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Objectives To quantify and compare the sedentary time estimated by the Sedentary Behavior Questionnaire (SBQ) and the sedentary time objectively measured by a multi-sensor monitor (SWA) in pregnant women. Methods One hundred eighty-six participants answered the SBQ and wore the SWA at least 7 valid days. The concordance, correlation, agreement and relative activity levels between both measures of sedentary time were examined. Differences of sedentary time between weekday and weekend and between groups stratified by sociodemographic and clinical characteristic were evaluated by one-way analysis of variance. Results Pregnant women were sedentary the 64% of their waking hours. Television viewing is the most prevalent sedentary behavior. The concordance, correlation, and agreement between SBQ and SWA were weak, yet a significant correlation in weekday and average day sedentary time (r = 0.23 and 0.20, P = 0.001 and 0.008, respectively) was observed. A significant linear trend was found for increasing sedentary time between both methods using a relative activity levels analysis. Conclusions for Practice Pregnant women experience high amount of sedentary time, for approximately half of the day. The SBQ shows a low validity and agreement, but strong ability to rank individuals compared with SWA in pregnant women., Author(s): Miguel Ángel Oviedo-Caro [sup.1] , Javier Bueno-Antequera [sup.1] , Diego Munguía-Izquierdo [sup.1] Author Affiliations: (Aff1) 0000 0001 2200 2355, grid.15449.3d, Section of Physical Education and Sports, Department of Sports [...]

Objectives Physical activity patterns can track from childhood into adulthood; therefore, establishing active behaviors early is imperative. Given the multidimensional nature of a mother's influence on their children, there is a need to utilize more comprehensive measures to assess the relationship between mother and child activity behaviors. Specifically, mothers have been identified as influencing preschoolers' activity behaviors and are often in control of organizing a family's opportunities to be active. The purpose of this study was to explore maternal influence on preschoolers' physical activity and sedentary time. Methods Preschoolers (n = 24) and their mothers (n = 24) wore Actical[TM] accelerometers for 7 consecutive days (e.g., 5 weekday, 2 weekend days), and mothers completed the adapted Environmental Determinants of Physical Activity in Preschool Children-Parent Survey. Direct entry regression analyses were conducted to explore maternal influence (e.g., role modeling through mothers' activity levels, maternal support, and enjoyment of being active) on preschoolers' activity levels. Results Maternal support was found to be a significant predictor of preschoolers' light and moderate-vigorous physical activity, and sedentary time (p < .05); accounting for 37.3-46.7% of the variation. Conclusions for Practice Mothers supportive behaviors influenced preschoolers' physical activity and sedentary time. Future research is needed to investigate facilitators/barriers that mothers with preschoolers encounter with regard to providing support to be active or modeling active behaviors themselves., Author(s): Alana M. Maltby [sup.1] , Leigh M. Vanderloo [sup.2] , Patricia Tucker [sup.3] Author Affiliations: (Aff1) 0000 0004 1936 8884, grid.39381.30, Epidemiology & Biostatistics, Schulich Medicine & Dentistry, University [...]

This study conducted among adults with obesity examined the associations between implicit attitudes toward physical activity and sedentary behavior, and physical activity behavior measured 4 months later. At baseline, 76 participants (M.sub.AGE = 56; M.sub.BMI = 39.1) completed a questionnaire assessing intentions toward physical activity and sedentary behavior and two computerized Single-Category Implicit Association Tests assessing implicit attitudes toward these two behaviors. At follow-up, physical activity was measured with accelerometers. Multiple regression analysis showed that implicit attitudes toward physical activity were positively and significantly associated with physical activity when participants' age, BMI, past physical activity and intentions were controlled for. Implicit attitudes toward sedentary behavior were not associated with physical activity. Adults with obesity who implicitly reported more favorable attitudes toward physical activity at baseline were more likely to present higher physical activity levels at follow-up. Implicit attitudes could be targeted in future research to enhance physical activity., Author(s): Guillaume Chevance [sup.1] [sup.2] , Johan Caudroit [sup.3] , Thomas Henry [sup.2] , Philippe Guerin [sup.2] , Julie Boiché [sup.1] , Nelly Héraud [sup.2] Author Affiliations: (1) Laboratory Epsylon, [...]

Background/Objectives: The purpose of this study was to evaluate the independent and combined associations of moderate-to-vigorous physical activity (MVPA), leisure time sedentary behavior and daily protein consumption on lower extremity muscular strength and lean mass. Subjects/Methods: Data from the 1999-2002 NHANES were utilized (N=1080 adults 50-85 y). Leg lean mass was estimated from dual-energy x-ray absorptiometry scans. Knee extensor strength was assessed objectively using the Kin Com MP dynamometer. MVPA and leisure time sedentary behavior were assessed via questionnaire, with the number of meals per day of [greater-than or slanted equal to]30 g of protein per meal assessed via a 'multiple pass' 24-h dietary interview. Results: Meeting MVPA guidelines ([beta]=16.3, P=0.02) and consuming at least two meals per day of [greater-than or slanted equal to]30 g of protein per meal ([beta]=28.8, P=0.02) were independently associated with greater lower extremity strength, whereas sedentary behavior was not ([beta]=11.6, P=0.23). Finally, there was no evidence of a three-way interaction of these behaviors on lower extremity strength ([beta]=-8.7; P=0.70) or lower extremity lean mass ([beta]=144.5; P=0.75). Conclusions: Although MVPA and frequency of protein consumption of [greater-than or slanted equal to]30 g of protein per meal were independently associated with lower extremity lean mass and strength, the results of the present study do not provide evidence to suggest that there is a three-way interplay between MVPA, sedentary behavior and frequency of protein consumption [greater-than or slanted equal to]30 g of protein per meal on lower extremity lean mass and strength., Author(s): P D Loprinzi [sup.1] , J P Loenneke [sup.2] , D L Hamilton [sup.3] Author Affiliations: (1) Department of Health, Exercise Science, and Recreation Management, Physical Activity Epidemiology Laboratory, [...]