Evidence map›Paper›PMID 25896064›Full record

ArticleInternational journal of obesity (2005)2015

Modeling the dynamics of BMI changes during adolescence. The Oporto Growth, Health and Performance Study.

M C de Souza, J C Eisenmann, D V e Santos, R N de Chaves, C L de Moraes Forjaz, J A R Maia

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Article in International journal of obesity (2005), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
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11citing papers in PubMed, 6 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 6 syntheses or guidelines pooled it.

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

M C de Souza1] CIFID, Faculty of Sport, University of Porto, Porto, Portugal [2] CAPES Foundation, Ministry of Education of Brazil, Brasília, Brazil.
J C EisenmannDepartment of Radiology, Michigan State University, East Lansing, MI, USA.
D V e SantosCIFID, Faculty of Sport, University of Porto, Porto, Portugal.
R N de ChavesFederal University of Technology of Paraná, Curitiba, Paraná, Brazil.
C L de Moraes ForjazExercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
J A R MaiaCIFID, Faculty of Sport, University of Porto, Porto, Portugal.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe aims of this study were twofold: (i) to model changes in body mass index (BMI) of 10-18-year-old adolescents, and (ii) to investigate the effects of total physical activity (TPA), physical fitness (PF), sleep duration and fruit/vegetable consumption in BMI trajectories across time.

methodsData were obtained from the Oporto Growth, Health and Performance Study and comprised 6894 adolescents (3418 girls) divided into four age cohorts (10, 12, 14 and 16 years) measured annually for 3 years. BMI was computed using the standard formula (kg m(-2)); TPA was estimated with the Baecke questionnaire; PF measures included 1-mile run/walk, 50 yard dash (50YD), standing long jump (SLJ), handgrip strength (HGr) and agility shuttle run. Longitudinal changes in BMI were analyzed using the multilevel modeling approach.

resultsThe average BMI at age of peak of height velocity was 20.7±0.07 kg m(-2) for girls (P<0.001) and 20.58±0.06 kg m(-2) for boys (P<0.001). The annual increment in BMI was 1.36±0.04 kg m(-2), P<0.001 and 1.23±0.03 kg m(-2), P<0.001 for girls and boys, respectively. PF were related to BMI trajectories in both sexes (Girls: β1mile=0.12±0.02, P<0.001; βSLJ=-0.01±0.00, P<0.001; β50YD=0.28±0.05, P<0.001; βHGr=-8.91±0.54, P<0.001; Boys: β1mile=0.18±0.02, P<0.001; βSLJ=-0.01±0.00, P<0.001; β50YD=0.26±0.04, P<0.001; and βHGr=-8.15±0.45, P<0.001). TPA only showed significant, but positive, association with girls' BMI trajectories (β=0.10±0.03, P=0.001). After adjusting for the covariates, sleep duration and fruit/vegetable intake did not show any significant association with BMI trajectories either sex.

conclusionsBMI increased linearly with age in both gender. PF levels are negatively associated with BMI across time in both boys and girls. Therefore, promotion of PF in the adolescent years seems to be effective in the early prevention of obesity.

Indexed as

DietExerciseAdolescentBody Mass IndexChildFemaleFollow-Up StudiesHealth Knowledge, Attitudes, PracticeHumansLongitudinal StudiesMalePediatric ObesityPhysical FitnessSex DistributionSexual MaturationSleep

Identifiers

PMID25896064

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.