Sedentary Time and Physical Activity Across Occupational Classifications

Research output: Contribution to journalArticle


External Institution(s)

  • University of Pittsburgh
  • Northwestern University
  • University of Iowa
  • Kaiser Permanente


Original languageEnglish (US)
Pages (from-to)247-256
Number of pages10
JournalAmerican Journal of Health Promotion
Issue number3
StatusPublished - Mar 1 2020


Purpose: To examine differences in activity patterns across employment and occupational classifications. Design: Cross-sectional. Setting: A 2005-2006 Coronary Artery Risk Development in Young Adults (CARDIA) study. Sample: Participants with valid accelerometry data (n = 2068). Measures: Uniaxial accelerometry data (ActiGraph 7164), accumulated during waking hours, were summarized as mean activity counts (counts/min) and time spent (min/d) in long-bout sedentary (≥30 minutes, SED≥30), short-bout sedentary (<30 minutes, SED<30), light physical activity (LPA), short-bout moderate-to-vigorous physical activity (<10 minutes, MVPA<10), and long-bout MVPA (≥10 minutes, MVPA≥10) using Freedson cut-points. Employment status was self-reported as full time, part time, unemployed, keeping house, or raising children. Self-reported job duties were categorized into 23 major groups using the 2010 Standard Occupational Classification. Analysis: Omnibus differences were analyzed using adjusted analysis of covariance and repeated after stratification by race (black/white) and sex (female/male). Results: SED≥30, SED<30, LPA, and MVPA<10 differed significantly by employment and occupational categories (P ≤.05), while MVPA≥10 did not (P ≥.50). SED≥30, SED<30, and LPA differed by occupational classification in men, women, blacks, and whites (P <.05). Mean activity counts, MVPA<10, and MVPA≥10 were significantly different across occupational classifications in whites (P ≤.05), but not in blacks (P >.05). Significant differences in mean activity counts and MVPA<10 across occupational classifications were found in males (P ≤.001), but not in females (P >.05). Conclusion: Time within activity intensity categories differs across employment and occupational classifications and by race and sex.

    Research areas

  • activity pattern, employment, occupation, occupational activity, sedentary behavior, workplace health

Citation formats


Quinn, T. D., Pettee Gabriel, K., Siddique, J., Aaby, D., Whitaker, K. M., Lane-Cordova, A., ... Barone Gibbs, B. (2020). Sedentary Time and Physical Activity Across Occupational Classifications. American Journal of Health Promotion, 34(3), 247-256.


Quinn, TD, Pettee Gabriel, K, Siddique, J, Aaby, D, Whitaker, KM, Lane-Cordova, A, Sidney, S, Sternfield, B & Barone Gibbs, B 2020, 'Sedentary Time and Physical Activity Across Occupational Classifications', American Journal of Health Promotion, vol. 34, no. 3, pp. 247-256.