Increased body fat is independently and negatively related with cardiorespiratory fitness levels in children and adolescents with normal weight

2010 ◽  
Vol 17 (6) ◽  
pp. 649-654 ◽  
Author(s):  
Pedro Marques-Vidal ◽  
Gisela Marcelino ◽  
Paula Ravasco ◽  
João Miguel Oliveira ◽  
Fred Paccaud
Keyword(s):  
Children And Adolescents ◽  
Cardiorespiratory Fitness ◽  
Body Fat ◽  
Normal Weight ◽  
Fitness Levels

scholarly journals Estimation of percentage of body fat in field studies – a method based on relative elbow breadth (Frame Index) and BMI

2021 ◽  
Vol 1 ◽  
Author(s):  
Rebekka Mumm ◽  
Anna Reimann ◽  
Christiane Scheffler
Keyword(s):  
Children And Adolescents ◽  
Body Fat ◽  
Field Studies ◽  
Skinfold Thickness ◽  
Public Health Research ◽  
Normal Weight ◽  
Overweight And Obesity ◽  
Obese Children ◽  
Cross Sectional ◽  
Skeletal Robusticity

Background Over the last 20 years, a decreasing trend in external skeletal robusticity and an increasing trend in overweight and obesity was observed worldwide in adults and children as modern lifestyles in nutritional and activity behavior have changed. However, body mass index (BMI) as a measure for overweight is not an ideal predictor of % body fat (%BF) either in children and adolescents or in adults. On the contrary, it disguises a phenomenon called “hidden obesity”. Objectives We aim to approximate %BF by combining skeletal robusticity and BMI and develop an estimation-based tool to identify normal weight obese children and adolescents. Sample and Methods We analyzed cross-sectional data on height, weight, elbow breadth, and skinfold thickness (triceps and subscapular) of German children aged 6 to 18 years (N=15,034). We used modified Hattori charts and multiple linear regression to develop a tool, the “%BF estimator”, to estimate %BF by using BMI and skeletal robusticity measured as Frame Index. Results Independent of sex and age an increase in BMI is associated with an increase in %BF, an increase in Frame Index is associated with a decrease in %BF. The developed tool “%BF estimator” allows the estimation of %BF per sex and age group after calculation of BMI and Frame Index. Conclusion The “%BF estimator” is an easily applicable tool for the estimation of %BF in respect of body composition for clinical practice, screening, and public health research. It is non-invasive and has high accuracy. Further, it allows the identification of normal weight obese children and adolescents.

scholarly journals Association between Weight Status and Physical Fitness in Chinese Mainland Children and Adolescents: A Cross-Sectional Study

2020 ◽  
Vol 17 (7) ◽  
pp. 2468
Author(s):  
Yatao Xu ◽  
Maorong Mei ◽  
Hui Wang ◽  
Qingwei Yan ◽  
Gang He
Keyword(s):  
Physical Fitness ◽  
Children And Adolescents ◽  
Cardiorespiratory Fitness ◽  
Weight Status ◽  
Handgrip Strength ◽  
Chinese Mainland ◽  
Normal Weight ◽  
High Odds ◽  
Explosive Strength ◽  
Fitness Index

Background: The increasing prevalence of obesity among children and adolescents is a major public health challenge worldwide. This study examined the relationship between physical fitness and BMI spanning the range from underweight to obese among Chinese mainland children and adolescents. Methods: Participants were 22,681 children and adolescents (11,300 boys and 11,381 girls) aged 10–18 years from the Chinese mainland. Weight status was classified as underweight, normal weight, overweight, and obese using WHO 2007 standards. Physical fitness parameters such as cardiorespiratory fitness (VO2max), lower body explosive strength (standing broad jump), upper body explosive strength (handgrip strength), abdominal muscular endurance (sit-ups in 30 s), flexibility (sit-and-reach), and agility (repeat bestride (20 s)) were assessed. Results: There was a significant association between weight status categories and physical fitness in all age groups and sex (plinear < 0.001, pquadratic < 0.001). Underweight adolescents performed better in lower limb strength, flexibility, agility, and cardiorespiratory fitness than their obese peers, but worse in upper limb strength. Underweight boys aged 10–11 and 12–13 years and girls aged 10–11 years showed significantly (p < 0.05) high odds of meeting a low physical fitness index. Obese adolescents have high odds of meeting a low physical fitness index with age. Conclusion: The present study showed a nonlinear relationship between weight status and physical fitness. Children and adolescents who were classified as underweight or obese had poorer physical fitness than their normal-weight peers.

scholarly journals Homocysteine levels in children and adolescents are associated with the methylenetetrahydrofolate reductase 677C>T genotype, but not with physical activity, fitness or fatness: The European Youth Heart Study

2007 ◽  
Vol 97 (2) ◽  
pp. 255-262 ◽  
Author(s):  
Jonatan R. Ruiz ◽  
Anita Hurtig-Wennlöf ◽  
Francisco B. Ortega ◽  
Emma Patterson ◽  
Torbjörn K. Nilsson ◽  
...  
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Cardiorespiratory Fitness ◽  
Body Fat ◽  
Methylenetetrahydrofolate Reductase ◽  
Test Body ◽  
Outcome Variable ◽  
Cross Sectional ◽  
Mean Values ◽  
Thcy Level

To examine the associations of total plasma homocysteine (tHcy) with physical activity, cardiorespiratory fitness and fatness in children and adolescents, a cross-sectional study of 301 children (9–10 years old) and 379 adolescents (15–16 years old) was conducted. Physical activity was measured by accelerometry. Cardiorespiratory fitness was measured with a maximal ergometer bike test. Body fat was derived from the sum of five skinfold thicknesses. Genotyping for the methylenetetrahydrofolate reductase (MTHFR) 677C>T polymorphism was done by DNA sequencing. Fasting tHcy level was the outcome variable. Multiple regressions were used to determine the degree to which variance in tHcy was explained by physical activity, cardiorespiratory fitness and body fat, after controlling for potential confounders including MTHFR 677C>T genotype. tHcy levels were neither associated with any measure of level and pattern of physical activity nor with data on cardiorespiratory fitness, or body fat, in any age group after controlling for potential confounders including MTHFR 677C>T and even when subgroups 677TT and 677CC+CT were analysed separately. Mean values of tHcy were significantly higher in the TT subgroup compared with CC and CT subgroups in children (TT 7·4 μmol/l, CC 6·3 μmol/l, CT 6·6 μmol/l,P < 0·001 andP = 0·019, respectively) and adolescents (TT 16·9 μmol/l, CC 8·3 μmol/l, CT 9·0 μmol/l, bothP < 0·001). The results suggest that physical activity, fitness and body fat are not associated with tHcy levels in children and adolescents, even after controlling for presence of the MTHFR 677C>T genotype, the main influence on tHcy levels in these subjects.

scholarly journals Normal-Weight Obesity Is Associated with Poorer Cardiometabolic Profile and Lower Physical Fitness Levels in Children and Adolescents

Nutrients ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1171 ◽  
Author(s):  
Antonio García-Hermoso ◽  
Cesar Agostinis-Sobrinho ◽  
Gloria Eugenia Camargo-Villalba ◽  
Nubia Mercedes González-Jiménez ◽  
Mikel Izquierdo ◽  
...  
Keyword(s):  
Risk Factors ◽  
Body Mass Index ◽  
Physical Fitness ◽  
Children And Adolescents ◽  
Body Mass ◽  
Body Fat ◽  
Cardiometabolic Risk ◽  
Normal Weight ◽  
Normal Weight Obesity ◽  
Cardiometabolic Profile

Normal-weight obesity (NWO) syndrome has been shown to be associated with cardiometabolic dysfunction. However, little is known regarding this potential relationship in Latin American children and adolescents. The aim of this study was two-fold: (i) to investigate whether Colombian youth with NWO syndrome have a poorer cardiometabolic profile and physical fitness performance than normal-weight lean (NWL) peers; and (ii) to determine if physical fitness levels are related to prevalence of normal-weight obesity in youth. This was an analytical cross-sectional study of 1919 youths (9–179 years old, 53.0% girls) in the capital area of Colombia. NWO was defined as a body mass index < 25 kg/m2 and a validated body fat percentage above the sex-age-specific 90th percentile for Colombian children and adolescents. Body fat was estimated using bioelectrical impedance analysis, cardiorespiratory fitness (CRF) was estimated using the 20-meter shuttle run test, and muscular fitness with the handgrip test. Biochemical profile blood samples were collected for cardiometabolic risk factors. After adjusting for chronological age, pubertal stage, and Mediterranean diet adherence, the NWO group (boys and girls) had significantly higher values for cardiometabolic risk factors, and waist circumference (WC) than the NWL group. The prevalence of NWO was lower in youth classified with healthy CRF (boys, odds ratio (OR) = 0.54, 95% confidence interval (CI) 0.37 to 0.78; girls, OR = 0.35, 95% CI 0.24 to 0.50), p < 0.001. Our findings indicate that using only body mass index for the assessment of cardiometabolic risk likely misrepresents true adiposity and suggest the need to include the assessment of body fat in the routine clinical evaluation of individuals during childhood and adolescence.

scholarly journals ASSOCIATION BETWEEN BODY FAT DISTRIBUTION AND BLOOD PRESSURE IN NORMAL-WEIGHT CHINESE CHILDREN AND ADOLESCENTS

2021 ◽  
Vol 39 (Supplement 1) ◽  
pp. e415
Author(s):  
Rongrong Cai ◽  
Jie Dang ◽  
Yangyang Dong ◽  
Hao Zhang ◽  
Qingmei Yang ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Children And Adolescents ◽  
Body Fat ◽  
Fat Distribution ◽  
Normal Weight ◽  
Body Fat Distribution ◽  
Chinese Children ◽  
Chinese Children And Adolescents

Variable relationship of fat mass and bone with pubertal staging in obese and normal weight Indian children and adolescents

2013 ◽  
Author(s):  
Khadilkar Anuradha ◽  
Ekbote Veena ◽  
Pandit Deepa ◽  
Chiplonkar Shashi ◽  
Zulf Mughal M ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Fat Mass ◽  
Normal Weight ◽  
Indian Children ◽  
Relationship Of

Characterization and prevalence of obesity among normal weight college students

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Kara C. Anderson ◽  
Katie R. Hirsch ◽  
Austin M. Peterjohn ◽  
Malia N.M. Blue ◽  
Alexis A. Pihoker ◽  
...  
Keyword(s):  
College Students ◽  
Body Fat ◽  
Fat Mass ◽  
Vigorous Physical Activity ◽  
Normal Weight ◽  
High Density ◽  
High Density Lipoproteins ◽  
Cardiometabolic Health ◽  
Body Fat Percentage ◽  
Fat Percentage

AbstractNormal weight obesity (NWO) describes individuals who have a normal weight body mass index (BMI), but have an unhealthy amount of body fat. Based on the life-long habits that develop during college, exploring NWO among a college-aged population may be essential in identifying and preventing obesity that develops in early adulthood. This study aimed to characterize NWO among young adults with normal weight BMI. 94 college students (Mean ± SD: Age: 19.6 ± 1.5 yrs; BMI: 21.9 ± 1.8 kg/m2) enrolled during the Fall semester (Aug-Oct) were assessed for body composition by dual energy X-ray absorptiometry to determine body fat percentage, fat mass, lean mass and trunk fat; lifestyle habits were characterized from validated questionnaires. Mean arterial pressure and metabolic biomarkers [total cholesterol, high density lipoproteins, non-high density lipoproteins, and glucose] were evaluated for cardiometabolic health. NWO was defined using data from the National Health and Nutrition Examination Survey (NHANES) for body fat percentage. Data was analyzed by group (NWO vs NWL) and sex. with independent t-tests to investigate continuous data, and chi-square test of independence for categorical data. Rates of NWO for the total sample were 13.8%. Males (n=30) had a higher rate of NWO (26.7%) compared to females (n=64; 7.8%). NWO individuals had higher fat mass (p=0.024), trunk fat (p<0.001), and larger waist to hip ratio (p<0.001) than normal weight lean. NWO also engaged in less vigorous physical activity (p=0.043). The occurrence of NWO among otherwise healthy college students is evident. Identification of these individuals may be an effective component for obesity prevention and treatment. Determining feasible methods to measure body fat in this population is essential, as BMI may mask obesity in a young adult population.

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