Nicolas Aguilar-Farias1,2, Pía Martino-Fuentealba3,4, Damian Chandia-Poblete3,4,5. 1. Department of Physical Education, Sports and Recreation. Universidad de La Frontera, Av Francisco Salazar 01145, 4780000, Temuco, Chile. nicolas.aguilar@ufrontera.cl. 2. UFRO Activate Research Group, Universidad de La Frontera, Temuco, Chile. nicolas.aguilar@ufrontera.cl. 3. Department of Physical Education, Sports and Recreation. Universidad de La Frontera, Av Francisco Salazar 01145, 4780000, Temuco, Chile. 4. UFRO Activate Research Group, Universidad de La Frontera, Temuco, Chile. 5. School of Public Health and Social Work, Queensland University of Technology, Brisbane, Australia.
Abstract
BACKGROUND: To better understand sedentary behaviour and favour international comparisons, more evidence from different countries are needed. However, there are a few tools available in Spanish to measure sedentary behaviour. This study aimed to culturally adapt, translate and validate the Past-day Adults' Sedentary Time (PAST) questionnaire in Chilean adults compared with the ActivPAL. METHOD: One hundred one workers wore an ActivPAL for 1 week and were asked to respond to the Spanish version of the PAST twice on different visits at a 7-day interval. The PAST assesses sedentary behaviour in several domains, including working time, during the previous day. Reliability was assessed with the intraclass correlation coefficient (ICC). Correlations and Bland-Altman methods were used to determine accuracy properties of the PAST compared with the ActivPAL. RESULTS: Seventy-seven participants provided valid data (51.0% male; age = 39.0 ± 12.39 years). The PAST showed moderate reliability (ICC = 0.63). For the total time in sedentary behavior per day, the PAST showed no correlation (r = 0.21, p = 0.07) and a mean bias of 54.9 min/day (LoA 95%: - 484.3, 594.2 min/day) with the ActivPAL. For the total time in SB at work, the PAST showed moderate reliability (ICC = 0.40), weak correlation (r = 0.37, p < 0.002), and mean bias was 33.8 min/day (LoA 95%: - 285.7, 353.3 min/day). CONCLUSIONS: The PAST performed better when estimating sedentary behaviour during working hours compared with the whole day. In this setting, accuracy properties were comparable with other self-report tools.
BACKGROUND: To better understand sedentary behaviour and favour international comparisons, more evidence from different countries are needed. However, there are a few tools available in Spanish to measure sedentary behaviour. This study aimed to culturally adapt, translate and validate the Past-day Adults' Sedentary Time (PAST) questionnaire in Chilean adults compared with the ActivPAL. METHOD: One hundred one workers wore an ActivPAL for 1 week and were asked to respond to the Spanish version of the PAST twice on different visits at a 7-day interval. The PAST assesses sedentary behaviour in several domains, including working time, during the previous day. Reliability was assessed with the intraclass correlation coefficient (ICC). Correlations and Bland-Altman methods were used to determine accuracy properties of the PAST compared with the ActivPAL. RESULTS: Seventy-seven participants provided valid data (51.0% male; age = 39.0 ± 12.39 years). The PAST showed moderate reliability (ICC = 0.63). For the total time in sedentary behavior per day, the PAST showed no correlation (r = 0.21, p = 0.07) and a mean bias of 54.9 min/day (LoA 95%: - 484.3, 594.2 min/day) with the ActivPAL. For the total time in SB at work, the PAST showed moderate reliability (ICC = 0.40), weak correlation (r = 0.37, p < 0.002), and mean bias was 33.8 min/day (LoA 95%: - 285.7, 353.3 min/day). CONCLUSIONS: The PAST performed better when estimating sedentary behaviour during working hours compared with the whole day. In this setting, accuracy properties were comparable with other self-report tools.
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