title: Validation of a 24-h physical activity recall in indigenous and non-indigenous Australian adolescents.
abstract: The purpose of this study was to evaluate the concurrent validity of a modified version of the widely used previous day physical activity recall (PDPAR-24) self-report instrument in a diverse sample of Australian adolescents comprising Aboriginal and Torres Strait Islanders (A&TSI) and non-indigenous high school students. A sample of 63 A&TSI and 59 non-indigenous high school students (N=122) from five public secondary schools participated in the study. Participants completed the PDPAR-24 after wearing a sealed electronic pedometer on the previous day. Significant positive correlations were observed between the self-reported physical activity variables (mean MET level, blocks of vigorous activity, and blocks of moderate-to-vigorous physical activity) and 24-h step counts. Validity coefficients (rho) ranged from 0.29 to 0.34 (p<0.05). A significant inverse correlation was observed for self-reported screen time and 24-h step count (rho=-0.19, p<0.05). Correlations for A&TSI students were equal to or greater than those observed for non-indigenous students. The PDPAR-24 instrument is a quick, unobtrusive, and cost-effective assessment tool that would be useful for evaluating physical activity and sedentary behaviour in population-based studies.
authors.affiliation: Department of Kinesiology and Community Health Institute, Natatorium 8, Kansas State University, Manhattan, KS 66506, USA. strost@ksu.edu
authors.forename: Stewart G
authors.initials: SG
authors.lastname: Trost
authors.forename: Alison L
authors.initials: AL
authors.lastname: Marshall
authors.forename: Ruth
authors.initials: R
authors.lastname: Miller
authors.forename: Jane T
authors.initials: JT
authors.lastname: Hurley
authors.forename: Julian A
authors.initials: JA
authors.lastname: Hunt
mesh_terms: D000293:Adolescent; D016552:Ergometry; D015444:Exercise / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall; D018670:Monitoring, Ambulatory; D009043:Motor Activity / Q000502:physiology; D012650:Self Disclosure; D011795:Surveys and Questionnaires; D016138:Walking / Q000502:physiology; D044465:White People