Heart Rate and Its Variability Are Associated With Resting Metabolic Rate and Substrate Oxidation in Young Women but Not in Men

IF 1.6 4区医学 Q1 ANTHROPOLOGY

American Journal of Human Biology Pub Date : 2024-09-20 DOI:10.1002/ajhb.24157

Juan M. A. Alcantara, Anabel González-Acedo, Francisco J. Amaro-Gahete, Abel Plaza-Florido

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Abstract

Background

This study aims to examine the relationship between resting vagal-related heart rate variability (HRV) parameters and heart rate (HR) with resting metabolic rate (RMR) and respiratory exchange ratio (RER) in young adults.

Methods

A total of 74 young adults (22 ± 2 years old, 51 women) were included in this cross-sectional study. HRV was assessed using a HR monitor, whereas RMR and RER were determined by indirect calorimetry.

Results

Linear regression analyses showed a positive association between HR and RER in women (standardized β = 0.384, p = 0.008), while negative associations were observed between vagal-related HRV parameters and RER in women (β ranged from −0.262 to −0.254, all p ≤ 0.042). No significant association was found between the abovementioned physiological parameters in men.

Conclusion

Here, we show that HR is positively associated with RER in young women but not in men, while vagal-related HRV parameters are inversely related to RMR, therefore suggesting a potential sexual dimorphism between cardiac rhythm and its relationship with markers of cardiometabolic health status.

Trial Registration: ClinicalTrials.gov identifier: NCT02365129.

Abstract Image

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年轻女性的心率及其变化与静息代谢率和底物氧化有关，但与男性无关。

背景：本研究旨在探讨青壮年静息迷走神经相关心率变异性（HRV）参数和心率（HR）与静息代谢率（RMR）和呼吸交换比（RER）之间的关系：这项横断面研究共纳入了 74 名年轻成年人（22 ± 2 岁，51 名女性）。心率变异通过心率监测仪进行评估，而 RMR 和 RER 则通过间接热量计测定：线性回归分析表明，女性心率与 RER 之间存在正相关（标准化 β = 0.384，p = 0.008），而女性迷走神经相关心率变异参数与 RER 之间存在负相关（β 在 -0.262 至 -0.254 之间，所有 p 均小于 0.042）。在男性中，上述生理参数之间没有发现明显的关联：结论：我们在这里发现，年轻女性的心率与RER呈正相关，而男性则不然，迷走神经相关的心率变异参数与RMR呈反相关，这表明心律及其与心脏代谢健康状况指标之间存在潜在的性别二态性：试验注册：ClinicalTrials.gov identifier：NCT02365129.

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来源期刊

American Journal of Human Biology 生物-生物学

CiteScore

4.80

自引率

13.80%

发文量

124

审稿时长

4-8 weeks

期刊介绍： The American Journal of Human Biology is the Official Journal of the Human Biology Association. The American Journal of Human Biology is a bimonthly, peer-reviewed, internationally circulated journal that publishes reports of original research, theoretical articles and timely reviews, and brief communications in the interdisciplinary field of human biology. As the official journal of the Human Biology Association, the Journal also publishes abstracts of research presented at its annual scientific meeting and book reviews relevant to the field. The Journal seeks scholarly manuscripts that address all aspects of human biology, health, and disease, particularly those that stress comparative, developmental, ecological, or evolutionary perspectives. The transdisciplinary areas covered in the Journal include, but are not limited to, epidemiology, genetic variation, population biology and demography, physiology, anatomy, nutrition, growth and aging, physical performance, physical activity and fitness, ecology, and evolution, along with their interactions. The Journal publishes basic, applied, and methodologically oriented research from all areas, including measurement, analytical techniques and strategies, and computer applications in human biology. Like many other biologically oriented disciplines, the field of human biology has undergone considerable growth and diversification in recent years, and the expansion of the aims and scope of the Journal is a reflection of this growth and membership diversification. The Journal is committed to prompt review, and priority publication is given to manuscripts with novel or timely findings, and to manuscripts of unusual interest.