Independence: A New Reason for Recommending Regular Exercise to Your Patients
Bibliographic record
Abstract
There are many good reasons to advise regular and adequate physical activity: longevity seems extended by up to 2 years, and the risk of a wide range of chronic disorders is substantially reduced. However, from the viewpoint of the overall, quality-adjusted lifespan, perhaps the most important reason is the ability of physical activity to counter the relentless, age-related decrease in physical capacity (maximal aerobic power, muscle strength, flexibility, and balance). The case is detailed for maximal aerobic power, which deteriorates by about 5 mL/ [kg x min] for each decade of adult life. Independence is generally at risk when the maximal oxygen intake has dropped to 18 mL/ [kg x min] in men and 15 mL/ [kg x min] in women. A sedentary person typically reaches this threshold between 80 and 85 years old. However, regular physical activity can augment maximal oxygen transport by 5 to 10 mL/ [kg x min], setting back the need for institutional support by 10 to 20 years.
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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 | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.004 |
| Insufficient payload (model declined to judge) | 0.010 | 0.007 |
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".