Background Optical measurement techniques and recent advances in wearable technology
have made heart rate (HR) sensing simpler and more affordable. Objectives The Polar OH1 …

Background Accurate, continuous heart rate measurements are important for health
assessment, physical activity, and sporting performance, and the integration of heart rate …

Background: Physical inactivity has been identified as the fourth leading cause of death
globally. It is now well established that a sedentary lifestyle is a unique risk factor for several …

Background: Physical activity reduces the incidences of noncommunicable diseases,
obesity, and mortality, but an inactive lifestyle is becoming increasingly common. Innovative …

Uncertainty is widely acknowledged as an engaging gameplay element but rarely used in
exergames. In this research, we explore the role of uncertainty in exergames and introduce …

Background User-centered design processes are infrequently employed and not fully
explored for building mobile health (mHealth) apps that are particularly targeted to health …

Calving is a critical point in both a cow and calf's life, when both become more susceptible to
disease and risk of death. Ideally, this period is carefully monitored. In extensive grazing …

Background: Although full-body seated exercises have been studied in a wide range of
settings (ie, homes, hospitals, and daycare centers), they have rarely been converted to …

This study assessed the validity of a photoplethysmographic heart rate (HR) monitor, the
Polar OH1 in various sports performed in ecological conditions: running, cycling, soccer …

Previous studies showed that virtual reality (VR) environments can affect emotional state
and cause significant changes in physiological responses. Aside from these effects …