Estelle V. Lambert
A5032754292- Obesity, Physical Activity, Diet
- Physical Activity and Health
- Global Public Health Policies and Epidemiology
- Children's Physical and Motor Development
- Diet and metabolism studies
- Urban Transport and Accessibility
- Cardiovascular and exercise physiology
- Nutritional Studies and Diet
- Muscle metabolism and nutrition
- Sports Performance and Training
- Body Composition Measurement Techniques
- Adipose Tissue and Metabolism
- Obesity and Health Practices
- Sleep and related disorders
- Diabetes, Cardiovascular Risks, and Lipoproteins
- Child Nutrition and Water Access
- Nutrition and Health in Aging
- Birth, Development, and Health
- Mobile Health and mHealth Applications
- Adipokines, Inflammation, and Metabolic Diseases
- Bone health and osteoporosis research
- Health and Lifestyle Studies
- School Health and Nursing Education
- Eating Disorders and Behaviors
- Gut microbiota and health
Sports Science Institute of South Africa
2016-2025
University of Cape Town
2016-2025
University of Southern Queensland
2025
National Research Foundation
2023
University of Chicago
2022
Loyola University Chicago
2015-2021
Kwame Nkrumah University of Science and Technology
2015-2021
University of Cambridge
2017-2021
Tilburg University
2021
MRC Epidemiology Unit
2017-2021
Objectives To describe new WHO 2020 guidelines on physical activity and sedentary behaviour. Methods The were developed in accordance with protocols. An expert Guideline Development Group reviewed evidence to assess associations between behaviour for an agreed set of health outcomes population groups. assessment used systematically updated recent relevant systematic reviews; primary reviews addressed additional or subpopulations. Results address children, adolescents, adults, older adults...
Background : Accumulating sufficient moderate to vigorous physical activity is recognized as a key determinant of physical, physiological, developmental, mental, cognitive, and social health among children youth (aged 5–17 y). The Global Matrix 3.0 Report Card grades on was developed achieve better understanding the global variation in child associated supports. Methods Work groups from 49 countries followed harmonized procedures develop their Cards by grading 10 common indicators using best...
Abstract Objectives: To ascertain the anthropometric profile and determinants of obesity in South Africans who participated Demographic Health Survey 1998. Research Methods Procedures: A sample 13,089 men women (age, ≥15 years) were randomly selected then stratified by province urban nonurban areas. Height, weight, mid‐upper arm circumference, waist hip circumference measured. Body mass index (BMI) was used as an indicator obesity, waist/hip ratio (WHR) abdominal obesity. Multivariate...
It is hypothesised that physical activity controlled by a central governor in the brain and human body functions as complex system during exercise. Using feed forward control response to afferent feedback from different physiological systems, extent of skeletal muscle recruitment part continuously altering pacing strategy, with sensation fatigue being conscious interpretation these homoeostatic, mechanisms.
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...
The health effects of daily activity behaviours (physical activity, sedentary time and sleep) are widely studied. While previous research has largely examined in isolation, recent studies have adjusted for multiple behaviours. However, the inclusion all traditional multivariate analyses not been possible due to perfect multicollinearity 24-h budget data. ensuing lack adjustment known on outcome undermines validity study findings. We describe a statistical approach that enables behaviours,...
The Active Healthy Kids Canada (AHKC) Report Card on Physical Activity for Children and Youth has been effective in powering the movement to get kids moving by influencing priorities, policies, practice Canada. AHKC process was replicated 14 additional countries from 5 continents using 9 common indicators (Overall Activity, Organized Sport Participation, Play, Transportation, Sedentary Behavior, Family Peers, School, Community Built Environment, Government Strategies Investments), a...
The primary aim of the International Study Childhood Obesity, Lifestyle and Environment (ISCOLE) was to determine relationships between lifestyle behaviours obesity in a multi-national study children, investigate influence higher-order characteristics such as behavioural settings, physical, social policy environments, on observed within countries. targeted sample included 6000 10-year old children from 12 countries five major geographic regions world (Europe, Africa, Americas, South-East...
The Canadian 24-h movement guidelines were developed with the hope of improving health and future outcomes in children youth. purpose this study was to evaluate adherence 3 recommendations most strongly associated new their relationship adiposity (obesity body mass index z-score) across countries participating International Study Childhood Obesity, Lifestyle Environment (ISCOLE).Cross-sectional results based on 6128 aged 9-11 years from 12 ISCOLE. Sleep duration moderate-to-vigorous physical...
The aim of the present study was to examine regulation exercise intensity in hot environments when is performed at a predetermined, fixed subjective rating perceived exertion (RPE). Eight cyclists cycling trials 15°C (COOL), 25°C (NORM) and 35°C (HOT) (65% humidity throughout), during which they were instructed cycle Borg (RPE) 16, increasing or decreasing their power output order maintain this RPE. Power declined linearly all three rate decline significantly higher HOT than NORM COOL (2.35...
Previously, studies examining correlates of sedentary behavior have been limited by small sample size, restricted geographic area, and little socio-cultural variability. Further, few examined total time (SED) screen (ST) in the same population. This study aimed to investigate SED ST children around world.The included 5,844 (45.6% boys, mean age = 10.4 years) from sites Australia, Brazil, Canada, China, Colombia, Finland, India, Kenya, Portugal, South Africa, United Kingdom, States. Child-...
In July, 2019, the World Health Organization (WHO) commenced work to update 2010 Global Recommendations on Physical Activity for and established a Guideline Development Group (GDG) comprising expert public health scientists practitioners inform drafting of 2020 Guidelines Sedentary Behavior. The overall task GDG was review scientific evidence provide advice WHO amount physical activity sedentary behavior associated with optimal in children adolescents, adults, older adults (> 64 years), also...
The Global Matrix 4.0 on physical activity (PA) for children and adolescents was developed to achieve a comprehensive understanding of the global variation in children's adolescents' (5-17 y) PA, related measures, key sources influence. objectives this article were (1) summarize findings from Report Cards, (2) compare indicators across countries, (3) explore trends Human Development Index geo-cultural regions.A total 57 Card teams followed harmonized process grade 10 common PA indicators. An...
To determine the relationships between moderate-to-vigorous physical activity (MVPA), vigorous (VPA), sedentary time, and obesity in children from 12 countries representing a wide range of human development.The sample included 6539 age 9-11 yr. Times MVPA, VPA, behaviors were assessed by accelerometry. The body mass index (BMI; kg·m) was used to classify as obese based on z-scores (> +2 SD) World Health Organization reference data.The mean (SD) times spent behavior 60 (25) min·d, 18 (11) 513...
We compared 24-hour waist-worn accelerometer wear time characteristics of 9-11 year old children in the International Study Childhood Obesity, Lifestyle and Environment (ISCOLE) to similarly aged U.S. providing waking-hours data 2003-2006 National Health Nutrition Examination Survey (NHANES).Valid cases were defined as having ≥4 days with ≥10 hours waking a period, including one weekend day. Previously published algorithms for extracting total sleep episode from identifying (in both...
The relationship between microbiota, short chain fatty acids (SCFAs), and obesity remains enigmatic. We employ amplicon sequencing targeted metabolomics in a large (n = 1904) African origin cohort from Ghana, South Africa, Jamaica, Seychelles, the US. Microbiota diversity fecal SCFAs are greatest Ghanaians, lowest Americans, representing each end of urbanization spectrum. Obesity is significantly associated with reduction SCFA concentration, microbial diversity, synthesizing bacteria,...