Now showing items 1-6 of 6

    • Analysis of gender differences in hrv of patients with myalgic encephalomyelitis/chronic fatigue syndrome using mobile-health technology 

      Capdevila Ortis, Lluís; Castro Marreno, Jesús; Alegre Martín, José; Ramos Castro, Juan José; Escorihuela, Rosa María (Multidisciplinary Digital Publishing Institute (MDPI), 2021-05-28)
      Article
      Open Access
      In a previous study using mobile-health technology (mHealth), we reported a robust association between chronic fatigue symptoms and heart rate variability (HRV) in female patients with myalgic encephalomyelitis/chronic ...
    • Assessment of energy expended in physical activity by a smartphone-based system 

      Guede Fernández, Federico; Carbones Fargas, Bernat; Capdevila Ortis, Lluís; García González, Miguel Ángel; Ramos Castro, Juan José; Fernández Chimeno, Mireya (Springer, 2014)
      Conference report
      Restricted access - publisher's policy
      The aim of this paper is to present a smartphone based system to assess daily energy expended in physical activ- ity (PA). Nowadays, sedentary li festyle is increasingly recog- nized as a serious, worldwide public ...
    • Comparison of omega wave system and polar S810i to detect R-R intervals at rest 

      Parrado Romero, Eva; García González, Miguel Ángel; Ramos Castro, Juan José; Cervantes Blasquez, Julio Cesar; Rodas Font, Gil; Capdevila Ortis, Lluís (2010)
      Article
      Restricted access - publisher's policy
      The present study was performed to compare R-R interval data and heart rate variability indices obtained from the Polar S810i and the Omega Wave Sport System for a total of 96 adults in a supine position. Data were ...
    • Facial video-based photoplethysmography to detect HRV at rest 

      Moreno Sánchez, Jordi; Ramos Castro, Juan José; Movellan, J; Parrado Romero, Eva; Rodas Font, Gil; Capdevila Ortis, Lluís (2015-06-01)
      Article
      Restricted access - publisher's policy
      Our aim is to demonstrate the usefulness of photoplethysmography (PPG) for analyzing heart rate variability (HRV) using a standard 5-min test at rest with paced breathing, comparing the results with real RR intervals and ...
    • Resonance frequency is not always stable over time and could be related to the inter-beat interval 

      Capdevila Ortis, Lluís; Parrado Romero, Eva; Ramos Castro, Juan José; Zapata Lamana, Rafael; Lalanza, Jaume F. (Nature, 2021-04-16)
      Article
      Open Access
      Heart Rate Variability Biofeedback (HRVB) is based on breathing at an optimal rate (or resonance frequency, RF) corresponding to the respiratory sinus arrhythmia (RSA). Our aim is to check whether the RF is a stable factor ...
    • Using smartphone bases biodevices for analyzing physiological, psychological and behavioral user’s habits 

      Guede Fernández, Federico; Pous Solà, Marc; García González, Miguel Ángel; Capdevila Ortis, Lluís; Ramos Castro, Juan José; Fernández Chimeno, Mireya (SciTePress, 2013)
      Conference lecture
      Open Access
      As a consequence of increasing life expectancy, the promotion of lifestyles that allow aging wellbeing guarantees has acquired great importance in the developed countries. However, the adherence to healthy behaviors in ...