scholarly journals Exercise training attenuates alterations in blood pressure and heart rate variability in old ovariectomized rats under fructose consumption (546.2)

2014 ◽  
Vol 28 (S1) ◽  
Author(s):  
Jacqueline Machi ◽  
Nathalia Bernardes ◽  
Danielle Dias ◽  
Ivana Moraes‐Silva ◽  
Fernando Santos ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
Ovariectomized Rats

scholarly journals Effects of Aerobic Exercise Training and Irbesartan on Blood Pressure and Heart Rate Variability in Patients with Chronic Obstructive Pulmonary Disease

2008 ◽  
Vol 15 (7) ◽  
pp. 355-360 ◽  
Author(s):  
Karine Marquis ◽  
François Maltais ◽  
Yves Lacasse ◽  
Yves Lacourcière ◽  
Claudette Fortin ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Chronic Obstructive Pulmonary Disease ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Placebo Group ◽  
Exercise Training ◽  
Pulmonary Disease ◽  
Aerobic Exercise Training ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease

BACKGROUND AND OBJECTIVES: The present pilot study was undertaken to evaluate the efficacy of an aerobic exercise training (AET) program alone or combined with an antihypertensive agent (irbesartan) to reduce blood pressure (BP) and enhance heart rate variability (HRV) in chronic obstructive pulmonary disease patients.METHODS: Twenty-one patients were randomly assigned to a double-blind treatment with exercise and placebo (n=11) or exercise and irbesartan (n=10). Subjects underwent 24 h BP monitoring and 24 h electrocardiographic recording before and after the 12-week AET. HRV was investigated using three indexes from the power spectral analysis and three indexes calculated from the time domain. The AET program consisted of exercising on a calibrated ergocycle for 30 min three times per week. Five patients in the placebo group were excluded during follow-up because they were not compliant.RESULTS: There was no change in 24 h systolic and diastolic BP before (130±14 mmHg and 70±3 mmHg, respectively) and after (128±8 mmHg and 70±8 mmHg, respectively) exercise training in the placebo group, whereas in the irbesartan group systolic and diastolic BP decreased from 135±9 mmHg and 76±9 mmHg to 126±12 mmHg and 72±8 mmHg, respectively (P<0.02). There were no changes in HRV parameters in either group.CONCLUSIONS: The present study suggests that a 12-week AET program is not associated with a significant reduction in BP or enhancement in HRV, whereas an AET program combined with irbe-sartan is associated with a reduction in 24 h BP.

scholarly journals Differential effects of the blood pressure state on pulse rate variability and heart rate variability in critically ill patients

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Elisa Mejía-Mejía ◽  
James M. May ◽  
Mohamed Elgendi ◽  
Panayiotis A. Kyriacou
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Pulse Rate ◽  
Pulse Transit Time ◽  
Pulse Rate Variability ◽  
Physiological Factors ◽  
Ecg Signals ◽  
Non Invasive ◽  
Electrocardiogram Ecg

AbstractHeart rate variability (HRV) utilizes the electrocardiogram (ECG) and has been widely studied as a non-invasive indicator of cardiac autonomic activity. Pulse rate variability (PRV) utilizes photoplethysmography (PPG) and recently has been used as a surrogate for HRV. Several studies have found that PRV is not entirely valid as an estimation of HRV and that several physiological factors, including the pulse transit time (PTT) and blood pressure (BP) changes, may affect PRV differently than HRV. This study aimed to assess the relationship between PRV and HRV under different BP states: hypotension, normotension, and hypertension. Using the MIMIC III database, 5 min segments of PPG and ECG signals were used to extract PRV and HRV, respectively. Several time-domain, frequency-domain, and nonlinear indices were obtained from these signals. Bland–Altman analysis, correlation analysis, and Friedman rank sum tests were used to compare HRV and PRV in each state, and PRV and HRV indices were compared among BP states using Kruskal–Wallis tests. The findings indicated that there were differences between PRV and HRV, especially in short-term and nonlinear indices, and although PRV and HRV were altered in a similar manner when there was a change in BP, PRV seemed to be more sensitive to these changes.

scholarly journals Ethnic and sex differences in the longitudinal association between heart rate variability and blood pressure

2021 ◽  
pp. 1-7
Author(s):  
LaBarron K. Hill ◽  
Julian F. Thayer ◽  
DeWayne P. Williams ◽  
James D. Halbert ◽  
Guang Hao ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Sex Differences ◽  
Longitudinal Association

Exercise training reduces the sympathetic component of the blood pressure-heart rate baroreflex in man

1992 ◽  
Vol 2 (4) ◽  
pp. 292
Author(s):  
B A Kingwell ◽  
A M Dart ◽  
G L Jennings ◽  
P I Korner
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Exercise Training

Effect of exercise training on heart rate variability in healthy older adults

1999 ◽  
Vol 138 (3) ◽  
pp. 567-576 ◽  
Author(s):  
Phyllis K. Stein ◽  
Ali A. Ehsani ◽  
Peter P. Domitrovich ◽  
Robert E. Kleiger ◽  
Jeffrey N. Rottman
Keyword(s):  
Older Adults ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
Healthy Older Adults
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