athletes to achieve dramatic improvements in their
athletic performances. He received his masters and
doctoral degrees in Sports Psychology and Human
Movement from Boston University. He is a diplomat of the
American Board of Psychological Specialties and certified
by the American College of Sports Medicine. Dr.
Thierfelder is also a member of the United States Olympic
Committee’s Sport Psychology Registry.
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Mark Walsh, DPT, MS, CHT, ATC
Mr.Walsh is a partner in Hand & Orthopedic Physical
Therapy Associates. He graduated from the University of
Iowa in1978, received an advanced degree in orthopedic
physical therapy from Temple University in 1983, and his
doctor of physical therapy from Drexel University in 2005.
Mr.Walsh currently holds an adjunct position at Drexel
University in the Department of Rehabilitative Sciences,
and provides guest lectures at Arcadia University in the
Physical Therapy Program. He is an active member of the
American Society of Hand Therapists, a selected item
writer for the initial Hand Therapy Certification
Examination, and serves on the editorial board of the
Journal of Hand Therapy.
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Anthony Watson, MD
Dr. Watson is an Orthopaedic Foot and Ankle Specialist
in private practice in Pittsburgh, Pennsylvania. His special
interests include flatfoot deformity due to posterior tibialis
tendon insufficiency, total ankle arthroplasty, and trauma.
He continues to practice general Orthopaedic Surgery, as well,
and remains academically active in research, as an editor for
Foot and Ankle International and Techniques in Foot and Ankle
Surgery, and a reviewer for Journal of Bone and Joint Surgery.
He has given numerous lectures on foot and ankle topics as well
as research study design and biostatistics. Dr. Watson obtained
undergraduate degrees in both Economics and Preprofessional
Studies from the University of Notre and his medical degree from
Northwestern University. He completed his Orthopaedic Surgery
residency at Northwestern University and an Orthopaedic Foot
and Ankle Reconstruction fellowship with the Miller Orthopaedic
Clinic at Carolinas Medical Center.
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Kevin Wilk, DPT
A physical therapist, researcher and educator for more
than 20 years, Mr. Wilk is the co-founder and clinical
director of Champion Sports Medicine, Birmingham, Al.
He is also vice-president of education for Benchmark
Medical, Inc., director of rehabilitative research at the
American Sports Medicine Institute in Birmingham, an
adjunct assistant professor of physical therapy at
Marquette University, and rehabilitation consultant for the
Tampa Bay Devil Rays baseball team. Mr. Wilk has
published more than 110 journal articles and more than
60 book chapters, edited 4 text books, and lectured at
more than 320 professional and scientific meetings. He
serves on the review boards of 6 journals.
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