Journal article
Ten-Year Changes in Accelerometer-Based Physical Activity and Sedentary Time During Midlife
American journal of epidemiology, Vol.187(10), pp.2145-2150
10/01/2018
DOI: 10.1093/aje/kwy117
PMCID: PMC6166210
PMID: 29893772
Abstract
Abstract
We describe 10-year changes in accelerometer-determined physical activity (PA) and sedentary time in a midlife cohort of the Coronary Artery Risk Development in Young Adults Study, within and by race and sex groups. Participants (n = 962) wore the accelerometer with valid wear (≥4 of 7 days, ≥10 hours per day) at baseline (2005–2006; ages 38–50 years) and 10-year follow-up (2015–2016; ages 48–60 years). Data were calibrated to account for accelerometer model differences. Participants (mean age = 45.0 (standard deviation, 3.5) years at baseline) had reduced accelerometer counts overall (mean = −65.5 (standard error (SE), 10.2) counts per minute/day), and within race and sex groups (all P < 0.001). Sedentary time increased overall (mean = 37.9 (SE, 3.7) minutes/day) and within race and sex groups, whereas light-intensity PA (mean = −30.6 (SE, 2.7) minutes/day) and moderate- to vigorous-intensity PA (mean = −7.5 (SE, 0.8) minutes/day) declined overall and within race and sex groups (all P < 0.001). Significant differences in 10-year change estimates were noted by race and sex groups for accelerometer counts, sedentary time, and moderate- to vigorous-intensity PA bouts; black men had the greatest reductions in PA compared with other groups. PA declines during midlife were characterized by reductions in light-intensity PA with increases in sedentary time, which may have important health consequences. Targeted efforts are needed to preserve PA, regardless of intensity level, across midlife.
Details
- Title: Subtitle
- Ten-Year Changes in Accelerometer-Based Physical Activity and Sedentary Time During Midlife
- Creators
- Kelley Pettee Gabriel - Department of Epidemiology, Human Genetics, and Environmental Sciences and Michael & Susan Dell Center for Healthy Living, UTHealth School of Public Health, Austin Campus, Austin, TexasStephen Sidney - Division of Research, Kaiser Permanente Northern California, Oakland, CaliforniaDavid R Jacobs - School of Public Health, Division of Epidemiology & Community Health, University of Minnesota, Minneapolis, MinnesotaKara M Whitaker - Division of Health and Human Physiology, University of Iowa, Iowa City, IowaMercedes R Carnethon - Feinberg School of Medicine, Department of Preventive Medicine, Northwestern University, Chicago, IllinoisCora E Lewis - Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AlabamaPamela J Schreiner - School of Public Health, Division of Epidemiology & Community Health, University of Minnesota, Minneapolis, MinnesotaRaja I Malkani - Department of Epidemiology, Human Genetics, and Environmental Sciences and Michael & Susan Dell Center for Healthy Living, UTHealth School of Public Health, Austin Campus, Austin, TexasJames M Shikany - Department of Medicine, Division of Preventive Medicine, University of Alabama at Birmingham, Birmingham, AlabamaJared P Reis - Division of Cardiovascular Sciences, Program in Prevention and Population Sciences, National Heart, Lung, and Blood Institute, Bethesda, MarylandBarbara Sternfeld - Division of Research, Kaiser Permanente Northern California, Oakland, California
- Resource Type
- Journal article
- Publication Details
- American journal of epidemiology, Vol.187(10), pp.2145-2150
- Publisher
- Oxford University Press
- DOI
- 10.1093/aje/kwy117
- PMID
- 29893772
- PMCID
- PMC6166210
- ISSN
- 0002-9262
- eISSN
- 1476-6256
- Grant note
- R01 HL078972 / CARDIA Fitness Study National Heart, Lung, and Blood Institute (10.13039/100000050) AG0005 / NHLBI R56 HL125423 / CARDIA Activity Study National Institute on Aging (10.13039/100000049) NIA
- Language
- English
- Date published
- 10/01/2018
- Academic Unit
- Epidemiology; Health and Human Physiology
- Record Identifier
- 9984002489802771
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