International Comparison of Physical Activity Guidelines Based on the Philosophy of Public Health and Its Practical Aspects
Bibliographic record
Abstract
Through literature review,comparison and analysis,the present study researches on the physical activity guidelines from United States,Britain,Canada,Australia,China and other countries.The results show that:1)with physical inactivity becoming more and more widespread,the paradigm of health promotion has been turned from exercise-physical fitnesstophysical activity-health;2)the recommended amount and intensity of physical activity are consistent between countries,but the upper limit is still vague and in lack of scientific basis;3)physical activity guidelines in Western countries are developed for different populations,with refined guidance features,while those in Asian countries are in need of improvement;4)except the physical activity guidelines in US,most countries consider rarely the requirement of special populations or people of different occupations at present,which would be the research direction in future.It could be concluded that the theory and methods of physical activity epidemiology should be introduced into the fitness profession,so as to further increase the level of national physical fitness.
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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 | 0.015 | 0.034 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.010 | 0.015 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 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 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".