J.L. Tol PhD

Medical Specialist, Full Professor
Main activities
Education, Patient care, Research
Sports Medicine
Focus of research

Sports Medicine research is incorporated:

Within the Amsterdam UMC through (1)  the Amsterdam Movement Sciences (program Sports & Work) and (2) the Academic Center of Evidence Based Sports Medicine (ACES)

Internationally through the IOC Research  Center for Prevention of Injury and Protection of Athlete Health (at the Amsterdam UMC chaired by Prof. G. Kerkhoffs and Prof. E. Verhagen),

The research of J.L. Tol focusses on muscle & tendon injuries, risk factor identification and prevention of sports injuries and ankle injuries.


Muscle & Tendon Sports Injuries

The focus of research on muscles and tendons on the lower extremity muscles and Achilles tendon injuries covers the entire clinical workflow from injury to return to sports. It includes innovative therapies and new imaging modalities (in collaboration with Prof. M. Maas, Prof. G. Strijkers and Prof. A. Nederveen).

Both acute and chronic injuries are studied for which new imaging techniques (e.g. MRI DTI imaging) and rehabilitation and prevention protocols (e.g. re-injury risk acute hamstring) are developed by studying risk factors and injury mechanism. Within this research line, Tol has a strong back ground in conducting randomised controlled trials in the field of tendinopathy and regenerative medicine, including platelet rich plasma and cell therapy (published in NEJM and JAMA).



Risk factor identification and prevention of sports injuries

In compliance with the IOC Research Centers for Prevention of Injury and Protection of Athlete Health, research projects aim on preventing tennis injuries, identifying risk factors for acute calf and hamstring injuries and developing new preventive strategies for muscle injuries.


Ankle injuries


This research line has a long history within the ACES departments. Tol’s current projects include the value of clinical and imaging parameters on clinical outcome and return to sports in low grade syndesmotic injuries. Our multi-center trial evaluates the efficacy of a regenerative therapy (platelet rich plasma) in post-traumatic ankle osteo-arthritis, which is a common and disabling injury in (retired) elite athletes.


Key publications
  • Reurink Gustaaf, Goudswaard Gert Jan, Moen Maarten H., Weir Adam, Verhaar Jan A. N., Bierma-Zeinstra Sita M. A., Maas Mario, Tol Johannes L. Platelet-Rich Plasma Injections in Acute Muscle Injury New England journal of medicine 2014;370 (26):2546-2547 [PubMed]
  • Wangensteen Arnlaug, Bahr Roald, van Linschoten Robbart, Almusa Emad, Whiteley Rodney, Witvrouw Erik, Tol Johannes L. MRI appearance does not change in the first 7 days after acute hamstring injury-a prospective study British journal of sports medicine 2017;51 (14):1087-1092 [PubMed]
  • Wangensteen Arnlaug, Almusa Emad, Boukarroum Sirine, Farooq Abdulaziz, Hamilton Bruce, Whiteley Rodney, Bahr Roald, Tol Johannes L. MRI does not add value over and above patient history and clinical examination in predicting time to return to sport after acute hamstring injuries: a prospective cohort of 180 male athletes British journal of sports medicine 2015;49 (24):1579-1587 [PubMed]
  • de Vos Robert J., Weir Adam, van Schie Hans T. M., Bierma-Zeinstra Sita M. A., Verhaar Jan A. N., Weinans Harrie, Tol Johannes L. Platelet-rich plasma injection for chronic Achilles tendinopathy: a randomized controlled trial JAMA 2010;303 (2):144-149 [PubMed]
  • van der Plas A., de Jonge S., de Vos R. J., van der Heide H. J. L., Verhaar J. A. N., Weir A., Tol J. L. A 5-year follow-up study of Alfredson's heel-drop exercise programme in chronic midportion Achilles tendinopathy British journal of sports medicine 2012;46 (3):214-218 [PubMed]
All Publications
Curriculum Vitae


2000 - 2004                             Specialisation training sports medicine physician, Amsterdam, The Netherlands

2003                                        PhD, Etiology, diagnosis and arthroscopic treatment of the anterior ankle impingement syndrome, University of Amsterdam, The Netherlands. Promotor: Professor Dr. C.N. van Dijk

1992 - 1999                             Medical degree (MD), University of Amsterdam, The Netherlands

1988 - 1994                             Exercise Physiology (MSc), Human Movement Science, Free University, Amsterdam, The Netherlands

1980 - 1988                             Pre-university education, GSGD, Doetinchem, The Netherlands




2011 - present                          Coordinator of Clinical Research, Aspetar, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.

                                                 Visiting professional since 2014


2004                                        Traineeship/visit, Methodist Hospital (Dr. K.D. Shelbourne), Department of Orthopaedics, Indianapolis, USA

1999                                        Clinical traineeship, Clinic Gut (Professor R.K. Marti), Orthopaedics, St. Moritz, Switzerland

1993                                        Clinical traineeship, University Hospital, Department of Surgery, Kuala Lumpur, Malaysia


1992                                        Erasmus Exchange Program, Free University, Experimental Anatomy, Brussels, Belgium

1992                                        Erasmus Exchange Program, University of Liverpool, Exercise Physiology, Liverpool, England




2016 - present                         Sports Medicine Physician, Academic Medical Centre (Since June 2018 Amsterdam University Medical Center), Amsterdam

                                                Amsterdam Centre for Evidence Based Sports Medicine, Amsterdam

2014 - 2015                             Sports Medicine Physician, The Sports Physician Group, OLVG, Amsterdam

2011 - present                         Sports Medicine Physician / Coordinator of Clinical Research, Aspetar,

                                                Qatar Orthopaedic and Sports  Medicine Hospital, Doha, Qatar (Visiting professional since 2014)

2011 - present                         Senior Associate Editor, The British Journal of Sports Medicine, IF 6.6

2007 - 2011                             Editor, The Dutch and Flemish Journal of Sports Medicine

2004 - 2011                             Sports Medicine Physician, Medical Centre The Hague, The Netherlands

2000 - 2003                             Trainee Sports Medicine, St Lucas Andreas Hospital, Amsterdam

1999 - 2000                             Resident, Orthopaedics, Academic Medical Centre Amsterdam. Head: Prof. Dr. R.K. Marti

1997 - 1998                             Scientific researcher, Orthopaedics, Academic Medical Centre Amsterdam. 

                                                Project: Clinical guidelines AMC project “Diagnostics of chronic ankle complaints" 


PhD SUPERVISION (ongoing see current PhDs at U.V.A.)


The Netherlands, co-promotor

2010                                        De Vos, RJ

                                                     Imaging and treatment of chronic midportion Achilles tendinopathy

Erasmus University Rotterdam, The Netherlands

ISBN 978-90-8559-053-8  

2011                                        Weir, A

Diagnostics and treatment of adductor-related groin pain in athletes - new insights

University of Utrecht, Utrecht, The Netherlands

ISBN 978-90-8559-053-8  

2012                                        Moen, MH

Aetiology, imaging and treatment of medial tibial stress syndrome

University of Utrecht, Utrecht, The Netherlands

ISBN 978 90 5472 192 5

2015                                        De Jonge, S

Midportion Achilles tendinopathy: incidence, imaging and treatment

Erasmus University Rotterdam, The Netherlands

ISBN 978 94 5472 192 5

2016                                        Reurink, G

Managing acute hamstring injuries in athletes

Erasmus University Rotterdam, The Netherlands

ISBN 978 94 6169 803 2


International, co-supervisor  


2014                                        Eirale, C


Epidemiology of Football Injuries in Qatar

Faculty of Health and Medical Science

                                                                University of Copenhagen, Copenhagen, Denmark  

2017                                        Serner, A

                                               Acute groin injuries; etiology and diagnosis

                                                    Faculty of Health and Medical Science

                                                        University of Copenhagen, Copenhagen, Denmark

On-going, International

2018                                        Wangensteen, A

                                                Diagnosis and prognosis of acute hamstring injuries

                                                     Norwegian School of Sports Science, Oslo, Norway




 2017                                        Platelet Rich Plasma for ankle OA (Prima) study.

                                             Funding: Reumafonds 260.000 Euro (Principal Investigator)

2017                                        Game changing innovative sports research: The Basketball and Muscle Injury (BAMI) study

                                                Funding: NWO-TTW 300.000 USD (Principal Investigator)

2017                                        Development innovative MRI technology to assess trauma in muscles.(G. Strijkers).                                  

                                                Funding: NWO-TTW 750.000 USD (Co-applicant)

2017                                        Post doc VUmc position muscle research Dr. Reurink

                                                Funding: /AMC-Amsterdam Movement Sciences 60.000 Euro (co-applicant)

2017                                        Data management system sports injuries (Professor Verhagen VUmc)

                                                Funding: VUmc/AMC-Amsterdam Movement Sciences 50.000 Euro (co-applicant)

2016                                        Implementatieinnovatieve MRI-techniek voor prognose, herstelmonitoring hamstringblessures.               

                                            Funding: ZonMW Sportinnovatie 200.000 Euro (Project Leader (penvoerder, co-appl) - Professor Maas

2016                                        Blessurepreventie in het tennis: ontwikkeling en evaluatie van KNLTB TennisReady 

                                                Funding: ZonMW Blessurepreventie 200.000 Euro (PI (hoofdaanvrager) - Veilgheid-NL (applicant)

2015                                        Acute hamstring injuries

                                                Funding: Marti Keuning Eckhardt stichting 64.000 Euro (Principal Investigator, co-applicant)

2015                                        Diffuse tensor imaging following acute hamstring injuries.

                                                Funding: NOC NSF 10.000 Euro (Principal Investigator)

2011                                        Autologous Tenocyte Implantation in patients with Chronic Achilles Tendinopathy.


                                                Funding:  Orthocell Pty Ltd 115.446 Euro (Principal Investigator)


2010                                        ACP Injection for Hamstring Injuries. Dutch Hamstring Injection thererapy study


                                                Funding:  Arthrex GmbH 172,673.20 Euro (Principal Investigator)

 2010                                       The Dutch Hamstring Injection Therapy study Royal

                                                Funding: Netherlands Football Association 50.000 Euro (Principal Investigator)

2009                                        PRICT study - Platelet Rich plasma Injection in Chronic Tendinopathy.

                                                Funding:  Biomet Biologics Inc. 75.000 Euro (Principal Investigator)




















Research programmes

J.L. Tol PhD (Sports Medicine - Sports Injuries)

G. Reurink PhD

PhD Students
A. Wangensteen PT

Current research funding
  • Stichting ReumaNederland
  • ZonMw