Olivier Galy

Olivier Galy
University of New Caledonia | UNC · Interdisciplinary Laboratory for Research in Education, EA 7483, University of New Caledonia, Noumea

PhD - HDR
Scientific co-coordinator of "Family Farming Lifestyle and Health in the Pacific" project, RISE MSCA-Actions H2020

About

99
Publications
28,992
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Introduction
I'm Ass/Prof, head of the L.I.R.E Lab at the University of New Caledonia and scientific co-coordinator of the EU project “Family farming, Lifestyle and Health in the Pacific”. My expertise is in the area of exercise physiology, with a focus on understanding the impact on health outcomes of human activity (exercise, physical activity, inactivity, sleep) associated with individual and socio-environmental lifestyle factors.
Additional affiliations
January 2015 - November 2015
University of New Caledonia
Position
  • Professor (Associate)
January 2015 - May 2016
University of New Caledonia
Position
  • Professor (Associate)
September 2009 - February 2015
University of New Caledonia
Position
  • Professor (Associate)
Education
May 2009
UFR STAPS ANTILLES GUYANE
Field of study
  • Aerobic performance & tropical climate

Publications

Publications (99)
Article
Full-text available
Purpose: To investigate differences in athletes' knowledge, beliefs, and training practices during COVID-19 lockdowns with reference to sport classification and sex. This work extends an initial descriptive evaluation focusing on athlete classification. Methods: Athletes (12,526; 66% male; 142 countries) completed an online survey (May-July 2020...
Article
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Background: Participation in sport and physical activity (PA) leads to better overall health, increased life expectancy, and decreased mortality rates across the lifespan; however, there may be a range of individual, family, and community factors that influence PA participation among ONENA children and adolescents residing in the 22 Pacific Island...
Article
Obesity is a global health concern associated with various demographic and lifestyle factors including physical activity (PA). Research studies generally used self-reported PA data or, when accelerometer-based activity trackers were used, highly aggregated data (e.g. daily average). This suggests that the rich potential of detailed activity tracker...
Chapter
Full-text available
Rapid containment strategies help prevent COVID-19 spread - Pacific region case
Article
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Objectives: Explore training-related knowledge, beliefs and practices of athletes and the influence of COVID-19-related lockdowns. Methods: Athletes [n = 12,526 classified: world-class (13%), international (21%), national (36%), state (24%), and recreational (6%)] completed an online survey (50 d; 17th May to 5th July 2020) exploring their trainin...
Preprint
iEngage© is a modular health education and behavioural change program designed to provide adolescents with knowledge and practical skills and to help them moderate to vigorous physical activity (MVPA). Key features of the program include the iEngage© app which integrates learning modules with activity trackers data (Misfit Ray©), evidence-based hea...
Preprint
Full-text available
iEngage is a modular health education and behavioural change program designed to help adolescents increase moderate to vigorous physical activity (MVPA). The program is delivered through the iEngage app which integrates activity trackers data (Misfit Ray © ) within 10 interactive learning modules. Key features include guidance to set goals, self-mo...
Article
In the Melanesian culture, traditional activities are organized around family farming, although the lifestyle transition taking place over the last several decades has led to imbalances in diet and physical activity, with both leading to obesity. The aim of this interdisciplinary study was to understand the links between family farming (produced, e...
Article
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The Olympic distance triathlon includes maximal exercise bouts with transitions between the activities. This study investigated the effect of an Olympic distance triathlon (1.5-km swim, 40-km bike, 10-km run) on pulmonary diffusion capacity (DLCO). In nine male triathletes (age: 24 ± 4.7 years), we measured DLCO and calculated the DLCO to alveolar...
Preprint
In the Melanesian culture, traditional activities are organized around family farming, although the lifestyle transition taking place over the last several decades has led to imbalances in diet and physical activity, with both leading to obesity. The aim of this interdisciplinary study was to understand the links between family farming (produced, e...
Article
Full-text available
Physical activity (PA) is an important factor for the prevention of overweight and obesity, particularly during adolescence. This study focuses on the understudied adolescent population of New Caledonia with the aim to (1) determine the daily PA levels and estimate the sedentary time through out-of-school sitting time; (2) highlight the influence o...
Article
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Background Self-esteem has consistently been observed to be relatively low in adolescents with obesity. In the Pacific region, the prevalence of obesity in adolescence is high, but few studies have considered issues of self-esteem in this population. Objective To examine associations between weight status, body dissatisfaction and self-esteem in a...
Article
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The food environment in New Caledonia is undergoing a transition, with movement away from traditional diets towards processed and discretionary foods and beverages. This study aimed to develop an up-to-date food composition database that could be used to analyze food and nutritional intake data of New Caledonian children and adults. Development of...
Article
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In recent decades, the food cultures of the Pacific populations have undergone a profound transition, particularly because the increasing trade exchanges with Western countries have facilitated access to a wide range of processed foods. Essentially, a new normative model of eating is now taking the place of the traditional models. The aims of this...
Article
Full-text available
To evaluate the impact of Health interventions promoting physical activity, researchers typically conduct pre- and post-assessments using accelerometers. While aggregated metrics such as daily counts, daily steps and time spent at various intensity levels are commonly used, very few studies exploit the richness of the data often collected with a ve...
Article
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PDF BACKGROUND: Increase or decrease in lung volumes has been reported following short bouts of high-intensity exercise, and prolonged, moderate intensity exercise, and attributable to the decrease on respiratory muscle strength and endurance. This study investigated whether a change in initial lung volume influences the decrease in respiratory mus...
Article
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Background A high prevalence of overweight and obesity has been found in adolescents of New Caledonia and other Pacific Island Countries and Territories. Although Westernization may contribute to the weight gain in populations of Oceanian, Non-European, Non-Asian ancestry (ONENA), little is known about the sociodemographic and lifestyle factors ass...
Article
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High-intensity exercise, marathons, and long distances triathlons have been shown to induce the fatigue of respiratory muscles (RMs). Never-theless, fatigue and the recovery period have not been studied in re-sponse of an Olympic distance triathlon (1.5-km swim, 40-km bike, 10-km run: short-distance triathlon). The aim of this study was to evaluate...
Article
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Background: Food consumption, sleep duration and overweight were assessed in rural and urban Melanesian adolescents. Methods: A cross-sectional survey of 312 rural and 104 urban adolescents (11-16 years old) was conducted. Food intakes were assessed by a 26-item food frequency questionnaire and then categorised into the number of serves from eac...
Article
Background: Contributions from the cognitive neurosciences encourage the development of innovative tools in learning. Through an innovative intervention program called NeuroStratE, we conducted a study to analyze the impact of brain knowledge, with metacognitive approach, on the academic performance of students. This analysis concerns a cohort of...
Book
https://theconversation.com/comprendre-la-pandemie-de-surpoids-et-dobesite-qui-touche-le-pacifique-insulaire-lexemple-de-la-nouvelle-caledonie-145907 Cet article est publié dans le cadre de la Fête de la science 2020 (du 2 au 12 octobre 2020 en métropole et du 6 au 16 novembre en Corse, en outre-mer et à l’international) dont The Conversation Fran...
Article
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Background: The prevalence of overweight and obesity in children and adolescents has dramatically increased in the Pacific Island countries and territories over the last decade. Childhood overweight and obesity not only have short-term consequences but are also likely to lead to noncommunicable diseases in adulthood. A major factor contributing to...
Poster
Full-text available
Objectives: In recent decades, food cultures of the Pacific populations have undergone a sharp transition, particularly caused by the fact that trade exchanges with western countries facilitate access to a wide range of processed foods. This already has a major incidence on chronic diseases in the next decades since today 35% of 11-16 years old New...
Article
Objectives: The first aim was to examine New Caledonian adolescents' views of what constitutes an overweight or underweight person. The second aim was to assess whether an environment with a high prevalence of overweight is associated with different norms of overweight or underweight in this population. Methods: The Stunkard Figure Rating Scale...
Preprint
BACKGROUND The prevalence of overweight and obesity in children and adolescents has dramatically increased in the Pacific region over the last decade. Childhood overweight and obesity are likely to lead to noncommunicable diseases (NCDs) in adulthood. A major contributing factor to the rising prevalence is the insufficient amount of daily moderate...
Article
Full-text available
Background: The prevalence of overweight and obesity in children and adolescents has dramatically increased in the Pacific Island countries and territories over the last decade. Childhood overweight and obesity not only have short-term consequences but are also likely to lead to noncommunicable diseases in adulthood. A major factor contributing to...
Article
Full-text available
Objective Energy drinks are very popular among teenagers but may cause health problems. Energy drink consumption is partly associated with energy drink perception, but little is known about this in the Pacific Island Countries and Territories. The aim of this cross-sectional study was to identify the relationships between energy drink consumption,...
Data
Dataset used in this study. (XLSX)
Article
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This cross-sectional study assessed sugar-sweetened beverage (SSB) consumption and its associations with the sociodemographic and physical characteristics, behavior and knowledge of New Caledonian adolescents. The survey data of 447 adolescents from ages 11 to 16 years were collected in five secondary public schools of New Caledonia between July 20...
Article
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The Pacific Islands are experiencing an obesity epidemic with a rate of overweight and obesity as high as 80% among adults in some Pacific Island nations. Children and adolescents in the region are also affected by overweight and obesity, which is alarming due to the increased likelihood of remaining overweight as an adult. Research supports an ass...
Chapter
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80% of Australian children do not engage in recommended minima of physical activity levels, contributing to an alarming trend in obesity levels and associated diseases in adult life. We created iEngage, an innovative health education program for 10–12 year old school children that blends a learning app, wearable technology, feedback, goal setting a...
Article
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Comment un travail interdisciplinaire qui s’appuie, entre autres, sur des situations complexes peut aider les élèves à reprendre confiance en eux, à se remotiver dans des situations originales et à progresser ? http://www.cahiers-pedagogiques.com/No-541-Les-taches-complexes-a-la-loupe
Article
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Introduction: Waist-to-height ratio (WHtR) is a simple anthropometric proxy for central body fat; it is easy to use from a health education perspective. A WHtR value >0.5 has been proposed as a first level indicator of health risk. The first aim of this study was to compare WHtR with values based on body mass index (BMI) in their prediction of the...
Article
Comment un travail interdisciplinaire qui s’appuie, entre autres, sur des situations complexes peut aider les élèves à reprendre confiance en eux, à se remotiver dans des situations originales et à progresser ?
Article
Objective(s): The prevalence of adolescent obesity is high among the various ethnic groups native to the Pacific region (European, Melanesian and Polynesian). An important factor of weight gain or loss is body size satisfaction; however, little is known about adolescent body self-perception in the Pacific region. Design: Body dissatisfaction was...
Article
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We evaluated anthropometric characteristics and physical fitness in 556 Melanesian adolescents from rural and urban New Caledonia to build health education programs focused on physical activity. In 2013, body weight, height, skinfold thickness, lean body mass (LBM), percentage fat body mass (%FBM), physical fitness (power, agility, speed, maximal a...
Article
We examined the accuracy of self-reported weight and height in New Caledonian school-going adolescents. Self-reported and measured height and weight data were collected from 665 adolescents of New Caledonia and were then compared. Multivariable logistic regressions identified the factors associated with inaccurate self-reports. Sensitivity and spec...
Article
Background: Body mass index is the most often used indicator of obesity but does not distinguish between lean and fat mass. Adiposity at the same body mass index differs across ethnic groups. Objectives: The twofold aim of this study was to determine whether body mass index (BMI)-based references are correlated with body fat percentage (%BF) in...
Article
Objectives: New Caledonia is a multi-ethnic French territory in the Pacific, characterized by communities with widely varying nutritional habits. Little is currently known about adolescent food behaviors and habits and their association with overweight. This study therefore determined the sociodemographic factors and food behaviors associated with...
Article
Full-text available
Background Adolescent obesity is prevalent in Pacific region ethnic groups (European, Melanesian and Polynesian) living in both urban and rural areas. Although body perception is an important factor of weight gain or loss, little is known about the body self-perceptions of Pacific region adolescents. This study therefore evaluated adolescent percep...
Article
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Background : Strategies for physical education (PE) classes in tropical climate are nee- ded to optimize health outcomes. We hypothesized that ergonomic strategies using free hydration during PE would positively impact the physical activity and well-being of chil- dren. Methods : Forty-eight 13- to 15-year-old students participated in two randomize...
Article
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Physiological responses (intensity and recovery kinetics) and well-being indices were examined during a 4-day FIFA international tournament. Ten outfield New- Caledonian players (age: 25.5 ± 3.8 yr; height: 170 ± 7 cm; weight: 70.7 ± 8.6 kg) were assessed during the 4 matches. Players’ aerobic and anaerobic capacities were measured before the tourn...
Article
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ABSTRACT: This study assessed the anthropometric and physiological characteristics of elite Melanesian futsal players in order to determine the best performance predictors. Physiological parameters of performance were measured in 14 Melanesian (MEL-G, 24.4±4.4 yrs) and 8 Caucasian (NMEL-G, 22.9±4.9) elite futsal players, using tests of jump-and-rea...
Article
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To study the exercise-induced arterial hypoxaemia (EIAH) kinetics in a world class Ironman triathlete at ventilatory threshold (THvent), we simulated the cycle-run succession (CR, 20 min + 20 min) and a 20-min isolated run (R). Although ‘moderate EIAH’ was noted during CR, the SpO2 kinetics of the isolated R reflected ‘severe EIAH’ from minutes 7 t...
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Growth hormone (GH) may stimulate water loss during exercise by activating sweating. This study investigated GH secretion and water loss during sequential cycling and running, taking postural changes into account. The two exercise segments had similar durations and were performed at the same relative intensity to determine their respective contribu...
Article
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The aim of this study was to measure the heart rate (HR) response of eight elite water polo players during the four 7-min quarters of the game and to check for relationships with the physiological parameters of performance ([Formula: see text]O2max, Th1vent, Th2vent). Each athlete performed a [Formula: see text]O2max treadmill test and played a wat...
Article
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Purpose: Postexercise alveolar-capillary membrane-diffusing capacity (DLco) often decreases in highly trained endurance athletes and seems linked to their training status. To test the hypothesis that training status influences postexercise DLco, 13 male and 2 female triathletes (20.2 ± 4.4 y old, 175.2 ± 6.7 cm tall; weight in a range of 66.6 ± 7....
Article
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We tested whether the silicone swim caps (SC) worn by young swimmers in a tropical climate negatively influence aerobic performance. Nine trained pre- adolescents [11.8 (± 0.8) years] swam randomized 800-m trials (water: 32.9°C, outdoors: shade, 29.2 ± 0.2 °C, 74 ± 0.3 % rh) with a SC or a nude head (NH). Performance times and heart rate (HR) were...
Article
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The authors investigated the anthropometric and physiological characteristics of young Guadeloupian competitive swimmers in relation to swimming performance and compared the abilities of these children with those of the young white swimmers reported in the literature. All 2004 competitive swimmers between 10 and 14 y old (126 children, 61 boys and...
Article
Full-text available
We tested whether the silicone swim caps (SC) worn by young swimmers in a tropical climate negatively influence aerobic performance. Nine trained pre-adolescents [11.8 (± 0.8) years] swam randomized 800-m trials (water: 32.9°C, outdoors: shade, 29.2 ± 0.2 °C, 74 ± 0.3 % rh) with a SC or a nude head (NH). Performance times and heart rate (HR) were m...
Article
The Tropical climate imposes a high level of physiological stress, which could modify the target heart rate in training load prescription, as the recommendations are often determined by maximal oxygen uptake testing in temperature-neutral laboratories. To test this hypothesis, 7 high-level cyclists performed two randomised maximal tests in neutral...
Article
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The objective of the present study was to investigate the effects of static and dynamic stretching alone and in combination on subsequent agility, sprinting, and jump performance. Eight different stretching protocols: (a) static stretch (SS) to point of discomfort (POD); (b) SS less than POD (SS<POD); (c) dynamic stretching (DS); (d) SS POD combine...