Author: John David Sluyter
Publisher:
ISBN:
Category : Lifestyles
Languages : en
Pages : 266
Book Description
Obesity prevalence among Pacific Island adolescents is high and is a major health concern. In view of this, obesity interventions targeted at this group are urgently required. However, evidence of suitable intervention strategies for this population is lacking. In addition, it is not clear how well measures of obesity that can be used in the field setting quantify fatness in South Pacific youth. To address these gaps of knowledge in the literature, this thesis aimed to examine the association between lifestyle risk factors of obesity and body composition variables in this population (Obesity Prevention In Communities (OPIC) study). To assist this objective, a second aim of this thesis was to examine the relationship between fatness estimated by field methods (anthropometric and bioimpedance analysis (BIA) variables) and measured by an accepted reference method in South Pacific youth (validation study). In the validation study, 432 adolescents (Pacific Island, Maori, Asian and European) were purposively selected from high schools in Auckland. Anthropometric variables were measured, impedance variables were measured on an 8-electrode BIA (BIA8) device (Tanita BC-418; Tanita, Tokyo, Japan) and body composition variables were measured by dual-energy X-ray absorptiometry (DXA). In the OPIC study, data were collected from >17,000 students from 4 countries (New Zealand (NZ), Australia, Fiji and Tonga) and 8 ethnic groups (NZ Pacific Island, NZ Maori, NZ Asian, NZ European, Indigenous Fijian, Fijian Indian and Tongan), which comprised information on demographic, lifestyle and body composition variables. Results from the validation study showed that, compared to Europeans, for the same body mass index (BMI), Asian Indians had more percent body fat (%BF), while Maori and Pacific Islanders had less %BF. In boys, readily measured variables, waist circumference/height and conicity index, had notable effects on the %BF ethnic differences. Other factors that contributed to these differences in boys and girls were variation in muscularity, bone mass, fat distribution and relative leg length. BIA8 estimated DXA-measured total fat mass (TFM), %BF and fat-free mass with significant bias. BIAbased prediction equations developed in the sample performed better than reliance on the manufacturer's equations and these equations depended upon ethnicity. For the same waist circumference (WC), compared to Europeans and Maori, Asians had more percent abdominal fat (%AbFM) and Pacific Islanders had less %AbFM. Adjustment for trunk impedance (ZTr) removed or reduced these %AbFM differences. In fact, at a given WC, ethnic differences in ZTr mirrored variation in %AbFM across ethnic groups. OPIC analyses revealed that Pacific Islanders had markedly higher fatness levels than other groups, including when %BF, TFM and %AbFM were used as fatness measures. Among all ethnic groups combined, TV watching was positively related to fatness in a dose-dependent manner. Overall effects showed strong, dose-dependent associations between fatness and soft drink consumption (positive relationship), breakfast consumption (inverse relationship) and after-school physical activity (inverse relationship). Differences in lifestyle obesity risk factors were associated with percentage differences in body composition variables that were greatest for TFM, followed by %BF and then BMI. This thesis supports the view that TV watching, soft drink consumption, breakfast consumption and physical inactivity contribute to increased obesity prevalence among Pacific Island youth. Body composition (DXA-measured fatness) notably varies at a given body size. Consistent with this, and an original finding, is that lifestyle factors are most strongly related to TFM and %BF, suggesting that obesity interventions and studies that use only BMI to quantify fatness may underestimate the "true" effect of lifestyle on adiposity.
Lifestyle and Body Composition in Adolescents in the South Pacific
Author: John David Sluyter
Publisher:
ISBN:
Category : Lifestyles
Languages : en
Pages : 266
Book Description
Obesity prevalence among Pacific Island adolescents is high and is a major health concern. In view of this, obesity interventions targeted at this group are urgently required. However, evidence of suitable intervention strategies for this population is lacking. In addition, it is not clear how well measures of obesity that can be used in the field setting quantify fatness in South Pacific youth. To address these gaps of knowledge in the literature, this thesis aimed to examine the association between lifestyle risk factors of obesity and body composition variables in this population (Obesity Prevention In Communities (OPIC) study). To assist this objective, a second aim of this thesis was to examine the relationship between fatness estimated by field methods (anthropometric and bioimpedance analysis (BIA) variables) and measured by an accepted reference method in South Pacific youth (validation study). In the validation study, 432 adolescents (Pacific Island, Maori, Asian and European) were purposively selected from high schools in Auckland. Anthropometric variables were measured, impedance variables were measured on an 8-electrode BIA (BIA8) device (Tanita BC-418; Tanita, Tokyo, Japan) and body composition variables were measured by dual-energy X-ray absorptiometry (DXA). In the OPIC study, data were collected from >17,000 students from 4 countries (New Zealand (NZ), Australia, Fiji and Tonga) and 8 ethnic groups (NZ Pacific Island, NZ Maori, NZ Asian, NZ European, Indigenous Fijian, Fijian Indian and Tongan), which comprised information on demographic, lifestyle and body composition variables. Results from the validation study showed that, compared to Europeans, for the same body mass index (BMI), Asian Indians had more percent body fat (%BF), while Maori and Pacific Islanders had less %BF. In boys, readily measured variables, waist circumference/height and conicity index, had notable effects on the %BF ethnic differences. Other factors that contributed to these differences in boys and girls were variation in muscularity, bone mass, fat distribution and relative leg length. BIA8 estimated DXA-measured total fat mass (TFM), %BF and fat-free mass with significant bias. BIAbased prediction equations developed in the sample performed better than reliance on the manufacturer's equations and these equations depended upon ethnicity. For the same waist circumference (WC), compared to Europeans and Maori, Asians had more percent abdominal fat (%AbFM) and Pacific Islanders had less %AbFM. Adjustment for trunk impedance (ZTr) removed or reduced these %AbFM differences. In fact, at a given WC, ethnic differences in ZTr mirrored variation in %AbFM across ethnic groups. OPIC analyses revealed that Pacific Islanders had markedly higher fatness levels than other groups, including when %BF, TFM and %AbFM were used as fatness measures. Among all ethnic groups combined, TV watching was positively related to fatness in a dose-dependent manner. Overall effects showed strong, dose-dependent associations between fatness and soft drink consumption (positive relationship), breakfast consumption (inverse relationship) and after-school physical activity (inverse relationship). Differences in lifestyle obesity risk factors were associated with percentage differences in body composition variables that were greatest for TFM, followed by %BF and then BMI. This thesis supports the view that TV watching, soft drink consumption, breakfast consumption and physical inactivity contribute to increased obesity prevalence among Pacific Island youth. Body composition (DXA-measured fatness) notably varies at a given body size. Consistent with this, and an original finding, is that lifestyle factors are most strongly related to TFM and %BF, suggesting that obesity interventions and studies that use only BMI to quantify fatness may underestimate the "true" effect of lifestyle on adiposity.
Publisher:
ISBN:
Category : Lifestyles
Languages : en
Pages : 266
Book Description
Obesity prevalence among Pacific Island adolescents is high and is a major health concern. In view of this, obesity interventions targeted at this group are urgently required. However, evidence of suitable intervention strategies for this population is lacking. In addition, it is not clear how well measures of obesity that can be used in the field setting quantify fatness in South Pacific youth. To address these gaps of knowledge in the literature, this thesis aimed to examine the association between lifestyle risk factors of obesity and body composition variables in this population (Obesity Prevention In Communities (OPIC) study). To assist this objective, a second aim of this thesis was to examine the relationship between fatness estimated by field methods (anthropometric and bioimpedance analysis (BIA) variables) and measured by an accepted reference method in South Pacific youth (validation study). In the validation study, 432 adolescents (Pacific Island, Maori, Asian and European) were purposively selected from high schools in Auckland. Anthropometric variables were measured, impedance variables were measured on an 8-electrode BIA (BIA8) device (Tanita BC-418; Tanita, Tokyo, Japan) and body composition variables were measured by dual-energy X-ray absorptiometry (DXA). In the OPIC study, data were collected from >17,000 students from 4 countries (New Zealand (NZ), Australia, Fiji and Tonga) and 8 ethnic groups (NZ Pacific Island, NZ Maori, NZ Asian, NZ European, Indigenous Fijian, Fijian Indian and Tongan), which comprised information on demographic, lifestyle and body composition variables. Results from the validation study showed that, compared to Europeans, for the same body mass index (BMI), Asian Indians had more percent body fat (%BF), while Maori and Pacific Islanders had less %BF. In boys, readily measured variables, waist circumference/height and conicity index, had notable effects on the %BF ethnic differences. Other factors that contributed to these differences in boys and girls were variation in muscularity, bone mass, fat distribution and relative leg length. BIA8 estimated DXA-measured total fat mass (TFM), %BF and fat-free mass with significant bias. BIAbased prediction equations developed in the sample performed better than reliance on the manufacturer's equations and these equations depended upon ethnicity. For the same waist circumference (WC), compared to Europeans and Maori, Asians had more percent abdominal fat (%AbFM) and Pacific Islanders had less %AbFM. Adjustment for trunk impedance (ZTr) removed or reduced these %AbFM differences. In fact, at a given WC, ethnic differences in ZTr mirrored variation in %AbFM across ethnic groups. OPIC analyses revealed that Pacific Islanders had markedly higher fatness levels than other groups, including when %BF, TFM and %AbFM were used as fatness measures. Among all ethnic groups combined, TV watching was positively related to fatness in a dose-dependent manner. Overall effects showed strong, dose-dependent associations between fatness and soft drink consumption (positive relationship), breakfast consumption (inverse relationship) and after-school physical activity (inverse relationship). Differences in lifestyle obesity risk factors were associated with percentage differences in body composition variables that were greatest for TFM, followed by %BF and then BMI. This thesis supports the view that TV watching, soft drink consumption, breakfast consumption and physical inactivity contribute to increased obesity prevalence among Pacific Island youth. Body composition (DXA-measured fatness) notably varies at a given body size. Consistent with this, and an original finding, is that lifestyle factors are most strongly related to TFM and %BF, suggesting that obesity interventions and studies that use only BMI to quantify fatness may underestimate the "true" effect of lifestyle on adiposity.
Lifestyle and Obesity in South Pacific Youth
Author: Jennifer Utter
Publisher:
ISBN: 9780473141936
Category : Obesity in adolescence
Languages : en
Pages : 40
Book Description
Publisher:
ISBN: 9780473141936
Category : Obesity in adolescence
Languages : en
Pages : 40
Book Description
Modern Lifestyle and Health: How Changes in the Environment Impacts Immune Function and Physiology
Author: Laurence Macia
Publisher: Frontiers Media SA
ISBN: 288974146X
Category : Science
Languages : en
Pages : 152
Book Description
Publisher: Frontiers Media SA
ISBN: 288974146X
Category : Science
Languages : en
Pages : 152
Book Description
Handbook of Anthropometry
Author: Victor R. Preedy
Publisher: Springer Science & Business Media
ISBN: 144191787X
Category : Family & Relationships
Languages : en
Pages : 3039
Book Description
Anthropometry is the physical measurement of linear growth and body composition. In this handbook all facets and features of anthropometry are described. Each chapter includes applications to other areas of health and disease.
Publisher: Springer Science & Business Media
ISBN: 144191787X
Category : Family & Relationships
Languages : en
Pages : 3039
Book Description
Anthropometry is the physical measurement of linear growth and body composition. In this handbook all facets and features of anthropometry are described. Each chapter includes applications to other areas of health and disease.
Disease Control Priorities, Third Edition (Volume 8)
Author: Donald A. P. Bundy
Publisher: World Bank Publications
ISBN: 1464804397
Category : Medical
Languages : en
Pages : 977
Book Description
More children born today will survive to adulthood than at any time in history. It is now time to emphasize health and development in middle childhood and adolescence--developmental phases that are critical to health in adulthood and the next generation. Child and Adolescent Health and Development explores the benefits that accrue from sustained and targeted interventions across the first two decades of life. The volume outlines the investment case for effective, costed, and scalable interventions for low-resource settings, emphasizing the cross-sectoral role of education. This evidence base can guide policy makers in prioritizing actions to promote survival, health, cognition, and physical growth throughout childhood and adolescence.
Publisher: World Bank Publications
ISBN: 1464804397
Category : Medical
Languages : en
Pages : 977
Book Description
More children born today will survive to adulthood than at any time in history. It is now time to emphasize health and development in middle childhood and adolescence--developmental phases that are critical to health in adulthood and the next generation. Child and Adolescent Health and Development explores the benefits that accrue from sustained and targeted interventions across the first two decades of life. The volume outlines the investment case for effective, costed, and scalable interventions for low-resource settings, emphasizing the cross-sectoral role of education. This evidence base can guide policy makers in prioritizing actions to promote survival, health, cognition, and physical growth throughout childhood and adolescence.
5 a Day for Better Health Program
Waisted: The Biology of Body Fat
Author: Nathan Denton
Publisher: Oxford University Press
ISBN: 0192634577
Category : Medical
Languages : en
Pages : 305
Book Description
Waisted: The Biology of Body Fat outlines the fascinating, often misunderstood and sometimes controversial biology of fat, otherwise known as adipose tissue. It provides a comprehensive, evidence-based perspective on fat biology and its crucial role in human evolution, health, disease, and society. The content draws upon biomedical, epidemiological, social and evolutionary research to understand the striking relationship between body fat distribution and health outcomes. Using digestible analogies, real-world examples and images, it highlights the multi-faceted relationship between adipose biology and society. Waisted clearly conveys the key concepts and assumptions that can lead to negative perceptions of fat, and reframes these challenges to highlight the underappreciated importance of adipose tissue in humans. Waisted is an accessible yet in-depth exploration of the subject that is suitable for both specialists and non-specialists alike. It is a highly valuable resource for clinicians, health practitioners, biomedical researchers, and students who study adipose biology, obesity, and diseases related to fat dysfunction. This book also provides an interesting sociological and anthropological read for anyone who wants to gain a broader and deeper appreciation of the unique role that adipose tissue plays in human evolution and society, by considering how biological and social factors intersect.
Publisher: Oxford University Press
ISBN: 0192634577
Category : Medical
Languages : en
Pages : 305
Book Description
Waisted: The Biology of Body Fat outlines the fascinating, often misunderstood and sometimes controversial biology of fat, otherwise known as adipose tissue. It provides a comprehensive, evidence-based perspective on fat biology and its crucial role in human evolution, health, disease, and society. The content draws upon biomedical, epidemiological, social and evolutionary research to understand the striking relationship between body fat distribution and health outcomes. Using digestible analogies, real-world examples and images, it highlights the multi-faceted relationship between adipose biology and society. Waisted clearly conveys the key concepts and assumptions that can lead to negative perceptions of fat, and reframes these challenges to highlight the underappreciated importance of adipose tissue in humans. Waisted is an accessible yet in-depth exploration of the subject that is suitable for both specialists and non-specialists alike. It is a highly valuable resource for clinicians, health practitioners, biomedical researchers, and students who study adipose biology, obesity, and diseases related to fat dysfunction. This book also provides an interesting sociological and anthropological read for anyone who wants to gain a broader and deeper appreciation of the unique role that adipose tissue plays in human evolution and society, by considering how biological and social factors intersect.
Handbook of Growth and Growth Monitoring in Health and Disease
Author: Victor R. Preedy
Publisher: Springer Science & Business Media
ISBN: 1441917942
Category : Medical
Languages : en
Pages : 3113
Book Description
Growth is one of the human body’s most intricate processes: each body part or region has its own unique growth patterns. Yet at the individual and population levels, growth patterns are sensitive to adverse conditions, genetic predispositions, and environmental changes. And despite the body’s capacity to compensate for these developmental setbacks, the effects may be far-reaching, even life-long. The Handbook of Growth and Growth Monitoring in Health and Disease brings this significant and complex field together in one comprehensive volume: impact of adverse variables on growth patterns; issues at different stages of prenatal development, childhood, and adolescence; aspects of catch-up growth, endocrine regulation, and sexual maturation; screening and assessment methods; and international perspectives. Tables and diagrams, applications to other areas of health and disease, and summary points help make the information easier to retain. Together, these 140 self-contained chapters in 15 sections [ok?] cover every area of human growth, including: Intrauterine growth retardation. Postnatal growth in normal and abnormal situations. Cells and growth of tissues. Sensory growth and development. Effects of disease on growth. Methods and standards for assessment of growth, and more. The Handbook of Growth and Growth Monitoring in Health and Disease is an invaluable addition to the reference libraries of a wide range of health professionals, among them health scientists, physicians, physiologists, nutritionists, dieticians, nurses, public health researchers, epidemiologists, exercise physiologists, and physical therapists. It is also useful to college-level students and faculty in the health disciplines, and to policymakers and health economists.
Publisher: Springer Science & Business Media
ISBN: 1441917942
Category : Medical
Languages : en
Pages : 3113
Book Description
Growth is one of the human body’s most intricate processes: each body part or region has its own unique growth patterns. Yet at the individual and population levels, growth patterns are sensitive to adverse conditions, genetic predispositions, and environmental changes. And despite the body’s capacity to compensate for these developmental setbacks, the effects may be far-reaching, even life-long. The Handbook of Growth and Growth Monitoring in Health and Disease brings this significant and complex field together in one comprehensive volume: impact of adverse variables on growth patterns; issues at different stages of prenatal development, childhood, and adolescence; aspects of catch-up growth, endocrine regulation, and sexual maturation; screening and assessment methods; and international perspectives. Tables and diagrams, applications to other areas of health and disease, and summary points help make the information easier to retain. Together, these 140 self-contained chapters in 15 sections [ok?] cover every area of human growth, including: Intrauterine growth retardation. Postnatal growth in normal and abnormal situations. Cells and growth of tissues. Sensory growth and development. Effects of disease on growth. Methods and standards for assessment of growth, and more. The Handbook of Growth and Growth Monitoring in Health and Disease is an invaluable addition to the reference libraries of a wide range of health professionals, among them health scientists, physicians, physiologists, nutritionists, dieticians, nurses, public health researchers, epidemiologists, exercise physiologists, and physical therapists. It is also useful to college-level students and faculty in the health disciplines, and to policymakers and health economists.
Diet, Food Supply and Obesity in the Pacific
Author: World Health Organization
Publisher: World Health Organisation (Who)
ISBN: 9789290610441
Category : Health & Fitness
Languages : en
Pages : 63
Book Description
This paper attempts to collect documented evidence to examine the relationship between the food supply, dietary patterns and obesity in Pacific countries. It draws on dietary studies and reviews undertaken over the last 80 years and documented accounts of diets since evidence or food crop consumption in the Pacific was established over 28 000 years ago. Section 1 gives a short account of obesity, emphasizing that it is a growing epidemic that has affected urban communities. Section 2 discusses and defines a healthy diet for a population. In section 3, a view of food consumption patterns is given from Pacific pre-civilization and pre-European contact times to show the conservative and homogeneous nature of Pacific communities. Pacific dietary studies are reviewed in section 4, with emphasis on the contributions of micronutrients to energy. The section starts with individual country data, listing countries alphabetically. The food supply is then examined and analyzed, with data from FAO Food Balance Sheets from seven Pacific countries. This section ends with a short account of food dependence. Conclusions are then given in section 5. There is a large reference list, and food supply data are provided in the Annexes.
Publisher: World Health Organisation (Who)
ISBN: 9789290610441
Category : Health & Fitness
Languages : en
Pages : 63
Book Description
This paper attempts to collect documented evidence to examine the relationship between the food supply, dietary patterns and obesity in Pacific countries. It draws on dietary studies and reviews undertaken over the last 80 years and documented accounts of diets since evidence or food crop consumption in the Pacific was established over 28 000 years ago. Section 1 gives a short account of obesity, emphasizing that it is a growing epidemic that has affected urban communities. Section 2 discusses and defines a healthy diet for a population. In section 3, a view of food consumption patterns is given from Pacific pre-civilization and pre-European contact times to show the conservative and homogeneous nature of Pacific communities. Pacific dietary studies are reviewed in section 4, with emphasis on the contributions of micronutrients to energy. The section starts with individual country data, listing countries alphabetically. The food supply is then examined and analyzed, with data from FAO Food Balance Sheets from seven Pacific countries. This section ends with a short account of food dependence. Conclusions are then given in section 5. There is a large reference list, and food supply data are provided in the Annexes.
Obesity in Childhood and Adolescence
Author: Wieland Kiess
Publisher: Karger Medical and Scientific Publishers
ISBN: 3805577303
Category : Medical
Languages : en
Pages : 280
Book Description
Obesity in childhood and adolescence has reached epidemic proportions in all industrialized countries around the world. Its impact on individual lives as well as on health economics has to be recognized by physicians and the public alike. Among the most common consequences of obesity in the adolescent are hypertension, dyslipidemia, back pain and psychosocial problems. Therapeutic strategies include psychological and family therapy, lifestyle/behavior modification and nutrition education. The role of regular exercise and exercise programs is emphasized. Surgical procedures and drugs used in adult obesity are still not generally recommended for obese adolescents. This book aims to increase physicians knowledge and understanding of obesity in childhood and adolescence as well as to further public awareness of the health burden and economic dimension of obesity at a young age. Several chapters deliver insights into the basic understanding of which factors contribute to or prevent the development of overweight and obesity in young people. Other contributions provide tools for the clinician to manage the care of the child and adolescent with overweight/obesity. In addition, knowledge from the latest scientific studies on the molecular biology of obesity is also presented.
Publisher: Karger Medical and Scientific Publishers
ISBN: 3805577303
Category : Medical
Languages : en
Pages : 280
Book Description
Obesity in childhood and adolescence has reached epidemic proportions in all industrialized countries around the world. Its impact on individual lives as well as on health economics has to be recognized by physicians and the public alike. Among the most common consequences of obesity in the adolescent are hypertension, dyslipidemia, back pain and psychosocial problems. Therapeutic strategies include psychological and family therapy, lifestyle/behavior modification and nutrition education. The role of regular exercise and exercise programs is emphasized. Surgical procedures and drugs used in adult obesity are still not generally recommended for obese adolescents. This book aims to increase physicians knowledge and understanding of obesity in childhood and adolescence as well as to further public awareness of the health burden and economic dimension of obesity at a young age. Several chapters deliver insights into the basic understanding of which factors contribute to or prevent the development of overweight and obesity in young people. Other contributions provide tools for the clinician to manage the care of the child and adolescent with overweight/obesity. In addition, knowledge from the latest scientific studies on the molecular biology of obesity is also presented.