@article{f511dc7f5bfa458d84f90879c3ff6230,
title = "Accelerometer measured sedentary behavior and physical activity in white and black adults: The REGARDS study",
abstract = "Objectives: Health disparities between subgroups may be partially due to differences in lifestyle behaviors such as sedentariness and physical activity. To obtain a more accurate description of these two lifestyle behaviors, accelerometry was employed among a large sample of white and black adults (ages 49-99 years) living in the United States. Design: Cross-sectional. Methods: 7967 participants from the REasons for Geographic and Racial Differences in Stroke cohort wore an Actical{\texttrademark} accelerometer ≥10 h/day for ≥4 days. Time (mean minutes/day and proportion of total wear time) spent in sedentary behavior, light intensity physical activity, and moderate-vigorous intensity physical activity was compared by sex, age, body mass index, race, and geographic location. Results: Proportion of total wear time spent in sedentary behavior was 75-90%, light intensity physical activity was 10-23%, and moderate-vigorous intensity physical activity was 0-1.7% across subgroups. Mean moderate-vigorous intensity physical activity was 0-16 min/day and associated with 3-12% accumulating ≥150 min/wk using a 10-min bout criterion. Persons ≥85 years, those classified obese, persons living in the southeastern United States, and black women were the most inactive. The proportion achieving at least one 10-min bout of moderate-vigorous intensity physical activity per week was only 36%. The number of 10-min bouts/week was 1.5 ± 0.08 bouts/week. The distribution of weekly moderate-vigorous intensity physical activity was similar across nearly all subgroups with a distinct reverse J-shaped configuration. Conclusions: The vast majority of white and black midlife and older adults in this study engaged sparingly in moderate-vigorous intensity physical activity, accumulated tremendous amounts of sedentary behavior, and seldom engaged in continuous bouts of health-enhancing physical activity.",
keywords = "African American, Aging, Cohort, Exercise, Movement sensor, Patterns",
author = "Hooker, {Steven P.} and Brent Hutto and Wenfei Zhu and Blair, {Steven N.} and Natalie Colabianchi and Vena, {John E.} and David Rhodes and Howard, {Virginia J.}",
note = "Funding Information: This research project is supported by a cooperative agreement U01 NS041588 and investigator-initiated grant R01NS061846 from the National Institute of Neurological Disorders and Stroke, National Institutes of Health, Department of Health and Human Service. Additional funding was provided by an unrestricted research grant from The Coca-Cola Company. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute of Neurological Disorders and Stroke or the National Institutes of Health. Representatives of the funding agency have been involved in the review of the manuscript but not directly involved in the collection, management, analysis or interpretation of the data. The authors thank the other investigators, the staff, and the participants of the REGARDS study for their valuable contributions. A full list of participating REGARDS investigators and institutions can be found at http://www.regardsstudy.org. Funding Information: This research project is supported by a cooperative agreement U01 NS041588 and investigator-initiated grant R01NS061846 from the National Institute of Neurological Disorders and Stroke, National Institutes of Health, Department of Health and Human Service . Additional funding was provided by an unrestricted research grant from The Coca-Cola Company . The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute of Neurological Disorders and Stroke or the National Institutes of Health. Representatives of the funding agency have been involved in the review of the manuscript but not directly involved in the collection, management, analysis or interpretation of the data. The authors thank the other investigators, the staff, and the participants of the REGARDS study for their valuable contributions. A full list of participating REGARDS investigators and institutions can be found at http://www.regardsstudy.org . Publisher Copyright: {\textcopyright} 2015 Sports Medicine Australia.",
year = "2016",
month = apr,
day = "1",
doi = "10.1016/j.jsams.2015.04.006",
language = "English (US)",
volume = "19",
pages = "336--341",
journal = "Journal of Science and Medicine in Sport",
issn = "1440-2440",
publisher = "Elsevier BV",
number = "4",
}