Effects Of A Physician-Based Exercise Counseling Program For Improving Aerobic Fitness In Older Adults
Bibliographic record
Abstract
Unequivocal evidence supports healthy lifestyles for cardiovascular disease prevention. Family physicians are ideally positioned to address this care gap. PURPOSE: To determine the impact of an exercise prescription for older sedentary adults in family practice. METHODS: The Step Test Exercise Prescription (STEP) was a 12 month trial with 360 older adults (50-85 years) from 40 family practices in four regions of Canada. Intervention physicians were trained to deliver a tailored exercise prescription and transtheoretical behavior change counseling program. Control physicians were trained to deliver the exercise prescription alone. Primary outcome measures were cardiorespiratory fitness (VO2max) and energy expenditure (7-day PAR). RESULTS: Participants (intervention, n=193; control, n=167) were healthy community men (48%) and women (52%) with a mean age of 64.9 ±7.1 years. In both groups, VO2max significantly increased (p<0.001) for the intervention (+2.88 ±4.22 ml·kg-1·min-1) and control (+2.56 ±5.20 ml·kg-1·min-1) at 12 months, however there was no difference between groups. Women in the intervention improved their fitness significantly higher than control (+2.99 ±4.38 ml·kg-1·min-1). The intervention group had a 4mmHg reduction in systolic blood pressure (0.4 mmHg in the control (p<0.001)). The mean energy expended (EE) significantly increased but was higher in the intervention vs control (69.06 ±169.87 vs -6.96 ±157.06 Kcal·d-1). There were no significant practice setting differences among the primary outcomes. CONCLUSIONS: STEP exercise and behavioral intervention improved fitness, activity and lowered systolic blood pressure across a range of Canadian practices. Women showed higher levels of fitness than control while men showed similar improvement in both groups. This trial was registered by UWO ethics on September 24, 2003. REB#E7247 entitled: Improving exercise prescription among Canadian family physicians
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| 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".