Aerobic Exercise Training Response in Preterm-Born Young Adults with Elevated Blood Pressure and Stage 1 Hypertension: A Randomized Clinical Trial
Bibliographic record
Abstract
Rationale: Premature birth is an independent predictor of long-term cardiovascular risk. Individuals affected are reported to have a lower rate of oxygen consumption at peak exercise intensity and at ventilatory anaerobic threshold, but little is known about their response to exercise training. Objectives: To explore if peak exercise oxygen consumption and ventilatory anaerobic threshold responses to exercise training differ between preterm-born and term-born individuals. Methods: Fifty-two preterm-born and 151 term-born participants were randomly assigned (1:1) to 16-weeks of aerobic exercise training (n=102) or a control group (n=101). Cardiopulmonary exercise tests were conducted before and after the intervention to measure oxygen consumption at peak exercise intensity and the ventilatory anaerobic threshold. A prespecified subgroup analysis was conducted by fitting an interaction term for preterm and term birth history and exercise group allocation. Measurements and Main Results: Within term-born participants, peak exercise oxygen consumption increased by 3.1 (95% confidence interval: 1.7 to 4.4)ml/kg/min and ventilatory anaerobic threshold increased by 2.3 (95% confidence interval: 0.7 to 3.8)ml/kg/min in the intervention group versus controls. Within preterm-born participants, peak exercise oxygen consumption increased by 1.8 (95% confidence interval: -0.4 to 3.9)ml/kg/min and ventilatory anaerobic threshold increased by 4.6 (95% confidence interval: 2.1 to 7.0)ml/kg/min in the intervention group versus controls. No significant interaction was observed for peak exercise oxygen consumption (p=0.32) or ventilatory anaerobic threshold (p=0.12). Conclusion: The training intervention led to significant improvements in peak exercise oxygen consumption and ventilatory anaerobic threshold, with no evidence of a statistically different response based on birth history. Clinical trial registration available at www.clinicaltrials.gov, ID: NCT02723552. This article is open access and distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/)
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.002 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.003 | 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".