Claude Bouchard
Dados Biográficos
| ID | 77470 |
|---|---|
| NOME | Claude Bouchard |
| PRENOMES | Claude |
| SOBRENOME | Bouchard |
| ASSINATURA | BOUCHARD C |
| AFILIAÇÕES | Université Laval |
| ORCID | 0000-0002-0048-491X |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 48 |
| TOTAL DE CITAÇÕES | 5 |
| TOTAL COMO AUTOR | 48 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1977 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2024 |
| ÍNDICE H | 2 |
Spatial multi-criteria decision analysis for the selection of sentinel regions in tick-borne disease surveillance
This novel application of spatial MCDA to surveillance network design favors inclusivity of nationwide partners. We propose that such an approach can support the standardized planning of spatial design of sentinel surveillance not only for vector-borne disease BDs, but more broadly for infectious disease surveillance where spatial design is an important component
In memoriam
The authors declare no conflict of interest. Data sharing not applicable to this article as no datasets were generated or analysed during the current study
Six-months CrossFit training improves metabolic efficiency in young trained men (Seis meses de CrossFit mejora la eficiencia metabólica en jóvenes entrenados)
The objective was to analyse the effects of 6 months’ CrossFit on physical performance, metabolic efficiency, body composition, and biochemical parameters. Ten trained CrossFit practitioners were assessed before and after CrossFit training. Anthropometric measurements, biochemical parameters and physical performance parameters were assessed with functional and incremental tests. After 6 months of CrossFit, fat oxidation rate and energy percentage…
Genetic studies of body mass index yield new insights for obesity biology
Workplace standing time and the incidence of obesity and type 2 diabetes
Greater occupational standing time is not sufficient in and of itself to prevent the development of OW/OB and IGT/T2D in adults. Future efforts are needed to better understand the potential benefits of higher amounts of standing time throughout the day on the prevention of chronic diseases
Measured maximal heart rates compared to commonly used age‐based prediction equations in the heritage family study
OBJECTIVE: The purpose of this study was to examine how well two commonly used age-based prediction equations for maximal heart rate (HRmax ) estimate the actual HRmax measured in Black and White adults from the HERITAGE Family Study. METHODS: A total of 762 sedentary subjects (39% Black, 57% Females) from HERITAGE were included. HRmax was measured during maximal exercise tests using cycle ergometers. Age-based HRmax was predicted using the Fox (…
Short sleep duration is associated with greater alcohol consumption in adults
Trends over 5 Decades in U.S. Occupation-Related Physical Activity and Their Associations with Obesity
BACKGROUND: The true causes of the obesity epidemic are not well understood and there are few longitudinal population-based data published examining this issue. The objective of this analysis was to examine trends in occupational physical activity during the past 5 decades and explore how these trends relate to concurrent changes in body weight in the U.S. METHODOLOGY/PRINCIPAL FINDINGS: Analysis of energy expenditure for occupations in U.S. priv…
Sitting Time and Mortality from All Causes, Cardiovascular Disease, and Cancer
PURPOSE: Although moderate-to-vigorous physical activity is related to premature mortality, the relationship between sedentary behaviors and mortality has not been fully explored and may represent a different paradigm than that associated with lack of exercise. We prospectively examined sitting time and mortality in a representative sample of 17,013 Canadians 18-90 yr of age. METHODS: Evaluation of daily sitting time (almost none of the time, one…
Pleiotropic QTL on Chromosome 12q23-q24 Influences Triglyceride and High-Density Lipoprotein Cholesterol Levels
To determine whether a common quantitative trait locus (QTL) influences the variation of fasting triglyceride (TG) and high-density lipoprotein cholesterol (HDL-C) levels, we used a bivariate multipoint linkage analysis with 654 polymorphic markers in 99 white and 101 black families. The phenotypes were investigated under two conditions: at baseline and after a 20-week exercise training intervention. A maximum genome-wide bivariate LOD score of 3…
Growth, Maturation, and Physical Activity
The second edition of Growth, Maturation, and Physical Activity has been expanded with almost 300 new pages of material, making it the most comprehensive text on the biological growth, maturation, physical performance, and physical activity of children and adolescents. The new edition retains all the best features of the original text, including the helpful outlines at the beginning of each chapter that allow students to review major concepts. Th…
Modifications in food-group consumption are related to long-term body-weight changes
These results show that changes in the consumption of some specific food groups are associated with body-weight changes. Such specific eating patterns could help to improve obesity treatment and prevention.
Prediction of physical activity and physical work capacity (PWC150) in young adulthood from childhood and adolescence with consideration of parental measures
The 12-year prediction of physical activity level and submaximal aerobic fitness observed during young adulthood was quantified from childhood and parental measures. The sample consisted of 153 children and adolescents of the Quebec Family Study who were evaluated at baseline and reassessed 12 years later, as young adults. Physical work capacity at a heart rate of 150 beats x min(-1) (PWC150) was measured using cycle ergometry. A 3-day activity r…
Familial risk of high blood pressure in the Canadian population
Familial risk ratios for high blood pressure were estimated in a representative sample of the Canadian population. The sample consisted of 14,069 participants 7–69 years of age from 5,753 families participating in the 1981 Canada Fitness Survey. Resting systolic (SBP) and diastolic (DBP) blood pressures were adjusted for the effects of body mass index using regression procedures. Varying degrees of high blood pressure were defined as the 75th, 85…
Familial risk of high blood pressure in the Canadian population
Familial risk ratios for high blood pressure were estimated in a representative sample of the Canadian population. The sample consisted of 14,069 participants 7–69 years of age from 5,753 families participating in the 1981 Canada Fitness Survey. Resting systolic (SBP) and diastolic (DBP) blood pressures were adjusted for the effects of body mass index using regression procedures. Varying degrees of high blood pressure were defined as the 75 th , …
Population differences in the pattern of familial aggregation for sex hormone‐binding globulin and its response to exercise training
Familial influences were investigated for baseline sex hormone-binding globulin (SHBG) and its response (post-training minus baseline) to a 20-week endurance exercise training program. One hundred, eighty-four participants from 85 Black families in the HERITAGE Family Study (HERITAGE) were analyzed using a familial correlation model. Baseline SHBG values and the training response were adjusted for the effects of age, baseline BMI, testosterone, e…
Familial resemblance in fatness and fat distribution
The purpose of the study was to estimate the degree of familial resemblance in anthropometric indicators of fatness and fat distribution. The sample consisted of 327 Caucasian participants from 102 nuclear families. Indicators of fatness included the body mass index (BMI), the sum of six skinfolds (SF6: triceps + biceps + medial calf + subscapular + suprailiac + abdominal), and waist circumference (WAIST), while indicators of fat distribution inc…
Cross-trait familial resemblance for resting blood pressure and body composition and fat distribution
Cross-trait familial resemblance between resting blood pressure (BP) and body composition and fat distribution was examined in 98 Caucasian families participating in the HERITAGE Family Study by using a multivariate familial correlation model assessing both intraindividual and interindividual cross-trait correlations. The 520 family members were sedentary at baseline examination, and both resting systolic (SBP) and diastolic (DBP) BP were cross-a…
Cross‐trait familial resemblance for resting blood pressure and body composition and fat distribution
Major gene effect on subcutaneous fat distribution in a sedentary population and its response to exercise training
Complex segregation analysis of baseline subcutaneous fat distribution and the change in response to exercise training (post-training minus baseline indices) was performed in a sample of 482 individuals from 99 Caucasian families who participated in the HERITAGE Family Study. The sum of skinfold (SF) thicknesses at eight sites, and the waist and hip circumferences were measured at baseline and after completing a 20-week exercise training program.…
Major gene effect on subcutaneous fat distribution in a sedentary population and its response to exercise training
Complex segregation analysis of baseline subcutaneous fat distribution and the change in response to exercise training (post-training minus baseline indices) was performed in a sample of 482 individuals from 99 Caucasian families who participated in the HERITAGE Family Study. The sum of skinfold (SF) thicknesses at eight sites, and the waist and hip circumferences were measured at baseline and after completing a 20-week exercise training program.…
Genetics of abdominal visceral fat levels
The purpose of this review is to explore the evidence accumulated thus far that suggests a genetic component to the observed variation in abdominal visceral fat (AVF) levels. The precise determination of AVF levels in humans is limited to methods such as computerized tomography and magnetic resonance imaging; thus, few studies have examined the role of genetic factors on this phenotype. Evidence from the Québec Family Study (QFS) and the HERITAGE…
Genetics of abdominal visceral fat levels
The purpose of this review is to explore the evidence accumulated thus far that suggests a genetic component to the observed variation in abdominal visceral fat (AVF) levels. The precise determination of AVF levels in humans is limited to methods such as computerized tomography and magnetic resonance imaging; thus, few studies have examined the role of genetic factors on this phenotype. Evidence from the Québec Family Study (QFS) and the HERITAGE…
Somatotype and indicators of metabolic fitness in youth
The relationship between physique and metabolic fitness was examined in a sample of 413 boys and 343 girls 9-18 years of age from Phase I of the Québec Family Study. Physique was assessed using the Heath-Carter anthropometric somatotype. Indicators of metabolic fitness were plasma triglyceride levels (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), and blood glucose levels (GLY). The sample was divi…
Physique and echocardiographic dimensions in children, adolescents and young adults
Relationships between echocardiographic dimensions and the Heath-Carter anthropometric somatotype were considered in healthy, non-obese children (8-11 year olds, n = 143), adolescents (12 15 year olds, n = 216) and young adults (16-24 years, n = 190). Cardiac dimensions, measured by M-mode echocardiography at end-diastole, included left ventricular internal diameter (LVIDd), posterior wall thickness (PWTd), and interventricular posterior wall thi…
Short sleep duration is associated with greater alcohol consumption in adults
Pleiotropic QTL on Chromosome 12q23-q24 Influences Triglyceride and High-Density Lipoprotein Cholesterol Levels
To determine whether a common quantitative trait locus (QTL) influences the variation of fasting triglyceride (TG) and high-density lipoprotein cholesterol (HDL-C) levels, we used a bivariate multipoint linkage analysis with 654 polymorphic markers in 99 white and 101 black families. The phenotypes were investigated under two conditions: at baseline and after a 20-week exercise training intervention. A maximum genome-wide bivariate LOD score of 3…
Table des comptes rendus — ordre alphabétique d’auteurs
Table des comptes rendus — ordre alphabétique d’auteurs. Un article de la revue Revue d'histoire de l'Amérique française (Index des volumes XXI-XXX (juin 1967-mars 1977)) diffusée par la plateforme Érudit
Skeletal age and submaximal working capacity in boys
Skeletal age (SA) and Vo2 at a heart rate of 130 (Vo130) during work on a bicycle ergometer were measured in 237 boys 8-18 years of age. Analysis indicates that Vo130 is well correlated with SA, but also is equally well correlated with chronological age (CA), height and body weight. Age-specific correlations show that Vo130 is associated with SA from 12 through 16 years of age. Partialing out SA results in a significant decrease in the correlatio…
Transient environmental effects detected in sibling correlations
Detection of environmental effects in sibling correlation is difficult. Mueller (1978) has proposed that transient environmental effects should be associated with a decrease in the sibling correlation with increasing age difference between members of a pair of adult sibs. The present report suggests that an environmental effect can also be detected by partialing out environmental indicators from correlations between sibs measured at the same chro…
A method to assess energy expenditure in children and adults
Familial resemblance in fatness indicators
Family resemblance in fatness has been studied in 481 individuals from 114 families of French descent living in the greater Quebec city area. Subjects were measured for the following fatness indicators: triceps, biceps, subscapular, suprailiac, abdominal and medial calf skinfolds. The sum of these six skinfolds as well as a prediction of percent body fat (Durnin and Rahaman 1967) were also considered. Data were standardized for appropriate age an…
Reply to letter by Torun
Submaximal power output in adopted and biological siblings
Submaximal power output was determined in relative steady state on a bicycle ergometer at a heart rate of 150 beats per minute (PWC150). PWC150 was measured in 880 individuals, 9 to 26 years of age, belonging to 46 sibships of adopted sibs, 66 sibships of unrelated individuals including adoptees, 33 sibships of first-degree cousins, 225 sibships of biological sibs, 56 sibships of DZ twins and 54 sibships of MZ twins. PWC150, PWC150/kg of body wei…
Genetic and environmental sources of variation in physical fitness
The technique of path analysis was used to assess inherited and environmental variance components in physical fitness indicators measured in 1630 subjects from 375 families of French descent living in the greater Québec city area. For that purpose, submaximal power output (PWC150/kg), muscular endurance, muscular strength, reaction time and movement time were evaluated during a visit of the family to the laboratory. Inter-class correlations in va…
Response from Himes and Bouchard
Response from Himes and Bouchard J. H. Himes, and C. Bouchard CopyRight https://doi.org/10.2105/AJPH.77.1.94-a Published Online: October 07, 2011
Human Growth
Infrastructures are material forms that allow for the possibility of exchange over space. They are the physical networks through which goods, ideas, waste, power, people, and finance are trafficked. In this article I trace the range of anthropological ...Read More
Cohabitation, activity level, and energy intake in parent‐child resemblance for selected biological traits
Activity level and energy intake were estimated from 3-day records, including a weekend day, in parents and children from families of French descent. Subcutaneous fat from the summation of six skinfolds, fasting serum triglycerides, total and high-density lipoprotein cholesterol, and submaximal power output (PWC 150 ) derived from a cycle ergometer test also were determined in these subjects. Dependent variables were normalized through log 10 or …
Genetics of human obesity
Heterogeneity among populations for familial aggregation of blood pressure
A simple model of familial aggregation was applied to age–sex corrected systolic (SBP) and diastolic (DBP) blood pressure data from two separate studies: The Québec Family Study and the Tecumseh Community Health Study. Examination of the familial correlations suggested heterogeneity across studies in all DBP correlations, but for SBP only spouse correlations were higher in Québec. Fitting the path model to the data revealed that the only source o…
Genes and body fat
This paper reviews recent data concerning the role of inherited differences in body fat content. The heritability of percent body fat or fat mass reaches about 25% of the age and gender adjusted phenotypic variance. One study has reported a significant major gene effect accounting for almost one half of the variance in body fat content. Experimental overfeeding studies suggest that body weight and fat gains are influenced by undefined genetic cha…
Familial resemblance in somatotype
Parent‐child, sibling, and spouse similarities in Health‐Carter somatotype components are considered in 938 individuals from 243 nuclear families of French Canadian ancestry. Familial correlations were considered for each somatotype component, after adjusting for age, gender, and the other somatotype components. Correlations were also calculated with and without adjustment for energy intake (EI) and physical activity level (AL). AL and EI were es…
Waist circumference and abdominal sagittal diameter
Relationships of physical fitness, fatness, and lifestyle indicators with blood iron in children and adults
The associations between physical fitness, fatness, activity level, dietary intake and smoking, with indicators of blood iron status are considered in 1,216 children and adults of the Quebec Family Study, 612 males and 604 females, classified into six age groups: 10–14, 15–19, 35–39, 40–44, 45–49, and 50–54 years. Physical fitness was determined as power output at a heart rate of 150 beats per min on a cycle ergometer (PWC 150 ) and as strength o…
Familial aggregation of subcutaneous fat patterning
Familial resemblance was examined for each of the principal components arising from an analysis of six skinfolds (triceps, biceps, subscapular, abdominal, suprailiac, and medial calf) measured in 1,237 participants of the Québec Family Study. Most of the phenotypic variance among the skinfolds (83%) was accounted for by the first two principal components. Examination of the skinfold loadings on each principal component, as well as intraindividual…
Familial aggregation of subcutaneous fat patterning
Race differences in reproducibilities
The HERITAGE (HEalth, RIsk factors, exercise Training And GEnetics) Family Study is a multicenter clinical trial conducted by five institutions in the United States and Canada. The overall objective of the study is to investigate the role of the genotype in cardiovascular, metabolic, and hormonal responses to aerobic exercise training and the contribution of regular exercise to changes in cardiovascular disease and diabetes risk factors in white …
Somatotype and cardiovascular risk factors in healthy adults
Relationships between cardiovascular risk factors and Heath-Carter anthropometric somatotype components were considered in 642 healthy adults free from overt disease: 68 males and 177 females, 30–39 years, and 233 males and 224 females, 40–49 years of age. Risk factors included systolic and diastolic blood pressures (SBP, DBP), fasting glycemia (GLYC), triglycerides (TG), plasma cholesterol (CHOL), the high density lipoprotein cholesterol fractio…
Principal components analysis of morphological measures in the Québec family study
Principal components analysis was carried out on 13 morphological dimensions collected in the first phase of the Québec Family Study (weight, height, fat mass (FM), fat-free mass (FFM), body surface area, six skinfolds, arm and calf girths). The first four principal components (PCs) account for 85.9% of the total phenotypic variance in the anthropometric dimensions. The first PC has almost equal loadings on the 13 variables, indicating its role a…
Somatotype and cardiovascular risk factors in healthy adults
Relationships between cardiovascular risk factors and Heath-Carter anthropometric somatotype components were considered in 642 healthy adults free from overt disease: 68 males and 177 females, 30-39 years, and 233 males and 224 females, 40-49 years of age. Risk factors included systolic and diastolic blood pressures (SBP, DBP), fasting glycemia (GLYC), triglycerides (TG), plasma cholesterol (CHOL), the high density lipoprotein cholesterol fractio…
Somatotype and indicators of metabolic fitness in youth
The relationship between physique and metabolic fitness was examined in a sample of 413 boys and 343 girls 9-18 years of age from Phase I of the Québec Family Study. Physique was assessed using the Heath-Carter anthropometric somatotype. Indicators of metabolic fitness were plasma triglyceride levels (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), and blood glucose levels (GLY). The sample was divi…
Physique and echocardiographic dimensions in children, adolescents and young adults
Relationships between echocardiographic dimensions and the Heath-Carter anthropometric somatotype were considered in healthy, non-obese children (8-11 year olds, n = 143), adolescents (12 15 year olds, n = 216) and young adults (16-24 years, n = 190). Cardiac dimensions, measured by M-mode echocardiography at end-diastole, included left ventricular internal diameter (LVIDd), posterior wall thickness (PWTd), and interventricular posterior wall thi…
Medicine (36 obras) · Demography (29 obras) · Biology (21 obras) · Internal Medicine (16 obras) · Internal Medicine (14 obras) · Obesity, Physical Activity, Diet (14 obras) · Body mass index (13 obras) · Mathematics (13 obras) · Anthropometry (11 obras) · Population (11 obras)