Contextualising Physical Activity Levels in Patients With Anorexia Nervosa: A Systematic Review and Meta‐Analysis
Bibliographic record
Abstract
BACKGROUND AND OBJECTIVE: Anorexia nervosa (AN) is a mental disorder most prevalent among adolescent females, with rising cases in younger and more culturally diverse populations. Unhealthy activity patterns are common and have been linked to increased relapse rates; however, data on objectively measured physical activity levels (PALs) in this population is scarce. This study aimed to examine PALs and sedentary time (ST) in patients with AN. METHODS: Following PRISMA guidelines, 16 studies met inclusion criteria (PICO strategy). Sensitivity and subgroup analyses by age and treatment phase were performed. RESULTS: Patients' mean age ranged from 12.6 to 36.2 years. Pooled mean ST was high (617.49 min/day). Light physical activity (LPA), moderate physical activity (MPA) and moderate-to-vigorous physical activity (MVPA) were higher in adult studies, while vigorous physical activity (VPA) was higher in adolescents. Steps were reported only in adult samples. CONCLUSION: This is the first systematic review and meta-analysis assessing objectively measured PALs in AN patients. Findings reveal different PALs patterns by age-group, and insufficient data by treatment stage. These results identified a critical research gap essential for future development of targeted interventions and informed strategies to support recovery.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.013 | 0.002 |
| Bibliometrics | 0.000 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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; both teacher heads agree on what is shown here.
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".