Health-Related Fitness, Physical Activity, and History of Back Pain
Bibliographic record
Abstract
The relationship between history of back pain and measurements of both health-related fitness and physical activity participation was examined in 233 males and 287 females aged 15-69 years. Participants were divided by gender into those reporting no history (NH) or a history (H) of recurring back pain. Analysis of variance indicated that trunk flexion, back extensor endurance, and physical activity participation were significantly higher for NH and waist girth significantly lower for NH in both genders. In females, mean abdominal muscular endurance was significantly higher in NH. Forward stepwise discriminant function analyses indicated that the best discriminators between NH and H were back extensor endurance and physical activity participation in both genders and waist girth in females. These findings support using measurements of trunk flexion, abdominal muscular endurance, back extensor endurance, physical activity participation, and waist girth as indicators of back fitness in the evaluation of back health.
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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 | 0.000 | 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) | 0.001 | 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".