نتایج جستجو برای: lean mass
تعداد نتایج: 491524 فیلتر نتایج به سال:
BACKGROUND Prophylactic interventions against osteoporosis require a determination of the factors that influence the accumulation of bone mass during growth. OBJECTIVE The objective was to determine the independent sex-specific contribution of lean mass and fat mass to bone mineral content (BMC), after adjustment for anthropometric variables and lifestyle factors, in healthy children and adol...
Obesity, a state of imbalance between lean mass and fat mass, is important for the etiology of diseases affected by the interplay of multiple genetic and environmental factors. Although genome-wide association studies have repeatedly associated genes with obesity and body weight, the mechanisms underlying the interaction between the muscle and adipose tissues remain unknown. Using 351 mice (at ...
OBJECTIVES Youth exercise is associated with improved body composition, but details regarding timing and persistence are limited. We examined pre- and circum-menarcheal organized physical activity exposure (PA) as a factor in development of early post-menarcheal lean mass, fat mass and muscle strength. METHODS Participants in a longitudinal study of musculoskeletal growth using dual energy X-...
BACKGROUND The relative contribution of lean and fat to the determination of bone mineral density (BMD) in postmenopausal women is a contentious issue. The present study was undertaken to test the hypothesis that lean mass is a better determinant of BMD than fat mass. METHODS This cross-sectional study involved 210 postmenopausal women of Vietnamese background, aged between 50 and 85 years, w...
Background: Although the effect of Conjugated Linoleic Acids (CLAs) on blood pressure and body composition is revealed in several in vitro and animal studies, the results of human studies are controversial. The purpose of the current clinical double blind trial was to determine the effect of 2 months CLA supplementation on blood pressure and body composition of non trained healthy yo...
BACKGROUND Low lean mass is potentially clinically important in older persons, but criteria have not been empirically validated. As part of the FNIH (Foundation for the National Institutes of Health) Sarcopenia Project, this analysis sought to identify cutpoints in lean mass by dual-energy x-ray absorptiometry that discriminate the presence or absence of weakness (defined in a previous report i...
The purpose of this investigation was to (a) examine how asymmetry in lower extremity lean mass influenced force and power asymmetry during jumping, (b) determine how power and force asymmetry affected jump height, and (c) report normative values in collegiate athletes. Force and power were assessed from each limb using bilateral force plates during a countermovement jump in 167 division 1 athl...
OBJECTIVES To explore the usefulness of Bioelectrical Impedance Analysis (BIA) for general use by identifying best-evidenced formulae to calculate lean and fat mass, comparing these to historical gold standard data and comparing these results with machine-generated output. In addition, we explored how to best to adjust lean and fat estimates for height and how these overlapped with body mass in...
Hypovitaminosis D is increasing worldwide and is associated with low bone mass. The effects of hypovitaminosis D on bone might be direct or mediated through decreased muscle mass and function and/or secondary hyperparathyroidism. This study systematically investigated the relative contribution of lean mass, PTH, and the direct effect of vitamin D as predictors of vitamin D mediated osteopathy i...
Individual constraints are of the factors that can effect on motor development. The aim of this study was to investigate the relationship between motor proficiency with body mass index and nutritional status in healthy boys 10-14 years old in Tehran. Statistical sample was of 120 children for BMI and 90 children for nutritional status. body mass index groups, lean, normal, overweight and obese ...
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