Daily Environmental Differences in Blood Pressure and Heart Rate Variability in Healthy Premenopausal Women

作者:James Gary D*; Bovbjerg Dana H; Hill Leah A
来源:American Journal of Human Biology, 2015, 27(1): 136-138.
DOI:10.1002/ajhb.22609

摘要

ObjectivesAs daily environments change, behavior and activity also change and as blood pressure (BP) and heart rate (HR) are allostatically tied to these factors, one might expect that environments that elicit the greatest behavioral/activity variation should also evince the highest BP and HR variability [standard deviation (SD) or coefficient of variation (CV)]. The purpose of this study was to evaluate this premise. MethodsTwo hundred and six women (age=37.69.1 years) wore an ambulatory BP monitor on a midweek workday. All worked in clerical, technical, or professional positions. Ambulatory BP and HR Means, SDs and CVs at work (11 AM-3 PM), home (approximate to 6-10 PM) and during sleep (approximate to 10 PM-6 AM) were compared using repeated measures ANCOVA. ResultsMean BP and HR decreased from work and home to sleep [121 +/- 11, 120 +/- 11 vs. 107 +/- 12 systolic; 82 +/- 10, 80 +/- 11 vs. 66 +/- 11 diastolic; 79 +/- 12, 80 +/- 12 vs. 68 +/- 11 HR (all P<0.001)], while the CV of systolic and diastolic BP increased [0.06 +/- 0.02, 0.07 +/- 0.02 vs. 0.08 +/- 0.03 systolic; 0.09 +/- 0.03, 0.10 +/- 0.04 vs. 0.12 +/- 0.05 diastolic (P<0.001)]. The HR SD decreased during sleep [8.1 +/- 3.8, 8.2 +/- 3.8 vs. 6.9 +/- 3.2 (P<0.001)]. ConclusionsHR variability follows the expected variability pattern with behavior and activity, whereas BP does not. Am. J. Hum. Biol. 27:136-138, 2015.

  • 出版日期2015-2