Efeito protetor da atividade física nos sintomas depressivos em idosos: Revisão Sistemática e Meta-Análise
Bibliographic record
Abstract
Introduction: Population aging and high life expectancy are a problem in current times, with increasing importance being given to maintaining a good quality of life during aging, including not only physical aspects, but also mental health.Depression is an important mental health problem in the elderly, which often goes by untreated, or is treated only with medication.Physical activity has been gradually gaining importance, not only as a form of treatment, but also as prevention for this type of symptoms.However, physical activity has not yet been consistently established in protocols for the prevention of depressive symptoms.Thus, to synthetize the findings in longitudinal studies, we proposed to write a systematic review and meta-analysis, in order to verify if physical activity prevents depressive symptoms in the elderly, and what are the best physical activity levels to achieve this effect.Methods: Potential studies were searched on Pubmed, Scopus and Ebsco between January the 13 th and the 27 th of 2021.Demographic data, data on physical activity and depressive symptoms assessment, and odds ratio with 95% confidence intervals were extracted.Random-effects meta-analysis and a sensitivity analysis were conducted, and the potential sources of heterogeneity were explored using Open Meta-Analyst.Study quality was assessed using the Newcastle-Ottawa Scale.Results: From 2812 studies found, a total of 12 prospective studies were eligible for data extraction, with a total sample of 3987 participants.We found that those engaged in physical activity had lower odds of developing depressive symptoms (OR=0.69,95% CI=0.59, 0.81, p<0.01;I=69.95%) in the long term when compared to inactive participants or those with low physical activity.On the other hand, we also found that moderate physical activity levels (OR=0.51,95% CI=0.33, 0.79, p<0.01;I=0%) seem to be more effective in reducing the odds having depressive symptoms than high levels (OR=0.43,95% CI=0.18, 1.04, p=0.06;I=75.98%,Heterogeneity p value=0.02).Despite this, heterogeneity was high, however the use of valid physical activity questionnaires, moderate level of VII physical activity and studies in East asian culture were of non-significant heterogeneity. Conclusion:The results suggest that being active reduces the odds of developing depressive symptoms in the elderly, so the development and promotion of regular PA programs in this population are of vital importance in preventing this increasingly common disorder.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.004 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".