dr. L.M. (Janjaap) van der Straver

dr. L.M. (Janjaap) van der Straver

Associate Professor
dr. L.M. (Janjaap) van der Straver
  • Activity&Health sectie exercise

Research Programs

Child Health



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 (221)

Motor Developmental Delay After Cardiac Surgery in Children With a Critical Congenital Heart Defect:A Systematic Literature Review and Meta-analysis

Sprong Maaike C A, Broeders Willem, van der Net Janjaap, Breur Johannes M P J, de Vries Linda S, Slieker Martijn G, van Brussel Marco 1 Oct 2021, In: Pediatric physical therapy : the official publication of the Section on Pediatrics of the American Physical Therapy Association. 33 , p. 186-197 12 p.

Reducing fatigue in pediatric rheumatic conditions:a systematic review

Kant-Smits K., Van Brussel M., Nijhof S., Van der Net J. 8 Jul 2021, In: Pediatric Rheumatology. 19 , p. 1-9

Similar sports participation as the general population in Dutch persons with haemophilia; results from a nationwide study

Versloot Olav, van Balen Erna C, Hassan Shermarke, Schols Saskia E M, Leebeek Frank W G, Eikenboom Jeroen, Coppens Michiel, van Vulpen Lize F D, Smit Cees, Driessens Mariëtte H E, van der Net Janjaap, Gouw Samantha C, Fischer Kathelijn, 19 Jun 2021, In: Haemophilia. 27 , p. 876-885 10 p.

Juveniele Idiopathische Artritis (JIA)

van der Net Janjaap, Armbrust Wineke, van Hoorn Jessica 1 Jun 2021, p. 537-547 10 p.

Parents' experiences of VOICE:A novel support programme in the NICU

van den Hoogen Agnes, Eijsermans Rian, Ockhuijsen Henriette D.L., Jenken Floor, Oude Maatman Sabine M., Jongmans Marian J., Verhage Lianne, van der Net Janjaap, Latour Jos M. May 2021, In: Nursing in critical care. 26 , p. 201-208 8 p.

Shortening the Haemophilia Activities List (HAL) from 42 items to 18 items

Kuijlaars Isolde A.R., van der Net Janjaap, Buckner Tyler W., Kempton Christine L., Schutgens Roger E.G., Fischer Kathelijn 2021, In: Haemophilia. 27 , p. 1062-1070 9 p.

Sports participation is not associated with adherence to prophylaxis in Dutch patients with haemophilia

Hoefnagels Johanna Wilhelmina, Versloot Olav, Schrijvers Liesbeth H, van der Net Janjaap, Leebeek Frank W G, Gouw Samantha C, Fischer Kathelijn, 2021, In: Haemophilia. 27 , p. e402-e405

Shortening the paediatric Haemophilia Activities List (pedHAL) based on pooled data from international studies

Kuijlaars Isolde A.R., van der Net Janjaap, Bouskill Vanessa, Hilliard Pamela, Juodyte Agne, Khair Kate, Trakymiene Sonata Saulyte, Fischer Kathelijn 2021, In: Haemophilia. 27 , p. 305-313 9 p.

Assessing the test-retest reliability and smallest detectable change of the Haemophilia Activities List

Kuijlaars Isolde A R, van Emst Madelon, van der Net Janjaap, Timmer Merel A, Fischer Kathelijn 13 Dec 2020, In: Haemophilia. 27 , p. 108-112 5 p.

Design strategies for promoting young children’s physical activity:A playscapes perspective

Boon Boudewijn, Rozendaal Marco C., van den Heuvel-Eibrink Marry M., van der Net Janjaap, van Grotel Martine, Stappers Pieter Jan Dec 2020, In: International Journal of Design. 14 , p. 1-18 18 p.

All research output

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