![]() ![]() ![]() The stress response is modulated by the sympathetic nervous system (SNS) and parasympathetic nervous system (PNS). Stress, as a survival mechanism, is normal and healthy: stress allows the body to generate more energy to deal with a potential threat. adults report such high levels of daily stress that they are not able to function properly ( 2). The results indicate that the Apple Watch ECG cannot be used for quantifying stress with traditional statistical methods, although future directions of research (e.g., use of additional parameters and Machine Learning) could potentially improve stress quantification with the device.Īccording to the WHO, stress is the “Health Epidemic of the 21st Century” ( 1). ![]() Spearman correlation found very weak correlations ( p < 0.05) between several HRV features and each questionnaire. Repeated measures ANOVA tests did not find any statistical significance. Heart rate variability (HRV) features from the ECG were extracted and analyzed against self-reported stress questionnaires based on the DASS-21 questionnaire and a single-item LIKERT-type scale. Here we collected ECG data using the Apple Watch from 36 health participants during their daily routines. Interestingly, ECG data can be used to derive Heart Rate Variability (HRV) features commonly used in the identification of stress, suggesting that the Apple Watch ECG app could potentially be utilized as a simple, cost-effective, and minimally invasive tool to monitor individual stress levels. A novel electrocardiogram (ECG) feature has recently been introduced to the Apple Watch device. ![]() However, wearable smart technologies offer a novel strategy to continuously and non-invasively collect objective health data in the real-world. Traditional methods of stress measurement and monitoring typically relies on self-reporting. Chronic stress has become an epidemic with negative health risks including cardiovascular disease, hypertension, and diabetes. ![]()
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