Open AccessEffects of the Intensity of Lifestyle Exercise on Changes in Blood Pressure
Author(s) -
Carolyn H Still,
Shirley M. Moore,
Abdus Sattar
Publication year - 2020
Publication title -
western journal of nursing research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.552
H-Index - 62
eISSN - 1552-8456
pISSN - 0193-9459
DOI - 10.1177/0193945920969422
Subject(s) - blood pressure , medicine , heart rate , cardiology , diastole , cardiovascular event , intensity (physics) , population , physical therapy , physical activity , myocardial infarction , environmental health , physics , quantum mechanics
The purpose of this study was to investigate whether the amount of time participants exercised in the target heart rate zone (THRZ) influenced change in blood pressure (BP) one year following a cardiac event. Lifestyle exercise (habitual, small exercise opportunities) and intensity were objectively measured using portable heart rate monitors. Linear mixed models were used to analyze change in BP among 331 participants. Mean BP at baseline was 118/70 mmHg, and both systolic and diastolic BP increased from baseline to one year-4.79 mmHg ( p <.001) and 2.09 mmHg ( p =.002), respectively. Overall, participants had a decrease in levels of lifestyle exercise. After controlling for time, age, gender, and study group, SBP change was inversely associated with amount of time in THRZ. Given suboptimal engagement in recommended exercise, the underlying mechanisms of lifestyle exercise effects on the time spent in THRZ to reduce BP warrants further study in this population.