Nathalie Michels
Biographic Data
| ID | 169591 |
|---|---|
| NAME | Nathalie Michels |
| GIVEN NAMES | Nathalie |
| FAMILY NAME | Michels |
| SIGNATURE | MICHELS N |
| AFFILIATIONS | Ghent University |
| ORCID | 0000-0003-2578-6196 |
| VERIFIED | Yes |
| TOTAL WORKS | 38 |
| TOTAL CITATIONS | 52 |
| AUTHOR COUNT | 38 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 3 |
The power of friendships in adolescents' daily lives: Bi‐directional within‐person associations between friendship interaction quality and affect
Friends play a critical role in adolescent development, yet relatively little is known about how friendship interactions in adolescents' daily lives relate to their affective experiences. This study examined bidirectional associations between friendship interaction quality (i.e., warmth and conflict) and momentary affect, as well as whether these associations were moderated by individual differences (i.e., depressive symptoms, habitual rumination…
From Basic Psychological Need Frustration to Stress Responses: Examining how Bullying Victimization Sensitizes Daily-Life Experiences in Adolescence
Examining systemic inflammation as a pathway linking peer victimization to depressive symptoms in adolescence
BACKGROUND: Adolescents exposed to victimization are at an increased risk for a variety of adverse mental health outcomes, including depressive symptoms. Yet, the biological pathways underlying these associations remain poorly understood. Focusing on within-person processes, we examined whether low-grade systemic inflammation mediated the longitudinal associations between peer victimization and depressive symptoms in adolescence. METHODS: = 12.69…
Within-person associations between emotion regulation and negative affect in adolescents’ daily life
Adolescence is marked by elevated levels of negative affect (NA) and is a crucial period for the development of emotion regulation (ER). To date, relatively little is known about how adolescents' daily use of different ER strategies (ERS) is associated with momentary affective experiences. To elucidate these dynamics, we investigated whether (a) within-person differences in using different ERS were related to momentary NA and positive affect, (b)…
Worldwide trends in underweight and obesity from 1990 to 2022: A pooled analysis of 3663 population-representative studies with 222 million children, adolescents, and adults
BACKGROUND: Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries and territories. METHODS: ). For school-aged children and adolescents, we report thinness (BMI 2 SD above the median). FINDINGS: From 1990 to 20…
Implementation of a minimally invasive cell culture system to measure the regulation of inflammation in a school‐based sample of adolescents
Dysregulated inflammation underlies many human diseases, and measures of responsiveness to activation, and sensitivity to inhibition, provide important information beyond baseline assessments of chronic inflammation. This study implements a simplified cell culture protocol in a school‐based setting, using finger stick capillary blood collected from 333 adolescents (age 11.4–15.6 years) incubated with lipopolysaccharide (LPS). Median cytokine resp…
Treatment Effects on Psychophysiological Stress Responses in Youth With Obesity
OBJECTIVE: Stress plays a central role in obesity development, but research on treatment options to tackle elevated stress levels in youth with obesity is scarce. The present study examined the impact of the Multidisciplinary Obesity Treatment (MOT; lifestyle intervention including physical exercise, healthy meals, and cognitive behavioral techniques) on physiological stress parameters in youth with obesity and assessed whether adding emotion reg…
Supporting vulnerable families’ meal practices: Process evaluation of a nationwide intervention implemented by a retailer and social organizations
The study protocol was pre‐registered prior to data collection at Clinicaltrials.gov (NCT05595551-27/10/2022)
Nature-Related Odors Influence Stress and Eating Behavior: A Laboratory Experiment With Pine and Grass Volatiles
Before and after Trier Social Stress Test, 91 participants (18–50 years, 67% women) inhaled one odor during 10 min: Scots pine, grass (=cis-3-hexenol), or control (=demineralized water). Group differences were tested on repeated measurements of stress (affect reports, salivary cortisol and heart rate variability) and eating behavior (food choice and craving). Both nature olfactory exposures improved some stress outcomes. Both were associated with…
Nature Sounds for Stress Recovery and Healthy Eating: A Lab Experiment Differentiating Water and Bird Sound
This lab-based study tested whether nature sounds can lead to less stress reactivity, better stress recovery, less stress-induced eating and healthy food choice stimulation, while differentiating between bird and water sounds. Before (5 min) and after (8 min) the Trier Social Stress Test, 59 participants (47% men, 18–30 years) were exposed to one of three soundtracks: birds, streaming water, or wind as control. Group differences were tested on ne…
‘Blue’ coasts: Unravelling the perceived restorativeness of coastal environments and the influence of their components
Intervention strategies to promote healthy and sustainable food choices among parents with lower and higher socioeconomic status
Our study reveals the preferences of lower and higher SES parents for practical intervention strategies, providing insight in what features these strategies should have to be acceptable and useful. Hence, the findings can inform the development of a tailored family-based intervention strategy to improve parental food choices in favor of increased health and sustainability
Determinants of healthy and sustainable food choices in parents with a higher and lower socioeconomic status: A qualitative study
Worldwide trends in hypertension prevalence and progress in treatment and control from 1990 to 2019: A pooled analysis of 1201 population-representative studies with 104 million participants
BACKGROUND: Hypertension can be detected at the primary health-care level and low-cost treatments can effectively control hypertension. We aimed to measure the prevalence of hypertension and progress in its detection, treatment, and control from 1990 to 2019 for 200 countries and territories. METHODS: We used data from 1990 to 2019 on people aged 30-79 years from population-representative studies with measurement of blood pressure and data on blo…
Is there stress eating in children and adolescents? A first validation of the Dutch version of the Salzburg Stress Eating Scale
Height and body-mass index trajectories of school-aged children and adolescents from 1985 to 2019 in 200 countries and territories: A pooled analysis of 2181 population-based studies with 65 million p…
BACKGROUND: Comparable global data on health and nutrition of school-aged children and adolescents are scarce. We aimed to estimate age trajectories and time trends in mean height and mean body-mass index (BMI), which measures weight gain beyond what is expected from height gain, for school-aged children and adolescents. METHODS: For this pooled analysis, we used a database of cardiometabolic risk factors collated by the Non-Communicable Disease …
Variations in accelerometry measured physical activity and sedentary time across Europe – harmonized analyses of 47,497 children and adolescents
The Moderating Role of Emotion Regulation in the Association Between Stressors With Psychological and Biological Measures in Adolescence
OBJECTIVE: This study explored the role of emotion regulation (ER) as a moderator in the stressor-adjustment outcome relationship while identifying the relevant stressors. METHODS: In 214 adolescents (10-18 years; 51.4% boys), stressors (parent and peer relations, negative events), psychological outcomes (adolescent perceived stress, psychopathology symptoms, negative affect), and biological measures related to the stress response (hair cortisol …
Cross-Sectional and Longitudinal Associations Between Psychosocial Well-Being and Cardiometabolic Markers in European Children and Adolescents
OBJECTIVE: Research examining aspects of positive mental health as potential predictors of cardiometabolic health in young populations is scarce. We investigated the associations between psychosocial well-being and waist circumference (WAIST), blood pressure (BP), the homeostasis model assessment for insulin resistance, triglycerides, and high-density lipoprotein cholesterol considering life-style factors as mediators. METHODS: Data of European c…
Rising rural body-mass index is the main driver of the global obesity epidemic in adults
Body-mass index (BMI) has increased steadily in most countries in parallel with a rise in the proportion of the population who live in cities 1,2 . This has led to a widely reported view that urbanization is one of the most important drivers of the global rise in obesity 3–6 . Here we use 2,009 population-based studies, with measurements of height and weight in more than 112 million adults, to report national, regional and global trends in mean B…
Measuring nutritional knowledge using Item Response Theory and its validity in European adolescents
Objective To analyse the Nutritional Knowledge Test (NKT) using Item Response Theory (ITR) analysis and to assess the construct validity of the Nutritional Knowledge Scale (NKTS) and its associations with adolescent food group consumption and nutritional biomarkers. Design Cross-sectional study. Setting Multicentre investigation conducted in ten European cities. Participants Adolescents aged 12·5–17·5 years ( n 3215) who completed over 75 % of th…
Relative validation of the adapted Mediterranean Diet Score for Adolescents by comparison with nutritional biomarkers and nutrient and food intakes: The Healthy Lifestyle in Europe by Nutrition in Ado…
Objective: To investigate whether adherence to the adapted Mediterranean Diet Score for Adolescents (MDS_A) and the adapted Mediterranean Diet Quality Index for Adolescents (KIDMED_A) is associated with better food/nutrient intakes and nutritional biomarkers. Design: The Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study is a cross-sectional study aiming to obtain comparable data on a variety of nutritional and health-related …
Emotion-driven impulsiveness but not decision-making ability and cognitive inflexibility predicts weight status in adults
Worldwide trends in body-mass index, underweight, overweight, and obesity from 1975 to 2016: A pooled analysis of 2416 population-based measurement studies in 128·9 million children, adolescents, and …
BACKGROUND: Underweight, overweight, and obesity in childhood and adolescence are associated with adverse health consequences throughout the life-course. Our aim was to estimate worldwide trends in mean body-mass index (BMI) and a comprehensive set of BMI categories that cover underweight to obesity in children and adolescents, and to compare trends with those of adults. METHODS: We pooled 2416 population-based studies with measurements of height…
Chronic Psychosocial Stress and Gut Health in Children: Associations With Calprotectin and Fecal Short-Chain Fatty Acids
OBJECTIVES: The mechanisms underpinning the association between chronic stress and gut health are poorly understood. We aimed to investigate the relationship between bacterial produced short-chain fatty acids, gut barrier function, and stress measures. METHODS: A fecal sample, hair sample, and questionnaire data were collected from 113 Belgian children (8-16 years old). Biological measures of stress included hair cortisol (most proximal 3 cm) and…
Stress, emotional eating behaviour and dietary patterns in children
Associations of reward sensitivity with food consumption, activity pattern, and BMI in children
Determinants of healthy and sustainable food choices in parents with a higher and lower socioeconomic status: A qualitative study
Is there stress eating in children and adolescents? A first validation of the Dutch version of the Salzburg Stress Eating Scale
Fat and lean tissue accretion in relation to reward motivation in children
Determinants of vitamin D status in young children: Results from the Belgian arm of the Idefics (Identification and Prevention of Dietary- and Lifestyle-Induced Health Effects in Children and Infants)…
Objective To describe the vitamin D status of Belgian children and examine the influence of non-nutritional determinants, in particular of anthropometric variables. Design Cross-sectional data of Belgian participants of the EU 6th Framework Programme IDEFICS (Identification and Prevention of Dietary- and Lifestyle-Induced Health Effects in Children and Infants) Study. Setting 25-Hydroxyvitamin D (25(OH)D) was measured using RIA. Vitamin D status …
Stress, emotional eating behaviour and dietary patterns in children
Cross-Lagged Associations Between Children’s Stress and Adiposity: The Children’s Body Composition and Stress Study
OBJECTIVE: The public health threats stress and adiposity have previously been associated with each other. Longitudinal studies are needed to reveal whether this association is bidirectional and the moderating factors. METHODS: In the longitudinal Children's Body Composition and Stress study, 316 children (aged 5-12 years) had measures of stress (questionnaires concerning negative life events, problem behavior, and emotions) and adiposity (body m…
The influence of dairy consumption, sedentary behaviour and physical activity on bone mass in Flemish children: A cross-sectional study
Already at young age, PA and dairy consumption positively influence whole body bone mass assessed by DXA. Moreover, this study indicates clearly that SB is negatively associated with whole body bone density. Promoting regular PA and sufficient dairy consumption in young children and limiting SB can be expected to positively influence their bone mass accumulation, which can help in the prevention of osteoporosis later in life
How is reward sensitivity related to food intake and adiposity
Blood lipids among young children in Europe. Results from the European Idefics study
Bidirectional associations between psychosocial well-being and body mass index in European children: Longitudinal findings from the Idefics study
Our findings indicate that the association between overweight and psychosocial well-being may be bidirectional but varies by assessment measures. Future research should further investigate which aspects of psychosocial well-being are most likely to precede overweight and which are more likely to be consequences of overweight
Pester power and its consequences: Do European children’s food purchasing requests relate to diet and weight outcomes
Objective Children may influence household spending through ‘pester power’. The present study examined pestering through parent–child food shopping behaviours in relation to children’s diet and weight status. Design Cross-sectional and prospective analyses drawn from the IDEFICS study, a cohort study of parents and their children. Children’s height and weight were measured and their recent diets were reported by parental proxy based on the Childr…
Associations of reward sensitivity with food consumption, activity pattern, and BMI in children
Validation of the Comprehensive General Parenting Questionnaire and associations with children's eating behavior and BMI
Worldwide trends in body-mass index, underweight, overweight, and obesity from 1975 to 2016: A pooled analysis of 2416 population-based measurement studies in 128·9 million children, adolescents, and …
BACKGROUND: Underweight, overweight, and obesity in childhood and adolescence are associated with adverse health consequences throughout the life-course. Our aim was to estimate worldwide trends in mean body-mass index (BMI) and a comprehensive set of BMI categories that cover underweight to obesity in children and adolescents, and to compare trends with those of adults. METHODS: We pooled 2416 population-based studies with measurements of height…
Chronic Psychosocial Stress and Gut Health in Children: Associations With Calprotectin and Fecal Short-Chain Fatty Acids
OBJECTIVES: The mechanisms underpinning the association between chronic stress and gut health are poorly understood. We aimed to investigate the relationship between bacterial produced short-chain fatty acids, gut barrier function, and stress measures. METHODS: A fecal sample, hair sample, and questionnaire data were collected from 113 Belgian children (8-16 years old). Biological measures of stress included hair cortisol (most proximal 3 cm) and…
Timing of solid food introduction and association with later childhood overweight and obesity: The Idefics study
This study investigated associations between timing of solid food introduction and childhood obesity and explored maternal characteristics influencing early feeding practices. Cross-sectional data from children 2-9 years (n = 10,808; 50.5% boys) residing in 8 European countries of the IDEFICS study (2007-2008) were included. Late solid food introduction (≥7 months of age) was associated with an increased prevalence of later childhood overweight/o…
Prospective associations between dietary patterns and body composition changes in European children: The Idefics study
Objective To describe dietary patterns by applying cluster analysis and to describe the cluster memberships of European children over time and their association with body composition changes. Design The analyses included k -means clustering based on the similarities between the relative frequencies of consumption of forty-three food items and regression models were fitted to assess the association between dietary patterns and body composition cha…
Fat and lean tissue accretion in relation to reward motivation in children
Rising rural body-mass index is the main driver of the global obesity epidemic in adults
Body-mass index (BMI) has increased steadily in most countries in parallel with a rise in the proportion of the population who live in cities 1,2 . This has led to a widely reported view that urbanization is one of the most important drivers of the global rise in obesity 3–6 . Here we use 2,009 population-based studies, with measurements of height and weight in more than 112 million adults, to report national, regional and global trends in mean B…
Measuring nutritional knowledge using Item Response Theory and its validity in European adolescents
Objective To analyse the Nutritional Knowledge Test (NKT) using Item Response Theory (ITR) analysis and to assess the construct validity of the Nutritional Knowledge Scale (NKTS) and its associations with adolescent food group consumption and nutritional biomarkers. Design Cross-sectional study. Setting Multicentre investigation conducted in ten European cities. Participants Adolescents aged 12·5–17·5 years ( n 3215) who completed over 75 % of th…
Relative validation of the adapted Mediterranean Diet Score for Adolescents by comparison with nutritional biomarkers and nutrient and food intakes: The Healthy Lifestyle in Europe by Nutrition in Ado…
Objective: To investigate whether adherence to the adapted Mediterranean Diet Score for Adolescents (MDS_A) and the adapted Mediterranean Diet Quality Index for Adolescents (KIDMED_A) is associated with better food/nutrient intakes and nutritional biomarkers. Design: The Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study is a cross-sectional study aiming to obtain comparable data on a variety of nutritional and health-related …
Emotion-driven impulsiveness but not decision-making ability and cognitive inflexibility predicts weight status in adults
Height and body-mass index trajectories of school-aged children and adolescents from 1985 to 2019 in 200 countries and territories: A pooled analysis of 2181 population-based studies with 65 million p…
BACKGROUND: Comparable global data on health and nutrition of school-aged children and adolescents are scarce. We aimed to estimate age trajectories and time trends in mean height and mean body-mass index (BMI), which measures weight gain beyond what is expected from height gain, for school-aged children and adolescents. METHODS: For this pooled analysis, we used a database of cardiometabolic risk factors collated by the Non-Communicable Disease …
Variations in accelerometry measured physical activity and sedentary time across Europe – harmonized analyses of 47,497 children and adolescents
The Moderating Role of Emotion Regulation in the Association Between Stressors With Psychological and Biological Measures in Adolescence
OBJECTIVE: This study explored the role of emotion regulation (ER) as a moderator in the stressor-adjustment outcome relationship while identifying the relevant stressors. METHODS: In 214 adolescents (10-18 years; 51.4% boys), stressors (parent and peer relations, negative events), psychological outcomes (adolescent perceived stress, psychopathology symptoms, negative affect), and biological measures related to the stress response (hair cortisol …
Cross-Sectional and Longitudinal Associations Between Psychosocial Well-Being and Cardiometabolic Markers in European Children and Adolescents
OBJECTIVE: Research examining aspects of positive mental health as potential predictors of cardiometabolic health in young populations is scarce. We investigated the associations between psychosocial well-being and waist circumference (WAIST), blood pressure (BP), the homeostasis model assessment for insulin resistance, triglycerides, and high-density lipoprotein cholesterol considering life-style factors as mediators. METHODS: Data of European c…
Worldwide trends in hypertension prevalence and progress in treatment and control from 1990 to 2019: A pooled analysis of 1201 population-representative studies with 104 million participants
BACKGROUND: Hypertension can be detected at the primary health-care level and low-cost treatments can effectively control hypertension. We aimed to measure the prevalence of hypertension and progress in its detection, treatment, and control from 1990 to 2019 for 200 countries and territories. METHODS: We used data from 1990 to 2019 on people aged 30-79 years from population-representative studies with measurement of blood pressure and data on blo…
Is there stress eating in children and adolescents? A first validation of the Dutch version of the Salzburg Stress Eating Scale
Medicine (32 works) · Obesity, Physical Activity, Diet (23 works) · Psychology (19 works) · Internal Medicine (18 works) · Demography (15 works) · Environmental health (14 works) · Body mass index (12 works) · Obesity (12 works) · Developmental psychology (11 works) · Clinical Psychology (8 works)