Recreational physical activity energy expenditure estimated from self-reported past-year activity in adults participating in The Tomorrow Project®.
Bibliographic record
Abstract
B70 Exercise associated energy expenditure (EE) of about 150 to 400 kcal/day has been recommended to prevent chronic diseases. Based on physical activity level (PAL=total energy expenditure (TEE)/basal metabolic rate), recommendations have also been made to achieve a minimum PAL of 1.4. Whether or not Canadians are successful in meeting these target levels of activity and the types of activities that they are participating in to do so, have not been sufficiently described. We estimated EE associated with recreational physical activity reported by normal weight (BMI≥18.5 and Tomorrow Project® participants in Alberta, aged 35 to 69 years, enrolled between 2001 and 2005. Detailed recreational activities at baseline were ascertained using the validated self-administered Past-Year Total Physical Activity Questionnaire . 189 reported recreational activities were grouped into nine categories: walking, bicycling, golf, swimming, fishing, outdoor sports, skill based sports, gym based activity and ‘other’. Total MET-hours/week, from recreational, occupational, transportation and household activity, were calculated to classify men (n=1,376) and women (n=3,741) who reported recreational activity into tertiles of activity: >203 MET-hours/week, >142 and ≤203 MET-hours/week and ≤142 MET-hours/week for men; and >182 MET-hours/week, >129 and ≤182 MET-hours/week and ≤129 MET-hours/week for women. More men participated in walking (60%), outdoor sports (59%) and skill-based sports (37%) than in other activities, while more women participated in walking (81%), gym-based activity (56%) and outdoor sports (49%). In men, means for recreational activity EE ranged from 273 to 442 kcal/day across tertiles of activity and mean PALs ranged from 1.49 (SD=0.12) to 2.24 (SD=0.27). Among women, means for recreational activity EE ranged from 168 to 354 kcal/day across tertiles and means for PAL ranged from 1.50 (SD=0.10) to 2.15 (SD=0.27). Estimated PAL and recreational activity EE indicate normal weight Tomorrow Project® participants who report recreational activity are achieving the minimum recommended levels of physical activity.
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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 | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.000 | 0.000 |
| 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; 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".