Literaturnachweis - Detailanzeige
Autor/inn/en | Saint-Maurice, Pedro F.; Welk, Gregory J.; Bartee, R. Todd; Heelan, Kate |
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Titel | Calibration of context-specific survey items to assess youth physical activity behaviour. Gefälligkeitsübersetzung: Kalibrierung von kontextspezifischen Fragebogenitems zur Bewertung von körperlichem Aktivitätsverhalten von Jugendlichen. |
Quelle | In: Journal of sports sciences, 35 (2017) 9, S. 866-872
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Sprache | englisch |
Dokumenttyp | online; gedruckt; Zeitschriftenaufsatz |
ISSN | 0264-0414; 1466-447X |
DOI | 10.1080/02640414.2016.1194526 |
Schlagwörter | Empirische Forschung; Fragebogen; Vergleichsuntersuchung; Jugend; Methodenforschung; Schule; Aktivität; Gesundheit; Sportwissenschaft; Analyse; Methodenvergleich |
Abstract | This study tests calibration models to re-scale context-specific physical activity (PA) items to accelerometer-derived PA. A total of 195 4th-12th grades children wore an Actigraph monitor and completed the Physical Activity Questionnaire (PAQ) one week later. The relative time spent in moderate-to-vigorous PA (MVPA%) obtained from the Actigraph at recess, PE, lunch, after-school, evening and weekend was matched with a respective item score obtained from the PAQ's. Item scores from 145 participants were calibrated against objective MVPA% using multiple linear regression with age, and sex as additional predictors. Predicted minutes of MVPA for school, out-of-school and total week were tested in the remaining sample (n = 50) using equivalence testing. The results showed that PAQ beta-weights ranged from 0.06 (lunch) to 4.94 (PE) MVPA% (P ( 0.05) and models root mean square error ranged from 4.2% (evening) to 20.2% (recess). When applied to an independent sample, differences between PAQ and accelerometer MVPA at school and out-of-school ranged from -15.6 to +3.8 min and the PAQ was within 10-15% of accelerometer measured activity. This study demonstrated that context-specific items can be calibrated to predict minutes of MVPA in groups of youth during in- and out-of-school periods. (Autor). |
Erfasst von | Bundesinstitut für Sportwissenschaft, Bonn |
Update | 2017/3 |