Examinando por Autor "Fisberg, Mauro"

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    Isotemporal substitution of sedentary time with different physical activity intensities and sleep in obesity parameters across eight latin American countries
    (Accelerometry; Isotemporal substitution; Obesity; Physical activity; Sedentary behavior; Sleep, 0025) de Victo, Eduardo Rossato; Sales, Diego; Christofaro, Diego G. D.; Fisberg, Mauro; Kovalskys, Irina f; del Val Martín, Pablo; Ferrari, Gerson
    This study aimed to examine the associations between substituting sedentary time (ST) with physical activity and sleep with obesity parameters in adults from eight Latin American countries. The sample consisted of 2173 adults aged 18–65 years. Physical activity, ST and sleep were objectively measured using accelerometers. The parameters of obesity were defined using body mass index (BMI) and waist circumference (WC). Regression analyses were conducted for isotemporal analysis of the association between substituting 30 min/day of ST with light physical activity (LPA), moderate to vigorous physical activity (MVPA) and sleep in relation to BMI and WC. Substituting light physical activity with higher intensity was also analyzed. Substituting 30 min/day of ST with MVPA was significantly associated with lower odds of a higher BMI (OR: 0.993, 95%CI 0.990–0.998) and WC (OR: 0.998, 95%CI 0.998–0.999). Conversely, substituting ST with LPA did not show a significant impact on obesity parameters. However, the substitution of 30 min/day of LPA with MVPA was also associated with lower odds of a higher BMI (OR: 0.993, 95%CI 0.989–0.997). The results highlight the importance of replacing ST and increasing the intensity of physical activity as an effective strategy for preventing and managing obesity in Latin America. © The Author(s) 2025.
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    Physical activity and daily steps cut offs points for overweight/obesity prevention among eight Latin American countries
    (Nature Research, 2022-12) Ferrero-Hernández, Paloma; Farías-Valenzuela, Claudio; Jofré-Saldía, Emilio; Marques, Adilson; Kovalskys, Irina; Gómez, Georgina; Rigotti, Attilio; Cortés, Lilia Yadira; García, Martha Yépez; Pareja, Rossina G.; Fisberg, Mauro
    This study aims to establish cut-of points for the number of minutes of physical activity intensity and the number of daily steps that identify overweight/obesity in adolescents, adults, and older adults. This study examined data from 2737 participants. Physical activity intensity and the number of daily steps were assessed using GT3X+ ActiGraph model accelerometers. Body mass index, waist to-height ratio, and waist-to-hip ratio were used as indicators of overweight/obesity. The cut-of points for moderate-to-vigorous physical activity for the prevention of overweight/obesity according to body mass index in women ranged from 15.1 to 30.2 min/day; in men, the values were from 15.4 to 33.8 min/day. The lowest cut-of point for daily steps was established in the adolescent group for women and men (7304 and 5162). The highest value in women was 11,412 (51–65 years) and 13,234 in men (18–30 years). Results from measurements diferent from BMI, show average cut-of points for moderate-to-vigorous physical activity and daily steps of 29.1/8348 and 43.5/10,456 according to waist-to-height ratio; and results of 29.3/11,900 and 44.3/11,056 according to the waist-to-hip ratio; in women and men respectively. A more specifc recommendation of physical activity and daily steps adjusted by sex and age range is suggested to prevent overweight/obesity