Seismocardiograms return valid heart rate variability indices
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
HRV indices have traditionally been acquired using interbeat intervals obtained from the electrocardiogram (ECG) R-wave. Preliminary studies have recently shown, however, that interbeat intervals obtained from seismocardiogram (SCG) isovolumic moment point return some valid HRV measurements. This presents an interesting discovery due to the recent ubiquity of affordable accelerometers of satisfactory sensitivity in mobile phones. For this purpose an orthostatic stress test of graded lower body negative pressure (LBNP) was used to compare HR V indices obtained from ECG and SCG during periods of different orthostatic stress. We conclude that estimates of interbeat intervals obtained using SCG markers are valid measurements of interbeat interval when compared with ECG and lend themselves validly to time-domain and frequency-domain HRV analysis. It is our recommendation that aortic opening SCG markers be used to obtain interbeat intervals as they represent well defined events and are obtainable without the use of ECG markers.
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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 | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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 it