RT Article T1 Professional Practices and User Practices: An Explorative Study in Health Care JF Philosophia reformata VO 82 IS 2 SP 167 OP 191 A1 Verkerk, Maarten J. 1953- A1 Holtkamp, Fred C. A1 Wouters, Eveline J.M. A2 van Hoof, Joost LA English PB Brill YR 2017 UL https://www.ixtheo.de/Record/1566787963 AB In Western countries the health care system faces numerous challenges. We explore the potential of the normative practice approach to analyze the present system, to provide new insights in the redesign of the health care network, and to offer new concepts to understand the needs and wishes of patients. We present a case study of assistive devices in orthopaedics. This article shows that the Triple I variant of the practice model is very fruitful to understand the organizational embedding of professional practices, to understand the health care system as chains of professional practices, and to understand the influence of stakeholders. In this study we introduce the idea of user practices to investigate the social environment of patients and to make the needs and wishes of patients explicit. K1 philosophy of technology : problems in health care : ankle foot orthosis : health care chains : user practices : professional practices : Triple I approach : normative practice model DO 10.1163/23528230-08202001