Effects of exercise on sleep in children with overweight/obesity: A randomized clinical trial
Bibliographic record
Abstract
Abstract Objectives To examine 1) the chronic effects of a 20-week physical exercise program on device-assessed sleep and on sleep-disordered breathing (SDB); and 2) whether attending to a session of the exercise program had effects on device-assessed sleep the subsequent night in children with overweight/obesity. Methods A total of 99 children with overweight/obesity (n=47 in the exercise group) participated in this secondary analysis of the ActiveBrains randomized clinical trial. The exercise program included a combination of aerobic and resistance exercise training, 3-5 days/week (90 min/session). The control group was asked to maintain usual lifestyle. Sleep outcomes were measured using wrist actigraphy and included: total sleep time, total time in bed, sleep efficiency, and wake after sleep onset (WASO) time. SDB was assessed via the Paediatric Sleep Questionnaire. Results The ActiveBrains exercise program had a statistically significant effect on WASO time (−10.8 min/day, -0.5 standard deviations (SD), P =0.040). Furthermore, we observed a small non-statistically significant effect on sleep efficiency (+2%, 0.4 SD, P =0.1). No other chronic effects were observed on the other sleep outcomes. The nights (at maximum of 4) after attending the ActiveBrains exercise sessions, children showed higher total sleep time (+8 min, P =0.17), sleep efficiency (+1%, P =0.15), and lower WASO time (−6 min, P =0.18) although did not reach statistical significance. Conclusion A 20-week physical exercise program reduced WASO time in children with overweight/obesity in comparison with control group peers, yet we did not observe effects on SDB. Future randomized trials that include a clinical sample of children with poor sleep health at baseline are needed to better appreciate the role of exercise in sleep health. Clinal Trial Registration The ActiveBrains project is registered at ClinicalTrials.gov , no. NCT02295072 . Data Sharing Statement: We did not obtain children’s parents consent to widely share the data nor was it included in the IRB protocol. What’s known on this subject Sleep is an essential component in children’s health. Previous researchers have found positive effects of exercise on sleep in adolescents with obesity, but the literature in childhood obesity is lacking. What this study adds A physical exercise program showed positive effects on device-assessed sleep habits in children with overweight/obesity, yet not on sleep-disordered breathing. Exercise programs should be promoted in children to improve their sleep health, especially in those with overweight/obesity.
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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 | 0.002 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.002 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.006 | 0.001 |
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".