Table 1 Baseline values and effects of study interventions on iPPG’s Perfusion Index (PI), Laser Speckle Flux (Flux) and Reference PPG Perfusion Index (reference-PI).

From: Association of remote imaging photoplethysmography and cutaneous perfusion in volunteers

 

Baseline

Stroop congr

Stroop incongr

Recovery

Heat 1

Heat 2

PI

0.0055 ± 0.0016

0.0058* ± 0.0016

0.0059* ± 0.0019

0.0057 ± 0.0019

0.006* ± 0.0017

0.0061*± 0.0017

Flux

272.2 ± 60.7

276.2 ± 64.9

279.0 ± 70.1

277.2 ± 67.9

295.3* ± 81.7

297.7* ± 75.8

rPI

0.0034 ± 0.0018

0.0037 ± 0.002

0.0034 ± 0.0015

0.0034 ± 0.0016

0.0047* ± 0.0015

0.0049* ± 0.0015

  1. Values are given as mean ± standard deviation. *p < 0.05 versus baseline.