Heart rate variability (HRV) analysis is a noninvasive tool widely used to assess autonomic
nervous system state. The market for wearable devices that measure the heart rate has …

Abstract Hernando, D, Garatachea, N, Almeida, R, Casajús, JA, and Bailón, R. Validation of
heart rate monitor Polar RS800 for heart rate variability analysis during exercise. J Strength …

In their article, Costa-Santos et al.[1] provide a valuable example about the difficulties in
comparing and interpreting reliability and agreement coefficients arising from the same …

Background Public web-based COVID-19 dashboards are in use worldwide to communicate
pandemic-related information. Actionability of dashboards, as a predictor of their potential …

Background: The “Quality of Recovery 15” questionnaire is used for the study of quality
recovery after anesthesia. The aim of this study was to validate the Portuguese version of …

Abstract Evaluation of foetal heart rate (FHR) variability is an essential part of foetal
monitoring, but a precise quantification of this parameter depends on the quality of the …

Background Mobility limitations in older adults are associated with poor clinical outcomes
including higher mortality and disability rates. A decline in mobility (including physical …

The Transparency and Openness Promotion (TOP) Guidelines describe modular standards
that journals can adopt to promote open science. The TOP Factor quantifies the extent to …

Purpose Patient-reported outcomes after surgery and anaesthesia have recently attracted
attention. A recent systematic review and a consensus guideline recommend that patients' …

Purpose Evaluation of maternal heart rate (MHR) variability provides useful information on
the maternal-fetal clinical state. Electrocardiography (ECG) is the most accurate method to …