Prince, StephanieBlanchard, Chris MGrace, SherryReid, Robert D.2025-06-042025-06-042020-08-29Stephanie A Prince, Christopher M Blanchard, Sherry L Grace, Robert D Reid, Objectively-measured sedentary time and its association with markers of cardiometabolic health and fitness among cardiac rehabilitation graduates, European Journal of Preventive Cardiology, Volume 23, Issue 8, 1 May 2016, Pages 818–825, https://doi.org/10.1177/20474873156171012047-48812047-4873https://doi.org/10.1177/2047487315617101https://hdl.handle.net/10315/42907This is a pre-copyedited, author-produced version of an article accepted for publication in the European Journal of Preventive Cardiology following peer review. The version of record Stephanie A Prince, Christopher M Blanchard, Sherry L Grace, Robert D Reid, Objectively-measured sedentary time and its association with markers of cardiometabolic health and fitness among cardiac rehabilitation graduates, European Journal of Preventive Cardiology, Volume 23, Issue 8, 1 May 2016, Pages 818–825, https://doi.org/10.1177/2047487315617101 is available online at: https://academic.oup.com/eurjpc/article/23/8/818/5927383 or https://doi.org/10.1177/2047487315617101Background Sedentary time is an independent risk factor for cardiometabolic disease and mortality. It is unknown how much time individuals with coronary artery disease spend being sedentary or how their sedentary time relates to markers of health. The objectives of this study were to: (a) quantify sedentary time in a post-cardiac rehabilitation (CR) population, and (b) assess association with cardiometabolic risk, independent of moderate-to-vigorous physical activity. Design Cross-sectional. Methods As part of a larger trial, 263 recent CR graduates (∼10 days post-CR, mean age 63.6 ± 9.3 years, 75% male) wore an ActiGraph GT3X accelerometer during waking hours (≥4 days, ≥10 hours/day) to quantify sedentary time (≤150 counts per minute). Spearman correlations were computed to assess relationships between sedentary time (adjusted for wear time) with markers of cardiometabolic health and fitness. Significant markers were examined using multiple linear regressions. Results Participants spent an average of 8 hours/day sedentary (∼14 bouts/day). Sedentary time was negatively correlated with high-density lipoprotein and O2peak and positively correlated with triglycerides, body mass index and waist circumference. After adjusting for age, sex, medications and moderate-to-vigorous physical activity, hours/day of sedentary time remained significantly associated with logO2peak (β = −0.02, p = 0.001) and body mass index (β = 0.49, p = 0.02). Conclusions Findings suggest that even among a group of post-CR individuals who are already probably more active than patients who have not undergone CR, sedentary time remains high and is associated with poorer cardiorespiratory fitness, suggesting a possible new area of focus among CR programs.enSedentary lifestyleMotor activityHeart diseasesRehabilitationArticle