Browsing by Author "Cristi-Montero, Carlos"

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    Agreement Between Self-Reported and Device-Based Sedentary Time among Eight Countries: Findings from the ELANS
    (2021) Ferrari, Gerson; Werneck, Andre O.; Silva, Danilo R.; Kovalskys, Irina; Gomez, Georgina; Rigotti, Attilio; Cortes, Lilia Yadira; Garcia, Martha Yepez; Liria, Maria; Herrera-Cuenca, Marianella; Zimberg, Iona Zalcman; Guajardo, Viviana; Pratt, Michael; Cristi-Montero, Carlos; Marques, Adilson; Peralta, Miguel; Bolados, Cristian Cofre; Leme, Ana Carolina B.; Rollo, Scott; Fisberg, Mauro
    The purpose of this study was to analyze the agreement between self-reported and device-based sedentary time among eight countries in Latin America. As part of the Latin American Study of Nutrition and Health (ELANS), data were collected from 2524 participants (18-65 years) across eight countries. Participants reported time spent sedentary in different activities (computer use at home, videogame use, reading, sitting down to chat with friends/relatives or listening to music, speaking on the phone, watching TV, and riding in a car). Overall sitting time was assessed using a single item from the International Physical Activity Questionnaire (IPAQ). Device-based sedentary time was assessed using Actigraph GT3X accelerometers. Self-reported overall sitting time (227.1 min/day) produced the lowest values of the three assessment methods, followed by self-reported sum of different types of sedentary behavior (364.1 min/day) and device-based sedentary time (568.6 min/day). Overall, correlation coefficients and ICC varied from weak to moderate (rho: 0.25-0.39; ICC: 0.21:0.39) between self-reported sum of different types of sedentary behavior, self-reported overall sitting time, and device-based sedentary time. The Bland-Altman plots indicated low to moderate agreement between self-reported overall sitting time and device-based sedentary time by sex. Self-report measures underestimate sedentary behavior and overall sitting time when compared with device-based measures. The weak and moderate level of agreement between methods indicates that caution is required when comparing associations between different self-report and device-based measures of sedentary behavior with health outcomes.
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    Meeting 24-h movement guidelines and markers of adiposity in adults from eight Latin America countries: the ELANS study
    (2022) Ferrari, Gerson; Cristi-Montero, Carlos; Drenowatz, Clemens; Kovalskys, Irina; Gomez, Georgina; Rigotti, Attilio; Cortes, Lilia Yadira; Yepez Garcia, Martha; Liria-Dominguez, Maria Reyna; Herrera-Cuenca, Marianella; Peralta, Miguel; Marques, Adilson; Marconcin, Priscila; da Costa, Roberto Fernandes; Leme, Ana Carolina B.; Farias-Valenzuela, Claudio; Ferrero-Hernandez, Paloma; Fisberg, Mauro
    This study aimed to compare compliance with 24-h movement guidelines across countries and examine the associations with markers of adiposity in adults from eight Latin American countries. The sample consisted of 2338 adults aged 18-65 years. Moderate-to-vigorous physical activity (MVPA) and sedentary behavior (SB) data were objectively measured using accelerometers. Sleep duration was self-reported using a daily log. Body mass index and waist circumference were assessed as markers of adiposity. Meeting the 24-h movement guidelines was defined as >= 150 min/week of MVPA; <= 8 h/day of SB; and between 7 and 9 h/day of sleep. The number of guidelines being met was 0.90 (95% CI 0.86, 0.93) with higher value in men than women. We found differences between countries. Meeting two and three movement guidelines was associated with overweight/obesity (OR: 0.75, 95% CI 0.58, 0.97 and OR: 0.69, 95% CI 0.51, 0.85, respectively) and high waist circumference (OR: 0.74, 95% CI 0.56, 0.97 and OR: 0.77, 95% CI 0.62, 0.96). Meeting MVPA and SB recommendations were related to reduced adiposity markers but only in men. Future research is needed to gain insights into the directionality of the associations between 24-h movement guidelines compliance and markers of adiposity but also the mechanisms underlying explaining differences between men and women.
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    Reporte de notas de actividad física en Chile: Contribuyendo en una iniciativa global por niños y adolescentes más activos
    (2016) Aguilar-Farías, Nicolás; Cortínez O'Ryan, Andrea; Leppe-Zamora, Jaime; Balboa, Teresa; Cobos, Carolina; Lemus, Nicolás; Valladares, Macarena; Sadarangani, Kabir; Von Oetinger, Astrid; Walbaum, Magdalena; Cristi-Montero, Carlos
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    Socio-demographic patterning of objectively measured physical activity and sedentary behaviours in eight Latin American countries: Findings from the ELANS study
    (2020) Ferrari, Gerson Luis de Moraes; Kovalskys, Irina; Fisberg, Mauro; Gomez, Georgina; Rigotti, Attilio; Sanabria, Lilia Yadira Cortes; Garcia, Martha Cecilia Yepez; Torres, Rossina Gabriella Pareja; Herrera-Cuenca, Marianella; Zimberg, Iona Zalcman; Guajardo, Viviana; Pratt, Michael; Cristi-Montero, Carlos; Rodriguez-Rodriguez, Fernando; Scholes, Shaun; Celis-Morales, Carlos A.; Chaput, Jean-Philippe; Sole, Dirceu
    Physical activity (PA) and sedentary behaviours (SB) are two independent risk factors for non-communicable diseases. However, there is a lack of objectively measured information on PA and SB in low- and middle-income countries. The aim of this study was to use objective data to characterise socio-demographic patterns of PA and SB in eight Latin American countries. 2732 participants (aged 15-65 years) from the Latin American Study of Nutrition and Health (ELANS) were included. PA and SB data were collected using accelerometers. Overall and country-specific average levels of time spent in PA and SB were compared by sex, age, socioeconomic and education level. Overall, the mean time spent in SB was 571.6 min/day, ranging from 553.8 min/day in Chile to 596.7 min/day in Peru. Average levels of light, moderate-to-vigorous physical activity (MVPA) and total PA were 311.1 min/day (95% CI: 307.7; 314.5), 34.9 min/day (95% CI: 34.0; 35.9) and 7531.2 MET-min/week (95% CI: 7450.4; 7611.9), respectively. MVPA and total PA were higher in men than women. The prevalence of physical inactivity was 40.6%, ranging from 26.9% (Chile) to 47% (Costa Rica and Venezuela). Women were more physically inactive than men (47.7% versus 33.0%). SB levels were highest among those with higher education; PA graded positively with socioeconomic level. Our findings can inform the planning of health policies and programmes designed to reduce levels of physical inactivity, as well as inform the local and cultural adaptation of these policies and programmes for implementation in Latin America. Highlights Worldwide studies of physical activity (PA) and sedentary behaviours (SB) have historically under-represented Latin American countries due to the lack of surveillance data. Across eight Latin American countries, the ELANS study collected data on PA and SB using an objective method (accelerometers) which we have analysed to quantify and characterise socio-demographic patterns. Over four-in-ten participants were physically inactive (40.6%); with a gender gap (47.7% women; 33.0% men); and striking differences between countries (47% Costa Rica and Venezuela; 26.9% Chile). In all countries, levels of moderate-to-vigorous physical activity (MVPA) were lowest, and levels of SB were highest, among participants in the higher education groups. Our findings on the unequal distribution of PA and SB increases the evidence base and can help to inform future intervention strategies in Latin America.