dr. J. (Janjaap) van der Net

Associate Professor

  • Clinical Health Sciences
  • Child Development and Exercise patient care

dr. J. (Janjaap) van der Net



Research Programs


Dr Van der Net graduated from the Dutch institute for Higher Education at Utrecht with a BSc. in Physical Therapy in 1979. In 1984, Dr Van der Net was among the first students to enter the first comprehensive pediatric physical therapy course (3yrs) in the Netherlands (now MSc. pediatric physical therapy). In 1987 he  graduated as Pediatric Clinical Specialist (PCS) and became a registered Pediatric Clinical Specialist in the Netherlands. In 1983 he did an internship at the Hospital for Sick Children in Toronto, Canada, with a special focus on Musculoskeletal conditions and pediatric burns. In 1993 he started his PhD work on clinimetrics and functional outome in childhood rheumatic conditions, and in 1995 he received his  PhD. on the thesis: Functional Aspects in Childhood Rheumatic Conditions. In 2010, he succeeded Dr Paul Helders, as head of the Center for Child Development, Exercise and physical literacy at the University Children’s Hospital.  As from 2010 he tutors students of the second year MSc. in Clinical Health Sciences with their MSc-thesis towards their graduation since then. In 2014 he was assigned to associate professor in Pediatrics and in Clinical Health Sciences. In 2014 he received his Advanced Teaching Certificate at the Utrecht University. From 2014 -2019 he was director of the Child Health Services at the University Children's Hospital. Currently he still holds the position of head Center for Child Development, Exercise and physical literacy at the University Children’s Hospital. 


Side Activities

  • Currently he holds an international position as Co-Chair for the International Prophylaxis Study Group (the IPSG;; November 2014

    As from 2019 he is member of the scientific committe of the Dutch association of pediatric physiotherapy.


Fellowship and Awards

  • Recipient of:

    Nationale Reuma prijs 1998

Research Output (206)

Combining real-life HJHS data and expert opinion to work towards a more compact version of the HJHS

Kuijlaars Isolde A. R., van der Net Janjaap, Feldman Brian M., Aspdahl Magnus, Bladen Melanie, de Boer Wypke, Cuesta-Barriuso Ruben, Matlary Ruth E. D., Funk Sharon M., Hilliard Pamela, John Judy A., de Kleijn Piet, Manco-Johnson Marily, Petrini Pia, Poonnoose Pradeep, St-Louis Jean, Thomas Sylvia, Timmer Merel A., SaulyteTrakymiene Sonata, van Vlimmeren Leo, Fischer Kathelijn 2020, In: Haemophilia. 26 , p. 85-85

Commentary on "Health-Related Quality of Life in Children With Chronic Illness Compared to Parents:A Systematic Review"

Schuuring Marleen, van der Net Janjaap 1 okt 2019, In: Pediatric physical therapy : the official publication of the Section on Pediatrics of the American Physical Therapy Association. 31 , p. 322-322 1 p.

The Paediatric Haemophilia Activities List (pedHAL) in routine assessment:changes over time, child-parent agreement and informative domains

Kuijlaars Isolde A.R., van der Net Janjaap, Schutgens Roger E.G., Fischer Kathelijn 16 aug 2019, In: Haemophilia. 25 , p. 953-959 7 p.

Sports participation and sports injuries in relation to age and severity in young persons with haemophilia

Versloot O., van der Net J., Fischer K. feb 2019, In: Haemophilia. 25 , p. 148-148

Finding the smallest detectable change (SDC) of the haemophilia activities list (HAL): preliminary results

Kuijlaars Isolde, van der Net Janjaap, Schutgens Roger E, Fischer Kathelijn feb 2019, In: Haemophilia. 25 , p. 109-110

Healthy play, better coping:The importance of play for the development of children in health and disease

Nijhof Sanne L., Vinkers Christiaan H., van Geelen Stefan M., Duijff Sasja N., Achterberg E. J.Marijke, van der Net Janjaap, Veltkamp Remco C., Grootenhuis Martha A., van de Putte Elise M., Hillegers Manon H.J., van der Brug Anneke W., Wierenga Corette J., Benders Manon J.N.L., Engels Rutger C.M.E., van der Ent C. Kors, Vanderschuren Louk J.M.J., Lesscher Heidi M.B. 1 dec 2018, In: Neuroscience and Biobehavioral Reviews. 95 , p. 421-429 9 p.

Dutch juvenile idiopathic arthritis patients, carers and clinicians create a research agenda together following the James Lind Alliance method:A study protocol

Schoemaker Casper G., Armbrust Wineke, Swart Joost F., Vastert Sebastiaan J., Van Loosdregt Jorg, Verwoerd Anouk, Whiting Caroline, Cowan Katherine, Olsder Wendy, Versluis Els, Van Vliet Rens, Fernhout Marlous J., Bookelman Sanne L., Cappon Jeannette, Van Den Berg J. Merlijn, Schatorjé Ellen, Muller Petra C.E.Hissink, Kamphuis Sylvia, De Boer Joke, Lelieveld Otto T.H.M., Van Der Net Janjaap, Jongsma Karin R., Van Rensen Annemiek, Dedding Christine, Wulffraat Nico M. 15 sep 2018, In: Pediatric Rheumatology. 16

Measuring activities and participation in persons with haemophilia:A systematic review of commonly used instruments

Timmer M. A., Gouw S. C., Feldman B. M., Zwagemaker A., de Kleijn P., Pisters M. F., Schutgens R. E.G., Blanchette V., Srivastava A., David J. A., Fischer K., van der Net J. 27 nov 2017, In: Haemophilia. 24 , p. e33-e49

2016 ACR-EULAR adult dermatomyositis and polymyositis and juvenile dermatomyositis response criteria-methodological aspects

Rider Lisa G., Ruperto Nicolino, Pistorio Angela, Erman Brian, Bayat Nastaran, Lachenbruch Peter A., Rockette Howard, Feldman Brian M., Huber Adam M., Hansen Paul, Oddis Chester V., Lundberg Ingrid E, Amato Anthony A, Chinoy Hector, Cooper Robert G., Chung Lorinda, Danko Katalin, Fiorentino David, García-De la Torre Ignacio, Reed Ann M., Wook Song Yeong, Cimaz Rolando, Cuttica Rubén J., Pilkington Clarissa A., Martini Alberto, van der Net Janjaap, Maillard Susan, Miller Frederick W., Vencovsky Jiri, Aggarwal Rohit, 1 nov 2017, In: Rheumatology (Oxford, England). 56 , p. 1884-1893 10 p.

2016 American College of Rheumatology/European League Against Rheumatism Criteria for Minimal, Moderate, and Major Clinical Response in Juvenile Dermatomyositis:An International Myositis Assessment and Clinical Studies Group/Paediatric Rheumatology International Trials Organisation Collaborative Initiative

Rider Lisa G., Aggarwal Rohit, Pistorio Angela, Bayat Nastaran, Erman Brian, Feldman Brian M., Huber Adam M., Cimaz Rolando, Cuttica Rubén J., De Oliveira Sheila Knupp, Lindsley Carol B., Pilkington Clarissa A., Punaro Marilynn, Ravelli Angelo, Reed Ann M., Rouster-Stevens Kelly, van Royen-Kerkhof Annet, Dressler Frank, Magalhaes Claudia Saad, Constantin Tamás, Davidson Joyce E., Magnusson Bo, Russo Ricardo, Villa Luca, Rinaldi Mariangela, Rockette Howard, Lachenbruch Peter A., Miller Frederick W., Vencovsky Jiri, Ruperto Nicolino, Rider Lisa G., Ruperto Nicolino, Miller Frederick W., Aggarwal Rohit, Erman Brian, Bayat Nastaran, Pistorio Angela, Huber Adam M., Feldman Brian M., Hansen Paul, Rockette Howard, Lachenbruch Peter A., Ruperto Nicolino, Rider Lisa G., van Royen-Kerkhof Annet, van der Net Janjaap, van Royen-Kerkhof Annet, van der Net Janjaap, van Royen-Kerkhof Annet, van Royen-Kerkhof Annet, 1 mei 2017, In: Arthritis & Rheumatology. 69 , p. 911-923 13 p.

All Research Output (206)