Characterization of Genetic and Lifestyle Factors for Determining Variation in Body Mass Index, Fat Mass, Percentage of Fat Mass, and Lean Mass

2001 ◽  
Vol 4 (4) ◽  
pp. 353-361 ◽  
Author(s):  
Hong-Wen Deng ◽  
Dong-Bing Lai ◽  
Theresa Conway ◽  
Jing Li ◽  
Fu-Hua Xu ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Fat Mass ◽  
Lean Mass ◽  
Lifestyle Factors ◽  
Mass Percentage

scholarly journals Number of children and body composition in later life among men and women: Results from a British birth cohort study

2018 ◽  
Author(s):  
Charis Bridger Staatz ◽  
Rebecca Hardy
Keyword(s):  
Body Mass Index ◽  
Body Composition ◽  
Body Mass ◽  
Fat Mass ◽  
Lean Mass ◽  
Biological Effects ◽  
Later Life ◽  
Birth Cohort Study ◽  
Mass Ratio ◽  
Number Of Children

Background Although research has found associations between increasing number of children and higher body mass index (BMI), there has been limited research investigating the association with body composition despite abdominal fat being associated with cardiovascular and metabolic risk independently of general adiposity. Most existing research has focussed on women, but investigating the relationship in men can help distinguish biological effects of pregnancy from social pathways related to parenthood. Methods Using the MRC National Survey of Health and Development (NSHD) multiple regression models were applied to test associations between number of children and body composition at age 60-64 (N=2229) and body mass index (BMI) and waist circumference (WC) at ages 60-64 and 69 (N=2149). Results In adjusted models, associations were observed between increasing numbers of children and increasing fat-adjusted lean mass index in women (p=0.06). Among men, those with children had 0.59kg (95% CI: 0.15 to 1.02) greater lean mass index than those without and fat:lean mass ratio was greater in those with 4+ children because of their slightly higher mean fat mass. Weak evidence of a higher android:gynoid mass ratio in women with children (0.03, 95% CI: 0.00,0.06, p=0.1) was observed with no associations with fat mass index or android or gynoid fat mass. Increasing BMI was observed with increasing parity in women at 60-64 and more strongly at 69 years where associations among men were also observed more clearly. Conclusion There was little evidence of a consistent association between number of children and body composition in early old age. The strongest associations are observed for lean, rather than fat mass, and in men rather than women, suggesting little evidence of biological effects of pregnancy in women. The results indicate social pathways associated with parenthood are the likely underlying mechanisms, with suggestion there may be selection into parenthood among men.

scholarly journals Body mass index, physical activity, and physical fitness of adolescence

2021 ◽  
Vol 10 (2) ◽  
Author(s):  
Ratna Candra Dewi ◽  
Nanda Rimawati ◽  
Purbodjati Purbodjati
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Body Composition ◽  
Physical Fitness ◽  
Body Mass ◽  
Fat Mass ◽  
Pearson Correlation ◽  
Moderate Physical Activity ◽  
Normal Body Mass Index ◽  
Mass Percentage

Background: Adolescents experience growth and significant changes in body composition which influence physical activity and response to sport or exercise. The level of physical fitness in adolescent girls is usually lower than that of boys, due to differences in body composition and levels of physical activity. The aim of this study was to examine the relationship between fat mass percentage, body composition, physical activity, and physical fitness.Design and Methods: This study used an analytical observational, and cross-sectional design with total samples consisting of 70 male and female students aged 14-15 years. They were selected through simple random sampling, and the data collected were anthropometric measurements, body composition, physical activity and physical fitness. In addition, the Pearson correlation test was used for data analysis.Results: The results showed that 68.57% of participants had a normal body mass index, 74.3% had moderate physical activity, and 44.28% had fat mass percentage including an obesity category and, 54.29% had low physical fitness. Furthermore, the Pearson test showed a significant relationship between physical activity, body mass index and fat mass percentage with physical fitness.Conclusions: An increased fat mass percentage is associated with decreased levels of physical fitness. Furthermore, a good determinant of low physical fitness in obese conditions is the percentage of fat mass rather than BMI.

scholarly journals Association between C-Reactive Protein and Adiposity in Women

2009 ◽  
Vol 94 (10) ◽  
pp. 3969-3977 ◽  
Author(s):  
Murielle Bochud ◽  
Fabienne Marquant ◽  
Pedro-Manuel Marques-Vidal ◽  
Peter Vollenweider ◽  
Jacques S. Beckmann ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Single Nucleotide Polymorphism ◽  
Body Mass ◽  
Fat Mass ◽  
Lean Mass ◽  
Nucleotide Polymorphism ◽  
C Reactive Protein ◽  
Single Nucleotide ◽  
Reactive Protein

Context: The link between C-reactive protein (CRP) and adiposity deserves to be further explored, considering the controversial diabetogenic role of CRP. Objective: We explored the potential causal role of CRP on measures of adiposity. Design: We used a Mendelian randomization approach with the CRP and LEPR genes as instrumental variables in a cross-sectional Caucasian population-based study comprising 2526 men and 2836 women. Adiposity was measured using body mass index (BMI), fat and lean mass estimated by bioelectrical impedance, and waist circumference. Results: Log-transformed CRP explained by the rs7553007 single-nucleotide polymorphism tagging the CRP gene was significantly associated with BMI [regression coefficient: 1.22 (0.18; 2.25), P = 0.02] and fat mass [2.67 (0.65; 4.68), P = 0.01] but not with lean mass in women, whereas no association was found in men. Log-transformed CRP explained by the rs1805096 LEPR single-nucleotide polymorphism was also positively associated, although not significantly, with BMI or fat mass. The combined CRP-LEPR instrument explained 2.24 and 0.77% of CRP variance in women and men, respectively. Log-transformed CRP explained by this combined instrument was significantly associated with BMI [0.98 (0.32; 1.63), P = 0.004], fat mass [2.07 (0.79; 3.34), P = 0.001], and waist [2.09 (0.39; 3.78), P = 0.01] in women but not men. Conclusion: Our data suggest that CRP is causally and positively related to BMI in women and that this is mainly due to fat mass. Results on the combined CRP-LEPR instrument suggest that leptin may play a role in the causal association between CRP and adiposity in women. Results in men were not significant. Results in this study suggest that C-reactive protein is causally related to body mass index in women, and that this is mainly due to fat mass.

scholarly journals SP419ESTIMATION OF THE FAT MASS PERCENTAGE FROM ANTHROPOMETRIC MEASURES IN RELATION TO BODY MASS INDEX IN PATIENTS ON HEMODIALYSIS

2017 ◽  
Vol 32 (suppl_3) ◽  
pp. iii260-iii260
Author(s):  
Mercedes Albaladejo Pérez ◽  
Marisol Ros ◽  
Susana Roca ◽  
Maria Rosa Gea ◽  
Laura Bucalo ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Fat Mass ◽  
Mass Percentage ◽  
Anthropometric Measures

scholarly journals Relation of Body's Lean Mass, Fat Mass, and Body Mass Index With Submaximal Systolic Blood Pressure in Young Adult Men

2016 ◽  
Vol 117 (3) ◽  
pp. 394-398 ◽  
Author(s):  
Vivek K. Prasad ◽  
Clemens Drenowatz ◽  
Gregory A. Hand ◽  
Carl J. Lavie ◽  
Xuemei Sui ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Body Mass Index ◽  
Young Adult ◽  
Systolic Blood Pressure ◽  
Body Mass ◽  
Fat Mass ◽  
Lean Mass ◽  
Adult Men
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