BACKGROUND: Although there is a growing interest in the epidemiology of sedentary behaviours, it is unknown whether sedentary behaviour questionnaires are broad markers of sedentary time. The aims of this study were to determine the: (i) reliability of the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) screen time-based sedentary behaviour questionnaire; and (ii) its validity, i.e. the ability of the questionnaire to correctly rank adolescents according to the objectively measured sedentary time. METHODS: A total of 183 adolescents (104 females aged 12.5-17.5 years) were involved in the reliability study. Participants completed the HELENA sedentary questionnaire twice (1 week apart). The validity study comprised 2048 (1212 females) adolescents (12.5-17.5 years of age) included in the HELENA cross-sectional study. Questions included television viewing, computer games, console games, Internet for study and non-study reasons and study during week and weekend days. We compared median values of sedentary time, using accelerometers, by tertiles of self-reported sedentary behaviours and their sum (composite sedentary score). RESULTS: Reliability study: κ-values showed a good agreement (>0.7), except for Internet for study reasons (0.46 weekdays, 0.33 weekend). The questionnaire correctly classified boys' sedentary time when analysed by specific behaviours and by a composite sedentary score. In girls, median values of objectively measured sedentary time were not different across tertiles of self-reported sedentary behaviours or the composite sedentary score. CONCLUSION: The HELENA sedentary questionnaire is reliable, yet only correctly classifies objectively measured sedentary time in boys.
BACKGROUND: Although there is a growing interest in the epidemiology of sedentary behaviours, it is unknown whether sedentary behaviour questionnaires are broad markers of sedentary time. The aims of this study were to determine the: (i) reliability of the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) screen time-based sedentary behaviour questionnaire; and (ii) its validity, i.e. the ability of the questionnaire to correctly rank adolescents according to the objectively measured sedentary time. METHODS: A total of 183 adolescents (104 females aged 12.5-17.5 years) were involved in the reliability study. Participants completed the HELENA sedentary questionnaire twice (1 week apart). The validity study comprised 2048 (1212 females) adolescents (12.5-17.5 years of age) included in the HELENA cross-sectional study. Questions included television viewing, computer games, console games, Internet for study and non-study reasons and study during week and weekend days. We compared median values of sedentary time, using accelerometers, by tertiles of self-reported sedentary behaviours and their sum (composite sedentary score). RESULTS: Reliability study: κ-values showed a good agreement (>0.7), except for Internet for study reasons (0.46 weekdays, 0.33 weekend). The questionnaire correctly classified boys' sedentary time when analysed by specific behaviours and by a composite sedentary score. In girls, median values of objectively measured sedentary time were not different across tertiles of self-reported sedentary behaviours or the composite sedentary score. CONCLUSION: The HELENA sedentary questionnaire is reliable, yet only correctly classifies objectively measured sedentary time in boys.
Authors: Tatiana Sadalla Collese; Augusto César Ferreira De Moraes; Juan Miguel Fernández-Alvira; Nathalie Michels; Stefaan De Henauw; Yannis Manios; Odysseas Androutsos; Anthony Kafatos; Kurt Widhalm; Myriam Galfo; Laurent Beghin; Michael Sjöström; Raquel Pedrero-Chamizo; Heráclito Barbosa Carvalho; Luis A Moreno Journal: Int J Public Health Date: 2018-12-04 Impact factor: 3.380
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Authors: S Bel-Serrat; T Mouratidou; I Huybrechts; M Cuenca-García; Y Manios; S Gómez-Martínez; D Molnár; A Kafatos; F Gottrand; K Widhalm; M Sjöström; A Wästlund; P Stehle; E Azzini; K Vyncke; M González-Gross; L A Moreno Journal: Eur J Clin Nutr Date: 2014-02-05 Impact factor: 4.016
Authors: C Homs; P Berruezo; G Según; L Estrada; J de Bont; J Riera-Romaní; E Carrillo-Álvarez; H Schröder; R Milà; S F Gómez Journal: BMC Pediatr Date: 2021-05-21 Impact factor: 2.125
Authors: Luis Gracia-Marco; Juan P Rey-López; Alba M Santaliestra-Pasías; David Jiménez-Pavón; Ligia E Díaz; Luis A Moreno; German Vicente-Rodríguez Journal: BMC Public Health Date: 2012-11-13 Impact factor: 3.295
Authors: Jelle Van Cauwenberg; Veerle Van Holle; Ilse De Bourdeaudhuij; Neville Owen; Benedicte Deforche Journal: BMC Public Health Date: 2014-07-21 Impact factor: 3.295