Confiabilidade de dispositivo monitorizador SMARTBAND para avaliação dos sinais vitais no teste do degrau de seis minutos.

Abstract

A (im) possibilidade de desclassificação do crime de estupro de vulnerável sob a ótica da Context and Objectives: Advances in health technology have facilitated the utilization of devices such as smartbands for monitoring physiological parameters. However, uncertainties persist regarding their reliability, accuracy, and the validation of associated algorithms. This study aimed to evaluate the reliability of vital sign measurements in healthy individuals using a smartband compared to a pulse oximeter before and after conducting the Six Minute Step Test (6MST). Methods: A comparative analysis of heart rate (HR) and peripheral oxygen saturation (SpO2) was conducted using a pulse oximeter and the MI BAND 6 smartband before and immediately after the 6-minute step test. Repeated-measures analysis of variance with Greenhouse-Geisser sphericity correction assessed the outcomes at the evaluated time points. Cohen's d was used to measure the effect size. Agreement between HR and SpO2 measurements for the two methods was assessed using one-sample t-tests and depicted in Bland-Altman plots (p≤0.05). Results: Monitoring HR and SpO2 with the smartband and oximeter before and immediately after the 6MST revealed differences in the measured scores (p≤0.017), suggesting a lack of agreement between the measured outcomes, with higher values observed when assessed by the pulse oximeter. There was no significant difference in the number of steps performed compared to the predicted number (p= 0.845). Conclusion: The evaluation of vital signs before and after the Six Minute Step Test using the MI BAND 6 smartband underestimates the values obtained, raising concerns about the accuracy and reliability of this device in monitoring physiological parameters, particularly during moderate to intense exercise.