Static postural stability as a new objective measure to understand how exercise rehabilitation programs improve Parkinson's disease
Bibliographic record
Abstract
The Sensory Attention Focused Exercise (PD SAFEx) program has previously been shown to be an effective intervention for reducing the motor symptoms (UPDRS III scores) of Parkinson’s disease (PD). Although the UPDRS III is considered to be the gold standard for the assessment of disease severity in PD, exercise interventions may provide benefits that the clinician-based subjective UPDRS III cannot detect. The aim of this study was to use objective measures to determine if a 12 week, 36 session PD SAFEx program improved postural stability in PD patients. Subjects (n=36) stood with feet shoulder width apart, in quiet stance, under two conditions (i) eyes open, and (ii) eyes closed. Total path length and mean velocity of a centre of mass estimate (COMe) were used as outcome measures. In addition to the anticipated UPDRS III improvements, subjects significantly reduced their total COMe path length in both the eyes open [f(1,35)=8.67, p<.01], and eyes closed [f(1,35)=4.82, p<.05] conditions at post test. Mean velocity of the COMe was also significantly reduced in both eyes open [f(1,35)=8.44, p<.01], and eyes closed [f(1,35)=5.30, p<.05] conditions. These improvements indicate a greater ability to maintain stable posture in quiet stance as a result of the intervention.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| 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 source (direct Gemma or distilled Codex), 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".