健康年轻人的最大脂肪氧化率。性别对心肺健康水平的影响。

IF 1.6 4区医学 Q1 ANTHROPOLOGY

American Journal of Human Biology Pub Date : 2025-01-24 DOI:10.1002/ajhb.24212

Diego Jaén-Carrillo, Felipe García-Pinillos, Abel Plaza-Florido, Leonardo Riquelme-Sebastián, Iván Fernández-Navarrete, Santiago A. Ruiz-Alias

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引用次数: 0

摘要

在久坐不动的健康年轻成年人中，最大脂肪氧化（MFO）和引起最大脂肪氧化（FATMAX）的运动强度与心脏代谢危险因素呈负相关。然而，心肺适能（CRF）水平和性别如何影响运动时的MFO和FATMAX却鲜有分析。目的：本研究旨在确定CRF和性别对MFO的影响。方法：20名健康年轻人（12名男性和8名女性）完成了分级跑步机方案，以测定MFO、MFO相对于瘦质量（MFOlean）、FATMAX和最大摄氧量（VO2max）。结果:k - means聚类分析被用来将样本划分为两个不同的组CRF水平(56.54±2.54,46.94±3.07毫升/公斤/分钟,精益页)(3.34±1.44,2.73±0.87 g·最低为1公斤,p = 0.001),和FATMAX公里·h (FATMAXv)(7.67±0.90,7.00±0.97公里·h - p = 0.044,)但不是MFO(0.67±0.19,0.71±0.20,p = 0.124)。按性别划分，男性的MFO（0.76±0.21比0.69±0.19 g·min-1, p = 0.039）和FATMAXv（7.67±0.96比7.30±0.98 km·h-1, p = 0.036）和女性的MFOlean（3.92±1.35比2.40±0.46 g·min-1·kg, p = 0.015）较高。结论：本研究突出了CRF水平和性别对MFO和FATMAX的显著影响，为制定运动计划和优化健康和表现干预措施提供了有价值的见解。

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Maximal Fat Oxidation Rate in Healthy Young Adults. Influence of Cardiorespiratory Fitness Level and Sex

Introduction

The maximal fat oxidation (MFO) and the exercise intensity that provokes MFO (FATMAX) are inversely associated with cardiometabolic risk factors in healthy young sedentary adults. However, how both cardiorespiratory fitness (CRF) level and sex influence MFO during exercise and the FATMAX is seldom analyzed.

Objectives

This study is aimed at determining the influence of CRF and sex on MFO.

Methods

Twenty healthy young adults (i.e., 12 men and 8 women) completed a graded treadmill protocol to determine MFO, MFO relative to lean mass (MFO_lean), FATMAX and maximum oxygen uptake (VO_2max).

Results

The k-means cluster analysis was used to divide the sample into two different groups for CRF level (56.54 ± 2.54 and 46.94 ± 3.07 mL/kg/min, p < 0.001, respectively). The high-level group revealed higher MFO relative to lean mass (MFO_lean) (3.34 ± 1.44 and 2.73 ± 0.87 g · min⁻¹ · kg, p = 0.001, respectively), and FATMAX in km · h⁻¹ (FATMAX_v) (7.67 ± 0.90 and 7.00 ± 0.97 km · h⁻¹, p = 0.044, respectively) but not for MFO (0.67 ± 0.19 and 0.71 ± 0.20 p = 0.124, respectively). When divided for sex, men exhibited higher values for MFO (0.76 ± 0.21 vs. 0.69 ± 0.19 g · min⁻¹, p = 0.039) and FATMAXv (7.67 ± 0.96 vs. 7.30 ± 0.98 km · h⁻¹, p = 0.036), while women showed higher values for MFO_lean (3.92 ± 1.35 vs. 2.40 ± 0.46 g · min⁻¹ · kg, p = 0.015).

Conclusion

This study highlights the significant influence of CRF level and sex on MFO and FATMAX, offering valuable insights for tailoring exercise programs and optimizing health and performance interventions.

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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.