Download or read book Weight Loss Effects on Growth Maturation Growth Related Hormones Protein Nutrition Markets and Body Composition of Adolescent Wrestlers written by James N. Roemmich and published by . This book was released on 1994 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interplay of nutrition and prepubertal steroid hormones role in the timing of puberty written by Lijie Shi and published by Cuvillier Verlag. This book was released on 2010-11-01 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background and aim Adrenarche and puberty are two important events in human’s growth and maturation. Children with premature adrenarche or precocious puberty are at risk for the development of hormone-related cancers or chronic disease later in life. Childhood nutritional status has been suggested to be associated with pubertal timing, whether it is also relevant for adrenarche (the increase in adrenal androgen production) is not clear. Excess adrenal androgen, glucocorticoid, and estrogen exposures can influence somatic growth and sexual maturation. The evidence for the role of them in the physiological range in pubertal timing is limited. This thesis aimed to examine whether body composition and certain dietary intakes may influence adrenal androgen production and whether prepubertal adrenal androgen, glucocorticoid, and estrogen status are associated with early and late pubertal markers in healthy children, independent of nutritional status. Data came from the prospective DOrtmund Nutritional and Anthropometric Longitudinally Designed (DONALD) Study, which observes diet, growth, and metabolism in healthy children from birth until young adulthood. Results Four consecutive analyses (Studies I-IV) were performed. In Study I (n=137), among all the examined anthropometric (fat mass and fat free mass) and dietary (protein, fat and fiber intake, glycemic index and load) factors, only fat mass and animal protein intake were positively associated with AA-secretion and explained 6% of total AA variation even after accounting for the indices of major steroidogenic enzyme activities. Although animal protein intake and AA secretion were associated with each other, Study II (n=109) showed that the negative associations of AA secretion with ages at Tanner stage 2 for breast (B2, girls), genital (G2, boys) and pubic hair (PH2, boys and girls) development were independent of animal protein intake and the negative associations of animal protein intake with the start of pubertal growth spurt (ATO) and age at peak height velocity (APHV) were independent of AA. Children with a higher AA secretion had a 1.5 yrs earlier begin of PH2, a 0.8 yrs earlier begin of B2_G2, and 0.2 yr shorter duration of pubertal growth acceleration than those with a lower one. In contrast to AA, GC secretion [Study III (n=110)] was positively associated with pubertal timing and this association seemed to be sex specific, i.e. only in girls. Girls with higher prepubertal GC secretion reached ATO 0.7 yrs later and menarche 0.9 yrs later; age at B2, PH2 and PHV tended also to occur later. In Study IV (n=120), urinary E excretions were not associated with ATO, APHV, or age at PH2, but with duration of pubertal growth acceleration in both sexes. Girls with higher E levels reached B2 0.9 yr and menarche 0.3 yrs earlier than girls with lower one. Prepubertal E production was not associated with age at G2 in boys. Conclusions Body fat mass may relevantly influence prepubertal adrenarchal androgen status and animal protein intake may also make a small contribution to children’s AA-secretion levels. Prepubertal variations of steroid hormones (AA, GC, and E) in physiological range appear to be differently involved in the modulation of pubertal timing in healthy children. Higher AA and E secretion may not be critical for the earlier onset of pubertal growth spurt and APHV, but precipitate a shorter pubertal growth spurt in boys and girls. In girls, higher AA or E production predicts a notably earlier onset of breast development; however age at menarche appears to be only determined by E. In boys, AA but not E is relevant for genital development. GC may influence pubertal timing of girls but not of boys. Higher GC secretion, as a marker of higher stress activity, predicts notably later onset of pubertal growth spurt and menarche. Breast and pubic hair development as well as APHV may also tend to occur later.

Download or read book Recent Advances in Growth Research Nutritional Molecular and Endocrine Perspectives written by M.W. Gillman and published by Karger Medical and Scientific Publishers. This book was released on 2013-01-24 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth in mammals encompasses several stages, from intrauterine growth through infancy and childhood to adolescence. Each of these phases is characterized by very specific nutritional, molecular and endocrine perspectives which, under ideal conditions, allow the organism to achieve its genetically programmed growth patterns.In this book, an international panel of experts addresses these topics in a historical, physiological and social perspective. The first part investigates the genetic, epigenetic, molecular and nutritional determinants of intrauterine and postnatal growth. Part two deals with non-evolutionary changes which occurred in the recent past, such as changes in body size in utero, during infancy and childhood, and during adolescence, and the potentially unfavorable consequences of enhanced nutrition and growth, including early onset of puberty, development of obesity, and increases in metabolic and cardiovascular disease. The last part addresses the question of which factors define healthy growth in light of the influence of nutritional, molecular and endocrine influences. Although the association between rapid changes in body size and adverse health effects is clear, the precise nature of causality remains uncertain. Presenting the latest scientific findings in growth research, this publication provides essential reading for pediatricians, clinical investigators and health workers.

Download or read book Adolescent Nutrition and Growth written by Felix P. Heald and published by Butterworths. This book was released on 1969 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutritional Issues in Adolescent Health written by Jane Mitchell Rees and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Weight Loss on Selected Hormones in the Adolescent Wrestler written by James Norman Roemmich and published by . This book was released on 1988 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Weight Loss on the Body Composition of Collegiate Wrestlers written by Ronald Joseph Schenk and published by . This book was released on 1984 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrient Requirements in Adolescence written by John I. McKigney and published by MIT Press (MA). This book was released on 1976 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Teens Nutrition and Dieting written by Christine Wilcox and published by Referencepoint Press. This book was released on 2015-04-01 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Compact Research: Teen Well-Being set examines the factors that influence the mental, physical, and emotional health of today's teens. Books cover a variety of topics, from body image to nutrition and dieting to issues that affect LGBT youth. The user-friendly format of the series includes clear, objective overviews; carefully selected and cited primary sources; and informative full-color statistical illustrations that provide quick reference as well as supporting in-depth research. Book jacket.

Download or read book The Effects of Rapid Weight Loss on the Body Composition and Cardiovascular Fitness of Collegiate Wrestlers written by William Anthony Latzka and published by . This book was released on 1983 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1985 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary of John Jaquish Henry Alkire s Weight Lifting Is a Waste of Time written by Milkyway Media and published by Milkyway Media. This book was released on 2021-11-24 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Buy now to get the main key ideas from John Jaquish & Henry Alkire's Weight Lifting Is a Waste of Time Fitness experts have long argued for the benefits of exercises that require weightlifting and cardio. However, real-life results have consistently negated their arguments. In Weight Lifting Is a Waste of Time (2020), John Jaquish and Henry Alkire argue against mainstream fitness and reveal its pitfalls. In fact, fitness science has overlooked several apparent concepts that, if followed, will change the game for athletes and casual gym-goers. Elements like hormones, nutrition, and strength training are often entirely ignored or wrongly interpreted. Based on this knowledge, Jaquish and Alkire provide an improved strength training strategy called the X3 for gaining muscle and maintaining a healthy and fit body.

Download or read book Eating Body Weight and Performance in Athletes written by Kelly D. Brownell and published by Williams & Wilkins. This book was released on 1992 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to integrate, evaluate, and synthesize information on eating and weight problems in athletes. It identifies: the scope of the problem, the genesis of the problem, the effects on health, psychological well-being and performance, and the appropriate methods for prevention and management of the problem.

Download or read book Teenage Nutrition and Physique written by Ruth L. Huenemann and published by Charles C. Thomas Publisher. This book was released on 1974 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adolescent Nutrition written by Myron Winick and published by John Wiley & Sons. This book was released on 1982 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A reference text for nutritionists, physicians, and other health care providers examines the vital role of nutrition in promoting normal growth and development during adolescence. Thirteen authoritative papers prepared by experts in their respective fields are organized among 4 general themes: normal nutrition requirements and practices during puberty and adolescence; nutrition under conditions of pregnancy and athletics during adolescence; iron and zinc deficiencies; and nutritional aspects of common adolescent diseases (Keshan disease, anorexia nervosa, obesity, inflammatory bowel disease, and atherosclerosis prevention). (wz).

Download or read book Dietary Predictors of Components of the Insulin like Growth Factor System in Adolescent Girls Aged 14 18 Years written by Jean M. Kerver and published by . This book was released on 2010 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index Medicus written by and published by . This book was released on 2003 with total page 1696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.