About the Authors

Rob C. van Lummel

r.vanlummel@mcroberts.nl

Affiliations McRoberts BV, Raamweg 43, 2596 HN The Hague, The Netherlands, MOVE Research Institute Amsterdam, Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

Stefan Walgaard

Affiliations McRoberts BV, Raamweg 43, 2596 HN The Hague, The Netherlands, The Hague University of Applied Sciences, Movement Technology, The Hague, The Netherlands

Mirjam Pijnappels

Affiliation MOVE Research Institute Amsterdam, Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

Petra J. M. Elders

Affiliation EMGO+, VU University Medical Center, Amsterdam, The Netherlands

Judith Garcia-Aymerich

Affiliations Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain, CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain, Universitat Pompeu Fabra, Departament de Ciències Experimentals i de la Salut, Barcelona, Spain

Jaap H. van Dieën

Affiliation MOVE Research Institute Amsterdam, Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

Peter J. Beek

Affiliation MOVE Research Institute Amsterdam, Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

Competing Interests

Rob van Lummel is a Ph.D. candidate at the Faculty of Human Movement Sciences (VU University Amsterdam) and the owner of McRoberts B.V. This company is the manufacturer of the DynaPort. Stefan Walgaard is employed by McRoberts BV. The authors received funding from a commercial source (Agis/Achmea). This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: RvL. Performed the experiments: RvL SW. Analyzed the data: RvL SW JGA JvD. Contributed reagents/materials/analysis tools: SW JvD. Wrote the paper: RvL JGA PE JvD PB.