Physical activity and dose-characteristics in free-living conditions among patients awaiting coronary artery bypass graft surgery: a cross-sectional study
Abstract
Physical activity prior to elective coronary artery bypass grafting (CABG) surgery can potentially improve postoperative outcomes. The aim of the study was to evaluate subjectively and objectively physical activity levels and dose-characteristics in free-living conditions in patients awaiting CABG surgery. A single-centered cross-sectional subanalysis of 32 participants awaiting elective CABG surgery. Physical activity during the preoperative period was assessed subjectively with the SQUASH questionnaire and objectively with the Sensewear activity monitor (accelerometer with physiological sensors). The Wilcoxon signed-rank test was used to assess differences and Bland-Altman plots were used to assess the agreement between the measurement methods. Descriptive statistics were used for the dose-characteristics and Cohen’s Kappa for the proportion of participants fulfilling the Dutch guideline for healthy physical activity (NNGB). Duration of vigorous activity was significantly higher when measured subjectively (120 min/week) than objectively (7 min/week, p = 0.001). Bland-Altman plots showed that differences between the methods increased with longer durations of moderate and total activity. The dose-characteristics of physical activity measured with the SQUASH varied widely among the participants and it consisted mainly of leisure time activities and light household activities. The percentage of participants complying with the NNGB guideline was 74% when measured subjectively…
How strong is the evidence?
Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 32 participants or records.
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