Racial Difference in Mean Pulse Rate of Children Aged 6 to 11 Years

PEDIATRICS ◽  
1978 ◽  
Vol 61 (1) ◽  
pp. 119-121
Author(s):  
Richard B. Shekelle ◽  
Shuguey Liu ◽  
William J. Raynor ◽  
Robert A. Miller
Keyword(s):  
Heart Rate ◽  
Pulse Rate ◽  
Racial Difference ◽  
Health Examination ◽  
Rapid Eye Movement Sleep ◽  
Hypertensive Disease ◽  
White Children ◽  
Black And White ◽  
Using Data ◽  
Mean Heart Rate

Schachter and colleagues observed that black newborns have a higher mean heart rate than white newborns during non-rapid eye movement sleep, and this observation reportedly has been repeated at other laboratories.1,2 In Schachter's experience, the racial difference has persisted through the sixth month of life.3 Since heart rate is correlated cross-sectionally with level of blood pressure in adults4 and adolescents,5 and since increased heart rate in young adults is associated prospectively with risk of hypertensive disease,6-8 a racial difference in heart rate of newborns might be related to the racial difference in risk of hypertension. For these reasons, we investigated differences in mean pulse rate between black and white children, using data collected by the National Health Examination Survey (NHES).

Circadian blood pressure and heart rate rhythms in mice

1999 ◽  
Vol 276 (2) ◽  
pp. R500-R504 ◽  
Author(s):  
Ping Li ◽  
Steven H. Sur ◽  
Ralph E. Mistlberger ◽  
Mariana Morris
Keyword(s):  
Heart Rate ◽  
Sampling Rate ◽  
Eating Patterns ◽  
Cardiovascular Parameters ◽  
C57bl Mice ◽  
Weight Analysis ◽  
Using Data ◽  
Computerized Monitoring ◽  
Carotid Arterial ◽  
Mean Heart Rate

The circadian pattern of mean arterial pressure (MAP) and heart rate (HR) was measured in C57BL mice with carotid arterial catheters. Cardiovascular parameters were recorded continuously with a computerized monitoring system at a sampling rate of 100 Hz. The tethered animals were healthy, showing stabilized drinking and eating patterns within 2 days of surgery and little loss of body weight. Analysis of the 24-h pattern of MAP and HR was conducted using data from 3–6 consecutive days of recording. A daily rhythm of MAP was evident in all mice, with group mean dark and light values of 101.4 ± 7.3 and 93.1 ± 2.9 mmHg, respectively. The group mean waveform was bimodal, with peak values evident early and late in the dark period, and a trough during the middle of the light period. The phase of maximum and minimum values showed low within-group variance. Mean heart rate was greater at night than during the day (561.9 ± 22.7 vs. 530.3 ± 22.3 beats/min). Peak values generally occurred at dark onset, and minimum values during the middle of both the dark and the light periods. We conclude that it is possible to perform measurements of circadian cardiovascular parameters in the mouse, providing new avenues for the investigation of genetic models.

Attractiveness/Beauty and Color Preferences Among Black and White Children

2008 ◽  
Author(s):  
Stephen N. Campbell ◽  
Christian Delucia ◽  
Erin Hughes ◽  
Marybeth Bailar-Heath ◽  
Tom McDonagh ◽  
...  
Keyword(s):  
Color Preferences ◽  
White Children ◽  
Black And White

Racial Disparities in Allergic Outcomes Persist to Age 10 Years in Black and White Children

PEDIATRICS ◽  
2020 ◽  
Vol 146 (Supplement 4) ◽  
pp. S330.2-S331
Author(s):  
Timothy Chow ◽  
Jeffrey Chambliss
Keyword(s):  
Racial Disparities ◽  
White Children ◽  
Black And White

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 The Role of Stressful Childhood Experiences in Shaping Later-Life Memory Loss Among Black and White U.S. Adults

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 296-296
Author(s):  
Caroline Hartnett
Keyword(s):  
Cognitive Decline ◽  
Memory Loss ◽  
Later Life ◽  
Behavioral Risk ◽  
Black Adults ◽  
Childhood Experiences ◽  
White Children ◽  
Black And White ◽  
Stressful Experiences ◽  
White Adults

Abstract Cognitive decline common in the U.S. and greatly impacts quality of life, both for those who experience it and for those who care for them. Black Americans experience higher burdens of cognitive decline but the mechanisms underlying this disparity have not been fully elucidated. Stress experienced in early life is a promising explanatory factor, since stress and cognition are linked, childhood stressors been shown to have a range of negative implications later in life, and Black children experience more childhood stressors than White children, on average. In this paper, we use data from the Behavioral Risk Factor Surveillance System (BRFSS) to examine whether stressful experiences in childhood help explain Black-White disparities in memory loss. These data were available for 5 state-years between 2011 and 2017 (n=11,708). Preliminary results indicate that, while stressful childhood experiences are strongly associated with memory loss, stressful experiences do not mediate the association between race and memory loss. However, race does appear to moderate the association between stressful childhood experiences and memory loss. Specifically, stressful experiences are associated with a higher likelihood of memory loss for Black adults compared to White adults.In addition, there seem to be some noteworthy patterns across different types of experiences (i.e. parental drinking may predict later memory loss more strongly for Black adults than White adults, but parental hitting may predict memory loss more strongly for White adults than Black adults).

scholarly journals Unraveling the Effects of Social Class and Systemic Racism on Advance Care Planning

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 472-472
Author(s):  
Jenny McDonnell
Keyword(s):  
End Of Life ◽  
Advance Care Planning ◽  
End Of Life Care ◽  
Black Americans ◽  
Low Ses ◽  
Care Planning ◽  
Life Care ◽  
Black And White ◽  
Advance Care ◽  
Using Data

Abstract While advance care planning (ACP) is recognized as a key facilitator of high-quality, goal-concordant end-of-life care, black Americans are less likely to participate in ACP than non-Hispanic whites (Carr 2011; Detering et al. 2010). There are divided explanations for why these disparities persist. Some scholars attribute racial disparities in end-of-life care to socioeconomic (SES) differences between black and white Americans citing blacks’ and whites’ differentiated access to, control over, and use of material resources (Wilson 1978; Yearby 2011). Others assert that health care preferences do not solely reflect lack of resources or health literacy, but that the larger social context frames care preferences differently across racial and ethnic groups in American society (Alegria et al. 2011; Sewell and Pingel forthcoming). By turning the analytical lens to class-privileged black Americans, I investigate whether racism overflows the margins of class disadvantage. Using data from the Health and Retirement Study, I ran logistic regression and moderation models. I found that class-privileged blacks are less likely to engage in ACP than both high-SES and low-SES whites. The interaction of race and SES was negatively and significantly associated with ACP (OR=0.91; P<0.05), indicating that SES has a stronger effect on the probability of ACP among whites than among blacks. Predicted probabilities show that 51% of low-SES whites are likely to engage in ACP compared to 32% of high-SES blacks. These findings indicate that racialized disparities in ACP exist independent of SES, and that the effects of SES and race are intersectional rather than simply additive.

Heart rate responses and plasma cortisol concentrations in ewes: comparison between cervical and laparoscopic intrauterine insemination and their associated handling procedures

1998 ◽  
Vol 66 (2) ◽  
pp. 383-387 ◽  
Author(s):  
M. Khalid ◽  
W. Haresign ◽  
D. G. Bradley
Keyword(s):  
Heart Rate ◽  
Stress Responses ◽  
Plasma Cortisol ◽  
Intrauterine Insemination ◽  
Management Practice ◽  
Treatment Groups ◽  
Cortisol Responses ◽  
The Mean ◽  
Pre Treatment ◽  
Mean Heart Rate

AbstractThis study consisted of two experiments. In experiment 1, stress responses of sheep which were restrained either in a laparoscopy cradle or a roll-over cradle were compared. The results of this experiment indicated that restraint in roll-over cradle is less (P < 0·05) stressful than that in a laparoscopy cradle when assessed in terms of the elevation and duration of both the mean heart rate and plasma cortisol responses. Experiment 2 compared the stress responses of sheep subjected to restraint in a laparoscopy cradle, restraint in a laparoscopy cradle with intrauterine artificial insemination (AI) by laparoscopy, minimal restraint with cervical AI or restraint in a roll-over cradle plus foot-trimming. All treatments resulted in significant elevations in both heart rate and plasma cortisol concentrations (F < 0·001). The peak heart rate was significantly (P < 0·05) higher in ewes subjected to cervical AI than in those subjected to intrauterine insemination, with other treatments intermediate. The peak cortisol response did not differ among different treatments. The duration over which both the mean heart rate and -plasma cortisol concentrations remained significantly elevated above pre-treatment concentrations did not differ among treatment groups. The results of this study suggest that while restraint using a laparoscopy cradle is more stressful than that using a rollover cradle, the stress inflicted by intrauterine insemination by laparoscopy itself is no greater than that due to restraint using the laparoscopy cradle alone, cervical AI or the management practice offoot-trimming using a rollover cradle.

Sign in / Sign up

Export Citation Format

Share Document