The effects of aerobic exercise on cardiometabolic health in postmenopausal females: A systematic review and meta-analysis of randomized controlled trials
Bibliographic record
Abstract
Background: After menopause, reductions in ovarian hormones increase the risk of cardiovascular disease. Aerobic exercise training has been shown to reduce cardiovascular risk in older adults, but its effectiveness in postmenopausal females is less definitive. Objectives: The objectives of this study were to examine the: (1) effects of aerobic training, and (2) association between aerobic training intensity and cardiometabolic health outcomes in postmenopausal females. Design: Systematic review and meta-analysis of randomized controlled trials. Data Sources and Methods: Six electronic databases were searched from inception to July 21, 2023 for aerobic training interventions reporting cardiometabolic outcomes in postmenopausal females. Data were synthesized qualitatively and random-effects meta-analyses and subgroup analyses (light, moderate, and vigorous intensity) were performed. Grading of Recommendations, Assessment, Development and Evaluation was used to assess the certainty of evidence. Results: Fifty-nine studies ( n = 4,225; 45–78 years old) were identified, 53 ( n = 3,821) were included in the quantitative analyses. Aerobic training interventions varied in frequency (3–21×/week), intensity, type, time (8–60 min/session), and duration (3–52 weeks). Aerobic training improved systolic blood pressure (mean difference (MD) = −4.41 mmHg, 95% confidence interval (95%CI) [−7.29, −1.52], p = 0.01), resting heart rate (MD = −3.08 bpm, 95%CI [−5.11, −1.05], p < 0.01), body mass index (BMI, MD = −0.65 kg/m 2 , 95%CI [−0.99, −0.31], p < 0.01), waist circumference (MD = −2.03 cm, 95%CI [−2.65, −1.41], p < 0.01), body fat (MD = −2.57 kg, 95%CI [−3.65, −1.49], p < 0.01), low-density lipoprotein cholesterol (MD = −10.46 mg/dL, 95%CI [−16.31, −4.61], p < 0.01), high-density lipoprotein cholesterol (MD = 3.28 mg/dL, 95%CI [0.20, 6.36], p = 0.04) and cardiorespiratory fitness (standardized MD = 1.38, 95%CI [1.13, 1.64], p < 0.01). There was a very low certainty of evidence for all outcomes. In subgroup analyses, light- and vigorous intensities were beneficial for BMI with no effect for moderate-intensity exercise ( p < 0.01). Light intensity showed a beneficial effect ( p = 0.02) for glucose levels ( p < 0.01) and triglycerides; there was no effect with moderate or vigorous intensities. Conclusion: Aerobic training may improve cardiometabolic health outcomes in postmenopausal females. There may be differential effects of exercise intensity on BMI, blood triglycerides, and blood glucose; however, this warrants further investigation. Registration: PROSPERO—CRD42022313350
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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 | 0.062 | 0.006 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.203 | 0.023 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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; both teacher heads agree on what is shown here.
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".