In our study, we used the Stowood device to record physiological signals (ECG, PPG and airflow) and reference vital signs (heart rate and SpO2). The pulse oximeter (Masimo, USA) probe was placed on the middle finger of the volunteer’s right hand....
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The measurement data are expressed as the mean ± standard deviation (x ± s) and compared within groups utilizing repeated measures analysis of variance and between groups with the two-samples t test. Count data are summarized as cases (n, %) and analyzed using the chi-squared ...
b. the lack of related technical and empirical evidence-based studies on high-quality randomized controlled trials, c. studies scoped on this topic use various designs, methodologies, and outcome measures, leading to heterogeneity
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The overall error for transmissive pulse oximeters must be ≤3.0% and ≤3.5% for reflective configuration. Design Considerations: Transmissive vs. Reflective A PPG signal can be obtained using a transmissive or reflective LED and PD configuration. A transmissive configuration measures the nonabsorbed ...
On the first day of evaluation, and in conjunction with body composition and hemodynamic assessment, participants completed the Performance-Oriented Mobility Assessment (i.e., POMA38), which measures balance (i.e., POMA-B, nine maneuvers graded as either normal, adaptive, or not normal and ...
国际上一般采用氢标还原电极电势，氢标电极电势的绝对值① （未知，等于零）。如果各个电极的相对电极电势采用某一个电极电势为2.0V的电极为参比，各电极电势的数值将比氢标还原电极电势的数值② V。电极电势参比的改变③ （影响，不影响）电池的电动势。
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