The Association of the Medical Research Council Scale and Quantitative Computerized Dynamometry in Patients After Critical Illness: An Exploratory Study
Bibliographic record
Abstract
Purpose: The purpose of this study was to determine the association between isometric peak torque obtained using the Biodex dynamometer (gold standard) to the Medical Research Council (MRC) scale for knee extension (KE), ankle dorsiflexion (DF), and shoulder flexion (SF) in patients after intensive care unit (ICU) discharge. Methods: A cross-sectional observational substudy was conducted. Adults with at least 7 days of mechanical ventilation were recruited from a parent study of outcomes after critical illness. Muscle strength of KE, DF, and SF was measured using the MRC scale (grades 0–5) and the Biodex dynamometer (peak torque, % predicted) at 3 months post-ICU discharge. Results: Twenty participants were included in the study. The median and interquartile ranges for MRC scores for KE, DF, and SF were 4.5 (IQR = 1), 4.5 (IQR = 1), 4.0 (IQR = 1), respectively. No significant correlations were found between isometric peak torque and MRC scores for any muscle group at 3 months post-ICU discharge. Conclusion: Medical Research Council scale may be limited in the ability to detect muscle weakness post-ICU discharge. Quantitative dynamometry is recommended in the post-ICU period to identify individuals with muscle weakness who may benefit from physical rehabilitation.
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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 | 0.006 | 0.006 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.002 |
| 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".