Effects of Maternal Exercise Intensity on Neonatal Morphometrics
Bibliographic record
Abstract
PURPOSE: To examine the relationship between maternal exercise intensity and neonatal morphometrics. METHODS: At 16 – 20 weeks gestation healthy pregnant women were divided into either mild (30%VO2peak; N=108) or moderate (70%VO2peak; N=44) exercise programs in which they participated three times per week from study entry until delivery. Within 6 to 18 hours after birth neonatal morphometrics were measured: body weight, skinfolds: umbilical, suprailiac, subscapular, anterior thigh, biceps, triceps, circumferences: head, arm, mid-thigh, calf, chest, abdominal; and crown-heel, crown-rump, arm, forearm, thigh and leg lengths. Neonatal total fat mass was calculated (Dauncey et al. Arch Dis Child 3:223–227, 1977). RESULTS: Neonatal body weight was not different between programs (3523 ± 48g, 3566 ± 63g, respectively). Conversely, total fat mass was higher P<0.05 in the neonates of mildly exercising women (961 ± 42g vs 797 ± 63g, respectively). Additionally, anthropometric measurements, suprailiac, triceps and subscapular skinfolds, arm length and volume of fat upper limb were significantly higher (P<0.05) for the mild exercise program compared to the moderate exercise program. In both programs volume of fat on the lower limb had the highest correlation with total fat mass. Stepwise multiple regression analysis using total fat mass (g) as the criterion for neonatal fat patterning selected volume of fat on lower limb (R2= 0.62) and volume of fat on trunk (R2 change = 0.35) for the mild exercise program and triceps skinfold (R2 = 0.81) and volume of fat on lower limb (R2 change = 0.12) for the moderate exercise program. CONCLUSION: The results suggest that both the mild and moderate maternal exercise programs do not influence neonatal body weight. Although total fat mass was significantly higher for the mild exercise program, the variance in total fat mass was not due to exercise intensity per se but to the maternal BMI, as 67% of the mild exercising women had a BMI ≥ 25, with 45% of those women being in the obese range BMI ≥ 30, whereas only 12% had a BMI ≥ 25 in the moderate exercise program. No birth complications were recorded. Supported by: Molly Towell Research Foundation; Canadian Forces Personnel Support Agency; CIHR-IAPH.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".