scholarly journals Heart rate variability and cardiorespiratory fitness in African American men

2013 ◽  
Vol 27 (S1) ◽  
Author(s):  
Robert Louis Herron ◽  
Mike R Esco
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
African American ◽  
Cardiorespiratory Fitness ◽  
African American Men

scholarly journals Heart Rate Variability and Inflammatory Stress Response in Young African American Men: Implications for Cardiovascular Risk

2021 ◽  
Vol 8 ◽  
Author(s):  
Dina Tell ◽  
Robert L. Burr ◽  
Herbert L. Mathews ◽  
Linda Witek Janusek
Keyword(s):  
Cardiovascular Disease ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
African American ◽  
Adverse Childhood Experiences ◽  
African American Men ◽  
Childhood Adversity ◽  
Childhood Experiences ◽  
Adverse Childhood ◽  
Response To Stress

Background: African American men have a disproportionately higher incidence of and suffer greater severity and earlier death from cardiovascular disease (CVD). A common feature of many diseases, which disproportionately afflict disadvantaged African Americans, is inflammation. In particular, inflammation plays a decisive role in the pathogenesis of CVD in that persistent inflammation contributes to plaque evolution and destabilization. Adverse childhood experiences increase the risk for adult inflammatory based disease, particularly cardiovascular disease. This inflammatory burden becomes evident during stressful events and may be related to alterations in autonomic nervous system (ANS) activity. We previously reported that African American men who experienced childhood adversity exhibited a greater inflammatory (IL-6) response to acute stress challenge (Trier Social Stress Test – TSST). The purpose of this study was to determine whether altered ANS activity, as measured by heart rate variability (HRV), contributes to a greater proinflammatory response to stress in those exposed to childhood adversity.Methods: Thirty-four African American adult males underwent the TSST while instrumented with Holter monitors to record continuous heart rate for HRV determination. HRV was calculated as the low frequency (LF) to high frequency (HF) heart rate ratio (LF/HF), with higher LF/HF ratios corresponding to higher sympathetic vs. parasympathetic activity. Salivary samples were collected pre- and post-TSST to measure the proinflammatory cytokine IL-6. Childhood adversity was assessed by the Childhood Trauma Questionnaire.Results: Hierarchical linear modeling demonstrated that higher levels of physical abuse were related to a steeper rise in LF/HF ratio during the TSST. Further, a higher LF/HF ratio, in combination with greater exposure to emotional and physical abuse was associated with a greater IL-6 response to the TSST.Conclusions: These findings suggest that adverse childhood experiences associate with an adult phenotype characterized by an altered ANS response to stress as well as a greater proinflammatory (IL-6) response to an acute stressor. Elevations in salivary inflammatory markers have been associated with increased CVD risk. In conclusion, these findings suggest a role for the ANS in the underlying neuro-biological processes whereby childhood adversity predisposes to a more intense inflammatory response to stressful challenge during adulthood.

scholarly journals Heart Rate Is a Better Predictor of Cardiorespiratory Fitness Than Heart Rate Variability in Overweight/Obese Children: The ActiveBrains Project

2019 ◽  
Vol 10 ◽  
Author(s):  
Abel Plaza-Florido ◽  
Jairo H. Migueles ◽  
Jose Mora-Gonzalez ◽  
Pablo Molina-Garcia ◽  
Maria Rodriguez-Ayllon ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Cardiorespiratory Fitness ◽  
Obese Children

scholarly journals Decrease of heart rate variability during exercise: an index of cardiorespiratory fitness

2021 ◽  
Author(s):  
Denis Mongin ◽  
Clovis Chabert ◽  
Manuel Gomez Extremera ◽  
Olivier Hue ◽  
Delphine Sophie Courvoisier ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Cardiorespiratory Fitness ◽  
Equation Model ◽  
Time Interval ◽  
Portable Devices ◽  
Promising Tool ◽  
Exponential Decrease ◽  
Exponential Trend ◽  
Fitness Measures

The present study proposes to measure and quantify the heart rate variability (HRV) changes during effort and to test the capacity of the produced indices to predict cardiorespiratory fitness measures. Therefore, the beat-to-beat cardiac time interval series of 18 adolescent athletes (15.2 +- 2.0 years) measured during maximal graded effort test were detrended using a dynamical first-order differential equation model. Heart rate variability was then calculated as the standard deviation of the detrended RR intervals within successive windows of one minute. The variation of this measure of HRV during exercise is properly adjusted by an exponential decrease of the heart rate. The amplitude and the decay rate of this exponential trend are strongly associated with maximum oxygen consumption, maximal aerobic power, and ventilatory thresholds. It indicates that among athletes with better fitness, HRV has higher values at low heart rate and decreases faster when the heart rate increases during exercise. This analysis, based only on cardiac measurements, provides a promising tool for the study of cardiac measurements generated by portable devices.

scholarly journals Effects of Coexistence Hypertension and Type II Diabetes on Heart Rate Variability and Cardiorespiratory Fitness

2018 ◽  
Author(s):  
Daniela Bassi ◽  
Ramona Cabiddu ◽  
Renata G. Mendes ◽  
Natália Tossini ◽  
Vivian M. Arakelian ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Cardiorespiratory Fitness ◽  
Type Ii Diabetes ◽  
Type Ii

scholarly journals Active coping moderates associations among race-related stress, rumination, and depressive symptoms in emerging adult African American women

2018 ◽  
Vol 30 (5) ◽  
pp. 1817-1835 ◽  
Author(s):  
Labarron K. Hill ◽  
Lori S. Hoggard
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
African American ◽  
Depressive Symptoms ◽  
African American Women ◽  
Active Coping ◽  
John Henryism ◽  
American Women ◽  
Related Stress ◽  
Race Related Stress

AbstractCross-sectional and longitudinal research has shown that race-related stress is associated with increased depressive symptoms among racial/ethnic minorities. Rumination has long been considered a maladaptive self-regulatory response to race-related stress, and growing evidence suggests that it may be an important link in the relation between race-related stress and depression. More adaptive forms of self-regulation, such as active coping, may counteract the negative impact of rumination. We examined the influence of rumination on the relation between race-related stress and depressive symptoms in a sample (N= 69) of young adult (mean age = 20 ± 1.5 years) African American women. We also considered the possible moderating effects of John Henryism, a form of persistent and determined goal striving, and vagally mediated heart rate variability, a purported biomarker of coping. Anticipatory race-related stress was indirectly associated with depressive symptoms through rumination: estimate = 0.07, 95% confidence interval [0.01, 0.16]. Both John Henryism and vagally mediated heart rate variability moderated the relationship between race-related stress and rumination; however, only John Henryism reliably influenced the indirect association between race-related stress and depression through rumination. We discuss these findings in the context of growing research examining the interplay between cultural and biological factors in the risk for poorer mental health.

scholarly journals Cardiorespiratory Fitness, Adiposity, and Heart Rate Variability

2019 ◽  
Vol 51 (3) ◽  
pp. 509-514 ◽  
Author(s):  
LIN Y. CHEN ◽  
RACHEL ZMORA ◽  
SUE DUVAL ◽  
LISA S. CHOW ◽  
DONALD M. LLOYD-JONES ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Cardiorespiratory Fitness
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