Season of Birth and Variations in Stature, Body Mass, and Performance
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Factors influencing the growth of stature, body mass, and physical performance have been examined in a sample of 546 children participating in the Trois-Rivieres regional study of growth and development (2095 anthropometric observations, 3993 performance test measurements). Subjects were sub-divided into approximately equal-sized subgroups on the basis of sex, milieu (urban or rural-industrial) and program (control, receiving normal 40 min of physical education per week, and experimental, receiving a nominal 5 hr of specialized physical education per week). Grouping anthropometric data by birthdate and thus season of testing, stature deviated by some 0.8 cm about mean annual values, growth being least for children having birthdays in the period April-June; such differences were about twice as large in the group receiving enhanced physical education as in the control series.Body mass, similarly grouped, deviated by about 0.6-0.7 kg about mean annual values. Skinfold readings did not change, suggesting the variation of mass occurred in lean tissue. The alteration of mass was of the order predicted from changes in stature, although height/weight loops showed some hysteresis, particularly in control subjects. Scores for all 6 CAHPER (Canadian Association for Health, Physical Education and Recreation) performance tests improved from October to June, and deteriorated from June to October. Assuming the birthdate anthropometric measurements reflect seasonal variations in the growth of our entire sample of children, the performance changes are the opposite of what would be predicted from dimensional theory. It is thus suggested that the school physical education program may have a specific, influence upon performance. Seasonal differences of CAHPER test scores were twice as large as normal in those students who received the enhanced program of physical education.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 | 0.000 |
| 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 | 0.000 | 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 it