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Erschienen in: German Journal of Exercise and Sport Research 1/2015

01.03.2015 | Hauptbeiträge

Akzelerometrie zur Erfassung körperlicher Aktivität

Empfehlungen zur Methodik

verfasst von: Dr. Lars Gabrys, Prof. Dr. Christian Thiel, Dr. Alexander Tallner, Dr. Britta Wilms, Dr. Carsten Müller, Dr. Daniela Kahlert, Prof. Dr. Darko Jekauc, Fabienne Frick, Prof. Dr. Holger Schulz, Ole Sprengeler, Dr. Stefan Hey, Susanne Kobel, Prof. Dr. Lutz Vogt

Erschienen in: German Journal of Exercise and Sport Research | Ausgabe 1/2015

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Zusammenfassung

Die Akzelerometrie ist als objektives Messverfahren zur Erfassung körperlicher Aktivität im Feld mit guten psychometrischen Eigenschaften und Anwendbarkeit auch bei großen Stichproben international etabliert. Akzelerometer zeichnen Intensität und Dauer ein- oder mehraxialer Beschleunigungen auf. Umfänge leichter, moderater und intensiver körperlicher Aktivitäten sowie Zeiten der Inaktivität können mit Hilfe von Cut-point-Modellen abgegrenzt, sowie der Energieumsatz auf Basis von Regressionsmodellen geschätzt werden. Allerdings bleibt die Vergleichbarkeit von Ergebnissen aufgrund unterschiedlicher Modelle, Trageprotokolle, Kalibrationsverfahren und Ergebnisdarstellungen schwierig. Die vorliegenden Empfehlungen, Perspektiven und Limitationen der Messmethodik wurden unter Beteiligung aller Autoren erarbeitet und im Konsens verabschiedet.
Aktuell kann kein Gerätemodell pauschal empfohlen werden, da die Wahl des Gerätes von Forschungsfrage, -design und Zielgruppe abhängt. Für ein möglichst objektives Abbild des habituellen Bewegungsverhaltens werden ein Messzeitraum von mindestens 7 Tagen inklusive einem Wochenendtag und eine Tragedauer von mindestens 10 h pro Tag bei Erwachsenen empfohlen. Zur Vermeidung von Verzerrungen aufgrund aggregierter Daten sollten möglichst kurze Epochenlängen gewählt bzw. nicht vorprozessierte Rohwerte gespeichert werden. Für Erwachsene gilt das Cut-point-Modell von Freedson et al. (1998) zur Bestimmung unterschiedlicher Aktivitätskategorien als etabliert. Methodische Limitationen bestehen insbesondere bei der Erfassung von Aktivitäten mit geringer oder sehr hoher Beschleunigung des observierten Körpersegments, wie Fahrradfahren oder Krafttraining, und bei der Berechnung des Energieumsatzes auf Basis linearer Regressionsmodelle.
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Metadaten
Titel
Akzelerometrie zur Erfassung körperlicher Aktivität
Empfehlungen zur Methodik
verfasst von
Dr. Lars Gabrys
Prof. Dr. Christian Thiel
Dr. Alexander Tallner
Dr. Britta Wilms
Dr. Carsten Müller
Dr. Daniela Kahlert
Prof. Dr. Darko Jekauc
Fabienne Frick
Prof. Dr. Holger Schulz
Ole Sprengeler
Dr. Stefan Hey
Susanne Kobel
Prof. Dr. Lutz Vogt
Publikationsdatum
01.03.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
German Journal of Exercise and Sport Research / Ausgabe 1/2015
Print ISSN: 2509-3142
Elektronische ISSN: 2509-3150
DOI
https://doi.org/10.1007/s12662-014-0349-5

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