Inverted BMI rather than BMI is a better predictor of DEXA determined body fatness in children

Duncan, Michael; Martins, Clarice; Silva, Gustavo; Marques, Elisa A.; Mota, Jorge; Aires, Luísa

doi:10.1038/ejcn.2013.285

Cited by 10 publications

(5 citation statements)

References 12 publications

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“…It can be argued that the BMI is not an ideal measure for paediatric adiposity or body morphology [20,21]. However, like the FPI, the BMI is widely used in both clinical practice and research, and was the available parameter common to all datasets to represent body mass.…”

Section: Discussionmentioning

confidence: 99%

The relationship between paediatric foot posture and body mass index: do heavier children really have flatter feet?

Evans

Karimi

2015

Journal of Foot and Ankle Research

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BackgroundSeveral studies have found positive correlation between flatfeet and increased body mass in children. One study, utilizing a differing method of foot posture assessment, found the inverse. The purpose of this study was to further explore the relationship between children’s foot posture and body mass, utilizing the foot posture index in a large study population, as opposed to the footprint based measures of most previous studies.MethodsData for both foot posture index (FPI) and body mass index (BMI) for healthy children were acquired from five previous studies. The amalgamated dataset comprised observations for both BMI and FPI-6 in 728 children aged from three to 15 years. Three FPI-6 scores levels defined the range of flatfeet detected: FPI-6 ≥ +6; FPI-6 ≥ +8; FPI-6 ≥ +10. BMI cut-points were used to define overweight for each age group.ResultsIn the study population of 728 children, flatfeet (FPI ≥ +6) were found in 290 (40 %) cases and non-flatfeet in 438 (60 %) cases. FPI ≥ +8 yielded flatfeet in 142 (20 %) cases and FPI ≥ +10 yielded flatfeet in 41 (5 %) cases. Whilst 272 (37 %) children were overweight, only 74 (10.1 %) of the overweight children had flatfeet (FPI ≥ +6), which diminished to 36 (4.9 %) at FPI ≥ +8, and 9 (1.2 %) at FPI ≥ +10.Significant and moderate correlation was found between BMI and age (r = 0.384, p < 0.01). Very weak, but significant, correlation was found between BMI and FPI (r = −0.077, p < 0.05). Significant mean differences between gender and BMI were found (t-test = 2.56, p < 0.05). There was strong correlation between FPI scores on left and right sides (r = 0.899, p < 0.01).ConclusionsThis study found no association between increased body mass and flatfeet in children, a finding in contrast to that repeatedly concluded by many previous studies. Whilst properties of the FPI and BMI are limiting, these findings question the concern about children’s increased body mass as a specific influence on (flatter) foot posture, and also the validity of footprint versus anatomically based foot posture measures.

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Section: Discussionmentioning

confidence: 99%

The relationship between paediatric foot posture and body mass index: do heavier children really have flatter feet?

Evans

Karimi

2015

Journal of Foot and Ankle Research

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“…Differences in BMI by age and sex (as fixed factors) controlling for difference in BF% were analysed using ANCOVA (taking BF% as the covariate). Recognising that BMI is positively skewed and unlikely to be normally distributed, we adopted a simple inverse transformation, known to overcome this problem [5,15]. A re-analysis of iBMI was conducted to confirm the divergent nature of the sex-by-age interaction (see Results).…”

Section: Methodsmentioning

confidence: 99%

BMI Fails to Reflect the Developmental Changes in Body Fatness between Boys and Girls during Adolescence

Nevill

Reuter

Brand

et al. 2021

IJERPH

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Body mass index (BMI) is thought to reflect excess adiposity in both youth and adults alike. However, the association between BMI and fatness varies, especially as children grow into adults. Thus, the present study sought to address this issue by characterizing how BMI reflects age and sex differences in body fatness in 7–16-year-old children. Methods: This cross-sectional study was conducted with 2150 children and adolescents, aged 7 to 16 years from the city of Santa Cruz do Sul, Brazil. BMI (kg/m2), and percentage body fat, using tricipital and subscapular folds, were assessed. For statistical analysis, ANOVA and ANCOVA were used. Results: When considered in isolation, there was no significant interaction in the age-by-sex differences in BMI (p = 0.69). However, when we controlled for percent body fatness, the analysis revealed considerable age-by-sex differences in BMI (p < 0.001). Conclusion: For the same body fat (%), there are no differences in BMI in children <10 years.

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“…Body mass index (BMI) is defined as a measure that compares an individual’s weight in relation to height; it is calculated by dividing weight in kilograms by the square of height in meters (kg/m 2 ) ( 1 ). BMI is widely used to classify individuals into different weight categories, which helps identify potential health risks associated with underweight and excess body weight (overweight/obesity) ( 2 ). Excess body weight in young people, particularly among university students, represents one of the most important public health problems worldwide.…”

Section: Introductionmentioning

confidence: 99%

Body mass index and healthy lifestyle practices among Peruvian university students: a comparative study among academic discipline

Saintila,

Calizaya-Milla,

Carranza-Cubas

et al. 2024

Front. Nutr.

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BackgroundExcess body weight and an unhealthy lifestyle are a risk factor for noncommunicable diseases. University students are susceptible to unhealthy habits and obesity. This study compared body mass index (BMI) and healthy lifestyle practices among university students from four academic disciplines: Health Sciences, Business Sciences, Human Sciences and Education, and Engineering/Architecture.MethodsA cross-sectional study was carried out using a sample of 6,642 university students selected by non-probability convenience sampling. The Diet and Healthy Lifestyle Scale (DEVS), the Peruvian validation of the Vegetarian Lifestyle Index (VLI), was used to assess healthy lifestyle practices.ResultsStudents in the areas of Business Sciences and Engineering/Architecture had a higher BMI than their peers in Health Sciences (B = 0.35, 95% CI: 0.15–0.56 and 0.32, 95% CI: 0.13–0.52; p = 0.001). Additionally, these students tended to adopt less healthy lifestyle (B = −0.11, 95% CI: −0.20 to −0.01 and −0.09, 95% CI: −0.18 to −0.00; p < 0.05) compared to those in Health Sciences.ConclusionAlthough students of Health Sciences and Human Sciences and Education exhibited healthy lifestyle patterns, there is a clear need to improve eating and living habits in general among the university population to mitigate the risk factors associated with non-communicable diseases.

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Inverted BMI rather than BMI is a better predictor of DEXA determined body fatness in children

Cited by 10 publications

References 12 publications

The relationship between paediatric foot posture and body mass index: do heavier children really have flatter feet?

The relationship between paediatric foot posture and body mass index: do heavier children really have flatter feet?

BMI Fails to Reflect the Developmental Changes in Body Fatness between Boys and Girls during Adolescence

Body mass index and healthy lifestyle practices among Peruvian university students: a comparative study among academic discipline

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