Ludo M. Van Etten
A5072178259- Obesity, Physical Activity, Diet
- Body Composition Measurement Techniques
- Behavioral Health and Interventions
- Nutritional Studies and Diet
- Evolutionary Psychology and Human Behavior
- Diet and metabolism studies
- Birth, Development, and Health
- Thermoregulation and physiological responses
- Climate Change and Health Impacts
- Clinical Nutrition and Gastroenterology
- Adipose Tissue and Metabolism
- Eating Disorders and Behaviors
- Spaceflight effects on biology
- Environmental Impact and Sustainability
- Nutrition and Health in Aging
- Motivation and Self-Concept in Sports
- Child Nutrition and Water Access
- Energy, Environment, and Transportation Policies
- Agriculture Sustainability and Environmental Impact
- Animal Behavior and Reproduction
Maastricht University Medical Centre
2024-2025
Maastricht University
2021-2023
Fred Hutch Cancer Center
2022
Moi University
2022
Total daily energy expenditure ("total expenditure") reflects needs and is a critical variable in human health physiology, but its trajectory over the life course poorly studied. We analyzed large, diverse database of total measured by doubly labeled water method for males females aged 8 days to 95 years. increased with fat-free mass power-law manner, four distinct stages. Fat-free mass-adjusted accelerates rapidly neonates ~50% above adult values at ~1 year; declines slowly levels ~20...
Understanding the impacts of activity on energy balance is crucial. Increasing levels may bring diminishing returns in expenditure because compensatory responses non-activity expenditures.1Pontzer H. Durazo-Arvizu R. Dugas L.R. Plange-Rhule J. Bovet P. Forrester T.E. Lambert E.V. Cooper R.S. Schoeller D.A. Luke A. Constrained total and metabolic adaptation to physical adult humans.Curr. Biol. 2016; 26: 410-417Abstract Full Text PDF PubMed Scopus (145) Google Scholar, 2Halsey L.G. The mystery...
The doubly labeled water (DLW) method measures total energy expenditure (TEE) in free-living subjects. Several equations are used to convert isotopic data into TEE. Using the International Atomic Energy Agency (IAEA) DLW database (5,756 measurements of adults and children), we show considerable variability is introduced by different equations. estimated rCO2 sensitive dilution space ratio (DSR) two isotopes. Based on performance validation studies, propose a new equation based estimate mean...
Water is essential for survival, but one in three individuals worldwide (2.2 billion people) lacks access to safe drinking water. intake requirements largely reflect water turnover (WT), the used by body each day. We investigated determinants of human WT 5604 people from ages 8 days 96 years 23 countries using isotope-tracking (
Abstract Nutritional epidemiology aims to link dietary exposures chronic disease, but the instruments for evaluating intake are inaccurate. One way identify unreliable data and sources of errors is compare estimated intakes with total energy expenditure (TEE). In this study, we used International Atomic Energy Agency Doubly Labeled Water Database derive a predictive equation TEE using 6,497 measures in individuals aged 4 96 years. The resultant regression predicts expected from easily...
Physical activity may be a way to increase and maintain fat-free mass (FFM) in later life, similar the prevention of fractures by increasing peak bone mass.
In mammals, trait variation is often reported to be greater among males than females. However, date, mainly only morphological traits have been studied. Energy expenditure represents the metabolic costs of multiple physical, physiological, and behavioral traits. could exhibit particularly high male through a cumulative effect if those mostly variation, or lack many them do not. Sex differences in energy little explored. We analyzed large database on adult humans (1494 3108 females)...
Abstract Low total energy expenditure (TEE, MJ/d) has been a hypothesized risk factor for weight gain, but repeatability of TEE, critical variable in longitudinal studies balance, is understudied. We examine repeated doubly labeled water (DLW) measurements TEE 348 adults and 47 children from the IAEA DLW Database (mean ± SD time interval: 1.9 2.9 y) to assess if adjusted age, sex, fat-free mass, fat mass associated with changes or body composition. Here, we report that high adults, not...
There is considerably greater variation in metabolic rates between men than women, terms of basal, activity and total (daily) energy expenditure (EE). One possible explanation that EE associated with male sexual characteristics (which are known to vary more other traits) such as musculature athletic capacity. Such traits might be predicted most prominent during periods adolescence young adulthood, when behaviour develops peaks. We tested this hypothesis on a large dataset by comparing the...