A growing body of research reports the health benefi ts of training heart rate variability (HRV), and the clinical use of HRV training protocols has increased dramatically in recent years. Many of the home training devices and many of the sophisticated biofeedback instrumentation systems rely on the blood volume pulse (BVP) sensor, or photoplethysmograph, because it is more user friendly than t...

BACKGROUND Severe and sustained emotional stress creates a physiological burden through increased sympathetic activity and higher energy demand. This may lead to increased oxidative stress and development of the metabolic syndrome. Emotional stress has been shown to contribute to the onset, progression, and control of type 2 diabetes (T2D). Stress management and biofeedback assisted relaxation ...

the aim of this research was to investigate the ability of arousal control in male and female athletes using mental imagery and biofeedback methods. participants were 30 male and female athlete students of tehran university (mean aged 23) who were assigned into two homogeneous groups based on vividness of movement imagery questionnaire 2. participants were given acoustic biofeedback during thre...