title: High Levels of Physical Activity in Anorexia Nervosa: A Systematic Review.
abstract: High level physical activity is a frequent symptom in patients with anorexia nervosa (AN), influencing the development, maintenance, complications, treatment success, relapse rate and severity of the disease. Accelerometry is assumed to be an objective method to assess physical activity (PA) in AN. We aimed to review objectively measured levels of PA in AN and to give an overview for clinical practice and future research. Data were searched in PubMed and PsychINFO until April 2015 following the preferred reporting items for systematic reviews and meta-analyses statement. Twenty studies fulfilled the inclusion criteria. A notable heterogeneity of measurements, outcomes, participants and settings was found. Overall, HLPA is not adressed enough by current evidence. A common valid terminology of HLPA is not available, and accurate criteria of different levels of PA must be defined to create comparability of future studies. Further objective PA assessments are needed to improve treatment outcome and relapse rate.
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany.
authors.forename: Ricarda
authors.initials: R
authors.lastname: Gümmer
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany.
authors.forename: Katrin Elisabeth
authors.initials: KE
authors.lastname: Giel
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany.
authors.forename: Kathrin
authors.initials: K
authors.lastname: Schag
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany.
authors.forename: Gaby
authors.initials: G
authors.lastname: Resmark
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany.
authors.forename: Florian Philipp
authors.initials: FP
authors.lastname: Junne
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany.
authors.forename: Sandra
authors.initials: S
authors.lastname: Becker
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Zipfel
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Teufel
mesh_terms: D061725:Accelerometry; D000856:Anorexia Nervosa / Q000523:psychology / Q000628:therapy*; D015992:Body Mass Index; D015444:Exercise; D005260:Female; D006801:Humans; D009043:Motor Activity; D016896:Treatment Outcome
keywords: Accelerometry; Anorexia nervosa; Physical activity