| 1. |
- Dencker, Magnus, et al.
(författare)
-
Aerobic fitness related to cardiovascular risk factors in young children.
- 2012
-
Ingår i: European Journal of Pediatrics. - : Springer Science and Business Media LLC. - 1432-1076 .- 0340-6199. ; 171:4, s. 705-710
-
Tidskriftsartikel (refereegranskat)abstract
- Low aerobic fitness (maximum oxygen uptake (VO(2PEAK))) is predictive for poor health in adults. In a cross-sectional study, we assessed if VO(2PEAK) is related to a composite risk factor score for cardiovascular disease (CVD) in 243 children (136 boys and 107 girls) aged 8 to 11 years. VO(2PEAK) was assessed by indirect calorimetry during a maximal exercise test and scaled by body mass (milliliters per minute per kilogram). Total body fat mass (TBF) and abdominal fat mass (AFM) were measured by Dual-energy X-ray absorptiometry. Total body fat was expressed as a percentage of total body mass (BF%) and body fat distribution as AFM/TBF. Systolic and diastolic blood pressure (SDP and DBP) and resting heart rate (RHR) were measured. The mean artery pressure (MAP) and pulse pressure (PP) were calculated. Echocardiography, 2D-guided M-mode, was performed. Left atrial diameter (LA) was measured and left ventricular mass (LVM) and relative wall thickness (RWT) were calculated. Z scores (value for the individual - mean value for group)/SD were calculated by sex. The sum of z scores for DBP, SDP, PP, MAP, RHR, LVM, LA, RWT, BF%, AFM and AFM/TBF were calculated in boys and girls, separately, and used as composite risk factor score for CVD. Pearson correlation revealed significant associations between VO(2PEAK) and composite risk factor score in both boys (r = -0.48 P < 0.05) and in girls (r = -0.42, P < 0.05). One-way ANOVA analysis indicated significant differences in composite risk factor score between the different quartiles of VO(2PEAK) (P < 0.001); thus, higher VO(2PEAK) was associated with lower composite risk factor score for CVD. In conclusion, low VO(2PEAK) is associated with an elevated composite risk factor score for CVD in both young boys and girls.
|
|
| 2. |
- Dencker, Magnus, et al.
(författare)
-
BMI and objectively measured body fat and body fat distribution in prepubertal children.
- 2007
-
Ingår i: Clinical Physiology and Functional Imaging. - 1475-0961. ; 27:1, s. 12-16
-
Tidskriftsartikel (refereegranskat)abstract
- Background Body Mass Index (BMI) is often used as a surrogate estimate of body fat in epidemiological studies. This study explores the association between BMI, body fat and body fat distribution assessed by Dual-Energy X-Ray Absorptiometry (DXA) in younger children. Methods Cross-sectional study of 246 children (138 boys and 108 girls) aged 8-11 years. DXA was used to quantify abdominal fat mass (AFM), total body fat (TBF) and also total body fat as percentage of total body mass (BF%). Body fat distribution was calculated as AFM/TBF. Results We found close correlations between BMI vs. TBF, BF% and AFM (r = 0.94, r = 0.92 and r = 0.93) for boys and (r = 0.95, r = 0.92 and r = 0.95) for girls, respectively (P < 0.05 for all r-values). However, significantly lower correlation (P < 0.001 for difference between the r-values) existed for body fat distribution (r = 0.64 for boys and 0.73 for girls). Conclusion Percentage body fat, TBF and AFM were all closely associated with BMI, suggesting that BMI serves as a good surrogate marker for obesity in population studies. However, a significantly lower correlation existed for BMI vs. body fat distribution, which may be a limitation when BMI is used to study cardiovascular risk factors in epidemiological studies.
|
|
| 3. |
- Dencker, Magnus, et al.
(författare)
-
Body Fat, Abdominal Fat, and Body Fat Distribution Is Related to Left Atrial Diameter in Young Children.
- 2012
-
Ingår i: Obesity. - : Wiley. - 1930-739X .- 1930-7381. ; 20, s. 1104-1108
-
Tidskriftsartikel (refereegranskat)abstract
- In adults, the size of the left atria (LA) has important prognostic information. In obese adults, adolescents and children enlargement of LA have been observed. This has not been investigated on a population-based level in young children. We therefore assessed if total body fat mass (TBF), abdominal fat, and body fat distribution were related to LA diameter. Cross-sectional study of 244 children (boys = 137 and girls n = 107) aged 8-11 years, recruited from an urban population-based cohort. Dual-energy X-ray absorptiometry (DXA) measured total lean body mass, TBF, and abdominal fat mass (AFM). Body fat was also calculated as a percentage of body mass (BF%). Body fat distribution (AFM/TBF) was calculated. Echocardiography was performed with two-dimensional guided M-mode. LA diameter was measured and left ventricular mass (LVM) was calculated. Systolic blood pressure and diastolic blood pressure were measured and maturity assessed according to Tanner. There were significant (P < 0.05) univariate correlations for all children between TBF (r = 0.40), BF% (r = 0.32), AFM (r = 0.41), and AFM/TBF (r = 0.41) vs. LA diameter. Multiple regression analyses with the inclusion of possible confounders such as lean body mass, blood pressure, gender, age, and Tanner stage revealed that TBF, AFM, and AFM/TBF were all independently related to LA diameter. Differences in the different body fat measurements explained 6-9% of the variance in LA size. These results demonstrated that both total body fat, AFM, and body fat distribution are already at a young age negatively and independently associated to LA diameter.
|
|
| 4. |
- Dencker, Magnus, et al.
(författare)
-
Body fat, abdominal fat and body fat distribution related to cardiovascular risk factors in pre-pubertal children.
- 2012
-
Ingår i: Acta Pædiatrica. - : Wiley. - 1651-2227 .- 0803-5253. ; 101:8
-
Tidskriftsartikel (refereegranskat)abstract
- Aim We analysed whether total body fat, abdominal fat and body fat distribution are associated with higher composite risk factor scores for cardiovascular disease (CVD) in young children. Methods Cross-sectional study of 238 children aged 8-11 years. Total body fat (TBF) and abdominal fat mass (AFM) were measured by DXA. TBF was expressed as a percentage of body weight (BF%). Body fat distribution was calculated as AFM/TBF. Maximal oxygen uptake (VO(2PEAK) ), systolic and diastolic blood pressure (SBP, DBP), and resting heart rate (RHR) were measured. Mean artery pressure (MAP) and pulse pressure (PP) were calculated. Left atrial diameter (LA) was measured, and left ventricular mass (LVM) and relative wall thickness (RWT) were calculated. Z-scores were calculated. Sum of z-scores for SBP, DBP, MAP, PP, RHR, LVM, LA, RWT, and -VO(2PEAK) were calculated in boys and girls, separately, and used as composite risk factor score. Results Pearson correlations between ln BF%, ln AFM and AFM/TBF versus composite risk factor score for boys were r=0.56, r=0.59, and r=0.48, all P<0.001, and for girls r=0.45, r=0.50, and r=0.48, all P<0.001. Conclusion Total body fat, abdominal fat and body fat distribution were all associated with higher composite risk factor scores for CVD in young children. © 2012 The Author(s)/Acta Paediatrica © 2012 Foundation Acta Paediatrica.
|
|
| 5. |
- Dencker, Magnus, et al.
(författare)
-
Body fat, abdominal fat and body fat distribution related to VO(2PEAK) in young children.
- 2011
-
Ingår i: International Journal of Pediatric Obesity. - : Informa UK Limited. - 1747-7174 .- 1747-7166. ; 6:2-2, s. 597-602
-
Tidskriftsartikel (refereegranskat)abstract
- Abstract Objective. Aerobic fitness, defined as maximum oxygen uptake (VO(2PEAK)), and body fat measurements represent two known risk factors for disease. The purpose of this study was to investigate the relationship between VO(2PEAK) and body fat measurements in young children at a population-based level. Methods. Cross-sectional study of 225 children (128 boys and 97 girls) aged 8-11 years, recruited from a population-based cohort. Total lean body mass (LBM), total fat mass (TBF), and abdominal fat mass (AFM) were measured by dual-energy x-ray absorptiometry. Body fat was also calculated as a percentage of body mass (BF%) and body fat distribution as AFM/TBF. VO(2PEAK) was assessed by indirect calorimetry during maximal exercise test. Results. Significant relationships existed between body fat measurements and VO(2PEAK) in both boys and girls, with Pearson correlation coefficients for absolute values of VO(2PEAK) (0.22-0.36, P< 0.05), and for VO(2PEAK) scaled by body mass (-0.38 - -0.70, P<0.05). No relationships were detected for VO(2PEAK) scaled to LBM (-0.17-0.04, all not significant). Boys and girls in the lowest quartile according to body fat measurements had higher absolute values of VO(2PEAK) and lower values of VO(2PEAK) scaled by body mass, compared with those in the highest quartile. No differences were found for VO(2PEAK) scaled to LBM. Conclusions. Our findings document the coexistence of two known risk factors for disease at a young age and confirms that VO(2PEAK) was scaled to LBM may be a better, body fat independent way of expressing fitness.
|
|
| 6. |
- Dencker, Magnus, et al.
(författare)
-
Cystatin B, cathepsin L and D related to surrogate markers for cardiovascular disease in children
- 2017
-
Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 12:11
-
Tidskriftsartikel (refereegranskat)abstract
- Objective: This study investigated potential associations between novel biomarkers for cardiovascular disease and other surrogate markers for health. Methods: Community sample of 170 (92 boys and 78 girls) children aged 8–11 years. Total fat mass (TBF) and abdominal fat (AFM) were measured by Dual-energy x-ray absorptiometry (DXA). Total body fat was also expressed as percentage of total body mass (BF%), and body fat distribution was calculated as AFM/TBF. Maximal oxygen uptake (VO2PEAK), systolic and diastolic blood pressure (SBP and DBP) and pulse pressure (PP) were measured. Echocardiography was performed. Left atrial size (LA) and left ventricular mass (LVM) were measured. A follow-up DXA scan was available in 152 children (84 boys and 68 girls). Frozen serum samples were analyzed for cystatin B, cathepsin L and cathepsin D. Results: Partial correlations between cystatin B versus lnTBF, lnBF%, lnAFM, AFM/TBF, VO2PEAK and PP were; r = 0.38, 0.36, 0.38, 0.29, -0.25 and 0.25, P = 0.001 or less for all. Weaker predominantly non-significant correlations were found for cathepsin L, whereas cathepsin D was not related to any surrogate markers for health. No significant correlations were found between biomarkers and change in body fat over 2 years. Conclusion: Findings from this community-based cohort of young children show that surrogate markers for cardiovascular disease such as total fat mass, percent body fat, abdominal fat, body fat distribution, maximal oxygen uptake and pulse pressure were all associated with cystatin B. This was not found for cathepsin L or cathepsin D.
|
|
| 7. |
- Dencker, Magnus, et al.
(författare)
-
Galectin-3 levels relate in children to total body fat, abdominal fat, body fat distribution, and cardiac size
- 2018
-
Ingår i: European Journal of Pediatrics. - : Springer Science and Business Media LLC. - 0340-6199 .- 1432-1076. ; 177:3, s. 461-467
-
Tidskriftsartikel (refereegranskat)abstract
- Galectin-3 has recently been proposed as a novel biomarker for cardiovascular disease in adults. The purpose of this investigation was to assess relationships between galectin-3 levels and total body fat, abdominal fat, body fat distribution, aerobic fitness, blood pressure, left ventricular mass, left atrial size, and increase in body fat over a 2-year period in a population-based sample of children. Our study included 170 children aged 8–11 years. Total fat mass and abdominal fat were measured by dual-energy x-ray absorptiometry (DXA). Body fat distribution was expressed as abdominal fat/total fat mass. Maximal oxygen uptake was assessed by indirect calorimetry during a maximal exercise test and scaled to body mass. Systolic and diastolic blood pressure and pulse pressure were measured. Left atrial size, left ventricular mass, and relative wall thickness were measured by echocardiography. Frozen serum samples were analyzed for galectin-3 by the Proximity Extension Assay technique. A follow-up DXA scan was performed in 152 children 2 years after the baseline exam. Partial correlations, with adjustment for sex and age, between galectin-3 versus body fat measurements indicated weak to moderate relationships. Moreover, left atrial size, left ventricular mass, and relative wall thickness and pulse pressure were also correlated with galectin-3. Neither systolic blood pressure nor maximal oxygen uptake was correlated with galectin-3. There was also a correlation between galectin-3 and increase in total body fat over 2 years, while no such correlations were found for the other fat measurements. Conclusion: More body fat and abdominal fat, more abdominal body fat distribution, more left ventricular mass, and increased left atrial size were all associated with higher levels of galectin-3. Increase in total body fat over 2 years was also associated with higher levels of galectin-3.(Table presented.)
|
|
| 8. |
- Dencker, Magnus, et al.
(författare)
-
Total body fat, abdominal fat, body fat distribution and surrogate markers for health related to adipocyte fatty acid-binding protein (FABP4) in children
- 2017
-
Ingår i: Journal of Pediatric Endocrinology and Metabolism. - : Walter de Gruyter GmbH. - 0334-018X .- 2191-0251. ; 30:4, s. 375-382
-
Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to assess possible relationships between adipocyte fatty acid-binding protein (FABP4) and total body fat (TBF), abdominal fat, body fat distribution, aerobic fitness, blood pressure, cardiac dimensions and the increase in body fat over 2 years in a community sample of children. A cross-sectional study was used in a community sample of 170 (92 boys and 78 girls) children aged 8-11 years. TBF and abdominal fat (AFM) were measured by dual-energy X-ray absorptiometry (DXA). TBF was also expressed as percentage of total body mass (BF%), and body fat distribution was calculated as AFM/TBF. Maximal oxygen uptake (VO2PEAK) was assessed by indirect calorimetry during a maximal exercise test and scaled to body mass. Systolic and diastolic blood pressure (SBP and DBP) and pulse pressure (PP) were measured. Echocardiography was performed. Left atrial (LA) size was measured, and left ventricular mass (LVM) was calculated. A follow-up DXA scan was available in 152 children (84 boys and 68 girls). Frozen serum samples were analyzed for FABP4. Partial correlations, with adjustment for sex, between FABP4 vs. ln TBF, ln BF%, ln AFM, AFM/TBF and VO2PEAK were (r=0.69, 0.68, 0.69, 0.49 and -0.39, p<0.05 for all). Moreover, SBP, PP, LVM and LA were also weakly correlated with FABP4 (r=0.23, 0.22, 0.28 and 0.21, p<0.05 for all). Correlations between FABP4 vs. increase in TBF and AFM over 2 years were 0.29 and 0.26, p<0.05, for both. (Increase in percent body fat or change in fat distribution were not correlated.) Findings from this community-based cohort of young children show that increased body fat and abdominal fat, more abdominal body fat distribution, low fitness, more LVM and increased LA, increased SBP and PP were all associated with increased levels of FABP4. Increase in TBF and abdominal fat over 2 years were also associated with increased levels of FABP4.
|
|
| 9. |
- Tanha, Tina, et al.
(författare)
-
Lack of physical activity in young children is related to higher composite risk factor score for cardiovascular disease.
- 2011
-
Ingår i: Acta paediatrica. - : Wiley. - 1651-2227 .- 0803-5253. ; 100, s. 717-721
-
Tidskriftsartikel (refereegranskat)abstract
- Aim: This study evaluates if accelerometer measured physical activity is related to higher composite risk factor scores for cardiovascular disease (CVD) in children. Methods: Cross-sectional study that included 223 children aged 7.9-11.1 years (boys n=123, girls n=100). Daily physical activity was assessed by accelerometers for four days. Body fat was quantified by dual x-ray absorptiometry. Maximal oxygen uptake was measured during a maximal exercise test. Resting heart rate and blood pressure were measured. Z-scores [(value for the individual-mean value for group)/SD] were calculated for each variable and the sum of different risk factor z-scores used as an index of composite risk factors score for CVD. Results: Partial correlations, from General Linear Model, between moderate to vigorous physical activity (MVPA), vigorous physical activity (VPA) and general physical activity (GPA) versus index of composite risk factor score were in boys -0.29, -0.33 and -0.30 (all p<0.05). The corresponding correlations in girls were -0.28, -0.32 (both p<0.05), and -0.18, (NS). Conclusion: Low amounts of MVPA and VPA were related to higher composite risk factor scores for CVD in children aged 8-11 years.
|
|
