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Exact(7)
The method calculated the mean squared of motion vectors in each frame and obtained the motion curve.
This convergence condition can also be expressed as the mean squared of relative transition differences: H_{t}=N^{-1}sumlimits_{i=1}^{N}(h_{it}-1)^{2} (3).
We used the software CarTool (http://brainmapping.unige.ch/Cartool.htm) to normalise topographies from our four conditions by global field power (GFP) – the root mean squared of the voltage across the average-referenced electrodes – and to perform all topographical analyses.
χ = Chi-square; df = degrees of freedom; RMSEA = root mean square error of approximation; CFI = confirmatory fit index; SRMR = standardized root mean squared of the residuals.
When assessing associations between pollutants and measures of HRV, decreases in the root mean squared of successive deviations in NN intervals (rMSSD) were observed, with the greatest reduction (4.4 % decrease) associated with PM2.5 EC (Table 5).
Time- and frequency-domain indices of the standard deviation of the NN intervals (SDNN), root mean squared of successive deviations in NN intervals (rMSSD), high frequency (HF) (0.15-0.40 Hz), low frequency (LF) (0.04-0.15 Hz), LF HF, and heart rate (HR) were obtained.
Similar(53)
The first one is the root-mean-square-of-successive-differences (RMSSD) of the inter beat intervals.
Mean square of within subject.
Mean square of between subject.
Root mean square of successive differences.
The root mean square of difference of consecutive interbeat intervals.
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