Is Physical Activity in Childhood Associated with Being Overweight in Adulthood?
Bibliographic record
Abstract
0073 An emerging consensus in society is that the obesity epidemic prevalent in the western world is fundamentally linked to a contemporary increase in energy intake and decrease in energy expenditure (physical activity); specifically during childhood. PURPOSE: The purpose of this study was to investigate the influence of childhood physical activity (PA) on subsequent adult body mass. METHODS: Using longitudinal data from the Saskatchewan Growth and Development Study (1964 – 1973), we assessed PA, height and body mass on 207 males (age 7 years at study entry). Subjects were categorized into activity groups (low active, average active, highly active) based on annual composite activity assessments. In order to account for maturational differences between subjects, peak height velocity was calculated and the height and body mass measurements at this common maturational point were retained for further analysis. The height and body mass measurements were used to calculate body mass index (BMI). Individual BMI was compared against BMI for age percentiles (CDC, 2000). 61 participants returned during adulthood (between 39–41 years of age) to undergo the same anthropometric measurements. RESULTS: 4 males were classified as overweight at peak height velocity, and were excluded from the one-way analysis of variance (ANOVA). The ANOVA demonstrated that childhood PA groupings were not significantly related to adult BMI (F (2,54) = F (2.84, p >0.05). As children, 57 (93.4%) were classified as normal and 4 were classified as overweight (6.6%). However, as adults 22 (36.1%) were classified as normal and 39 (63.9%) were classified as overweight. CONCLUSION: The results from this study indicate that physical activity as a child does not directly relate to the body mass achieved as an adult. The question therefore is to identify when energy intake exceeds energy expenditure during the transition from childhood to adulthood.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".