The Selection of Pretest States and Parameters in Identifying the Age Effect Through the Center of Pressure (COP) Measurement
Bibliographic record
Abstract
The COP test is a simple tool for judging balance ability. However, its reliability for fall prediction is strongly challenged by its static nature and the contradictory results published in previous studies. The inconsistencies were possible results of negligence of prestate conditions prior to measurement. In this study, we explored these prestate effects on COP by investigating 21 seniors and 28 students. The results show that by adding a dynamic pretest activity, the static COP test could detect dynamic characteristics to a certain degree. Among the three prestates—sitting, standing, and walking—inspected in this study, the best prestate for the identification of age effect is walking. The spectrum analysis determined that the body sway consists mainly of frequencies below 2 Hz, and the age difference lies in the domain of 0–0.8 Hz. Therefore, to study the sensorimotor degradation related to aging, the prestate of walking would be most effective.
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 | 0.018 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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; 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".