• Press Release

Mount Sinai Researchers Use Wearable Devices to Identify Psychological Effects of Pandemic

Study links changes in heart rate variability with degree of resilience, as part of larger effort to understand and mitigate the effects of COVID-19 on health care workers

  • New York, NY
  • (September 13, 2021)

Health care workers with high resilience or strong emotional support were protected against the effects of stress related to the COVID-19 pandemic compared to those who had low emotional support or resilience, according to a study published September 13 in the Journal of Medical Internet Research. Mount Sinai researchers also found that the number of individuals with COVID-19 in the community was a significant factor associated with stress in health care workers over time.

The Mount Sinai team found that high emotional support or high resilience—the ability to overcome difficulty and a reduced vulnerability to environmental stressors—resulted in a unique nervous system profile, demonstrating that these features impact both how health care workers perceive stress and how their bodies are physically affected by stress.

“Our study highlights the importance of emotional support and resilience in moderating the effects of stress on health care workers during the ongoing pandemic,” said the study’s corresponding author Robert P. Hirten, MD, Assistant Professor of Medicine (Gastroenterology) at the Icahn School of Medicine at Mount Sinai, and member of the Hasso Plattner Institute for Digital Health at Mount Sinai and the Mount Sinai Clinical Intelligence Center (MSCIC). “Assessing the resilience and emotional support of health care workers may be able to help identify those at risk from ongoing stressors and may help guide health care institutions in allocating mental health resources for these at-risk employees.”

Several hundred study participants wore an Apple Watch that measured their heart rate variability and downloaded a customized app to complete weekly surveys measuring perceived stress, resilience, emotional support, quality of life, and optimism. Researchers found that health care workers with high resilience or high emotional support had different autonomic nervous system stress patterns compared with those who had medium or low emotional support or resilience. The autonomic nervous system is a primary component of the stress response and can be found by measuring heart rate variability. The participants’ physiological results aligned with their self-reported answers, the study concluded.

“The experience of this pandemic has been especially stressful for health care workers, and as a community we need to be able to support them, especially as the virus persists,” said the study’s co-author Zahi Fayad, PhD, Director of the BioMedical Engineering and Imaging Institute, Co-Founder of the MSCIC, and the Lucy G. Moses Professor of Medical Imaging and Bioengineering at Icahn Mount Sinai. “Our study is one of the first to document not only the toll the pandemic has taken on our health care workers, but also the importance of resilience and social support as specific paths toward efficiently and effectively directing support.”

The latest findings from the Warrior Watch Study build on previous research that used wearable devices to identify COVID-19 cases earlier than traditional diagnostic methods. Researchers monitored the participant’s physical activity and tracked subtle changes in their heart rate variability measured by an Apple Watch, which signaled the onset of COVID-19 up to seven days before the individual was diagnosed with the infection via nasal swab.


About the Mount Sinai Health System

The Mount Sinai Health System is New York City's largest academic medical system, encompassing eight hospitals, a leading medical school, and a vast network of ambulatory practices throughout the greater New York region. Mount Sinai advances medicine and health through unrivaled education and translational research and discovery to deliver care that is the safest, highest-quality, most accessible and equitable, and the best value of any health system in the nation. The Health System includes approximately 7,300 primary and specialty care physicians; 13 joint-venture ambulatory surgery centers; more than 415 ambulatory practices throughout the five boroughs of New York City, Westchester, Long Island, and Florida; and more than 30 affiliated community health centers. The Mount Sinai Hospital is ranked on U.S. News & World Report's "Honor Roll" of the top 20 U.S. hospitals and is top in the nation by specialty: No. 1 in Geriatrics and top 20 in Cardiology/Heart Surgery, Diabetes/Endocrinology, Gastroenterology/GI Surgery, Neurology/Neurosurgery, Orthopedics, Pulmonology/Lung Surgery, Rehabilitation, and Urology. New York Eye and Ear Infirmary of Mount Sinai is ranked No. 12 in Ophthalmology. Mount Sinai Kravis Children's Hospital is ranked in U.S. News & World Report’s “Best Children’s Hospitals” among the country’s best in four out of 10 pediatric specialties. The Icahn School of Medicine is one of three medical schools that have earned distinction by multiple indicators: ranked in the top 20 by U.S. News & World Report's "Best Medical Schools," aligned with a U.S. News & World Report "Honor Roll" Hospital, and No. 14 in the nation for National Institutes of Health funding. Newsweek’s “The World’s Best Smart Hospitals” ranks The Mount Sinai Hospital as No. 1 in New York and in the top five globally, and Mount Sinai Morningside in the top 20 globally.

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