RT Journal Article
SR Electronic
T1 Validity of optoelectronic plethysmography at rest and during submaximal exercise
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP P4309
VO 44
IS Suppl 58
A1 Danielle Vieira
A1 Mariana Hoffman
A1 Danielle Gomes
A1 Raquel Britto
A1 Veronica Parreira
YR 2014
UL http://erj.ersjournals.com/content/44/Suppl_58/P4309.abstract
AB Background: Optoelectronic plethysmography (OEP) has been used in different experimental protocols, including exercise. The investigation of the validity of OEP has been performed mainly during maximal exercise. Aim and objectives: To evaluate the validity of the OEP system at rest and during submaximal exercise in heatlhy subjects. Method: Twelve subjects (6 M / 6F; 24±1 yrs) with normal lung function completed the study protocol. Participants were assessed at rest and during a 12-minute submaximal exercise protocol on a cycle ergometer. IC maneuvers were performed at rest and during exercise and were simultaneously recorded by OEP system (ICOEP) and by a spirometer (ICSP). The percentage of discrepancy between measurements, linear regression analysis and Bland-Altman analysis were used to compare measurements. The study was approved by the Institution Ethics Committee. Results: It was considered 150 IC maneuvers for analysis. The percentage of discrepancy between the measurements were -9.6 (8.6%) at rest and -4.6 (5.5%) during exercise. Regression equation at rest was ICOEP= 1.16 x (IC SPRIMOMETER) - 0.15 (R2 =0.90; p = 0.0002) and, during exercise, ICOEP= 1.01 x (IC SPRIMOMETER) + 0.10 (R2 =0.96; p = 0.0008). Figure 1 presents the results for Bland-Altman analysis during exercise . Conclusions: The results of this study demonstrate that the OEP is a valid evaluation system of healthy individuals at rest and during exercise.