The Acute Affect of an Exercise Intervention on Arterial Compliance in Hospitalized Antenatal Women
Bibliographic record
Abstract
Activity restriction is often involved in clinical care for high-risk pregnancy, yet there has been virtually no regard for the negative consequences to maternal health. For this population, light-moderate resistance exercise is a promising option for prevention or alleviation of the physiological deconditioning known to occur during activity restriction, however the effect of the intervention on those systems involved in maternal adaptation to pregnancy must be examined prior to implementation. PURPOSE: To determine the acute effect of a light-moderate resistance exercise stimulus on arterial stiffness and wave reflections in hospitalized antenatal women. A secondary objective was to quantify activity restriction in this population. METHODS: A group of 11 women hospitalized for complications in the third trimester of pregnancy participated in a music (M) and music + exercise (ME) intervention. Pulsewaves acquired by applanation tonometry before and after each intervention were analyzed to calculate augmentation index (AIx) and pulse wave velocity (PWV) as measurements of stiffness and wave reflection, respectively. For quantification of activity restriction, daily pedometer records were compared to a group of sedentary, ambulatory women in the third trimester of pregnancy. RESULTS: Pre and post ME AIx was −29.1 ± 3.9 and −21. 8 ± 3.1, respectively. PWV was 4.9 ± 0.2 pre ME and 5.2 ± 0.2 post ME. There were no significant differences in any variables between pre and post M and ME interventions. Hospitalized pregnant women prescribed strict-bed rest (n = 6) took an average of 378.0 ± 121.3 steps per day, 94 percent less than sedentary ambulatory pregnant women in the third trimester (p < 0.05), with an average duration of 36 days. Hospitalized antenatal women not prescribed bed-rest (n = 5) took an average of 1537.0 ± 267.1 steps per day; 74 percent less than sedentary ambulatory pregnant women in the third trimester (p< 0.05), with an average duration of 40.2 days. CONCLUSION: These data suggest that activity restriction in hospitalized antenatal women is considerable, with or without a recommendation for bed-rest and that a light-moderate resistance exercise intervention does not have an adverse affect on arterial mechanics in high-risk antenatal women.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".