P2‐538: VALIDITY OF PHYSICAL ACTIVITY SCALE FOR THE ELDERLY AMONG PEOPLE WITH MCI OR MILD DEMENTIA
Bibliographic record
Abstract
The Physical Activity Scale for the Elderly (PASE) is one of the more common physical activity questionnaires used to report physical activity levels of older adults, and is used among older adults with cognitive impairment. It has been validated against energy expenditure and accelerometer measures of physical activity among a variety of groups. However, it has not been validated for use among people with mild cognitive impairment (MCI) or mild dementia, even though it is used in this population. We enrolled 28 older adults (≥50 years) to a randomized parallel-group trial of center-based versus home-based exercise. Participants were diagnosed with MCI or mild dementia (MoCA≥17 or MMSE≥22), were safe to exercise, and were currently exercising ≤2x/wk. At baseline, participants reported physical activity levels using the PASE and had physical activity assessed using an accelerometer (Actigraph GT3x+) over 7 days. Physical function was assessed using the 6-min walk, 5x sit-stand, and gait speed. Spearman's rank correlation coefficient (rs) was calculated between PASE scores and accelerometer (% time in moderate-vigorous physical activity [MVPA], step count) and physical function scores. Participants’ average age (SD) was 75.5 (8.2) years and education was 15.0 (3.5) years; they were 18% (n=5) female. There were no significant relationships between the PASE score and either accelerometer scores (% time in moderate-vigorous physical activity, step count) or physical function (sit-stand, 6min walk, gait speed) (p>0.07). However, rs were in the expected direction. Non-significant, positive rs occurred between PASE score and % MVPA (rs=0.31, p=0.13), step count (rs=0.30, p=0.14), and 6-min walk time (rs=0.23, p=0.16). Negative rs occurred between PASE score and gait speed (rs=-0.34, p=0.06). Our results are insufficient to support the validation of the PASE of among individuals with MCI or mild dementia. Further work is needed to support use of the PASE in this group. With additional participants enrolled to the trial through late 2018, it is possible that the expanded sample will clarify the validity of the PASE in this population.
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.
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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".