心肺适能
最大VO2
医学
内科学
身体素质
年龄组
无脂块
人口学
心率
内分泌学
肥胖
物理疗法
脂肪团
血压
社会学
作者
Jacob Frandsen,Francisco J. Amaro‐Gahete,Ann Vissing Landgrebe,Flemming Dela,Jonatan R. Ruiz,Jørn Wulff Helge,Steen Larsen
标识
DOI:10.1139/apnm-2021-0080
摘要
Fat oxidation decreases with age, yet no studies have previously investigated if aging affects the maximal fat oxidation rate (MFO) during exercise in men and women differently. We hypothesized that increased age would be associated with a decline in MFO and this would be more pronounced in women due to menopause, compared with men. In this cross-sectional study design, 435 (247/188, male/female) subjects of varying ages performed a DXA scan, a submaximal graded exercise test and a maximal oxygen uptake test, to measure MFO and cardiorespiratory fitness (CRF) by indirect calorimetry. Subjects were stratified into 12 groups according to sex (male/female), age (<45, 45-55 and >55 years), CRF (below average and above average). Women aged <45 years had a higher MFO relative to fat free mass (FFM) (mg/min/kg) compared with men, regardless of CRF. However, there were no differences in MFO (mg/min/kg FFM) between men and women, in the groups aged between 45-55 and >55 years. In summary, we found that women aged <45 years display a higher MFO (mg/min/kg FFM) compared with men and that this sexual divergence is abolished after the age of 45 years. Novelty: Maximal fat oxidation rate is higher in young women compared with men. This sex-related difference is attenuated after the age of 45 years. Cardiorespiratory fitness does not influence this sex-related difference.
科研通智能强力驱动
Strongly Powered by AbleSci AI