Associations Between Heart Rate Variability Measured With a Wrist-Worn Sensor and Older Adults’ Physical Function: Observational Study

Sarah Anne Graham   ^{1, 2} , PhD ;   Dilip V Jeste   ^{1, 2, 3} , MD ;   Ellen E Lee   ^{1, 2} , MD ;   Tsung-Chin Wu   ⁴ , BS ;   Xin Tu   ^{1, 2} , PhD ;   Ho-Cheol Kim   ⁵ , PhD ;   Colin A Depp   ^{1, 2, 6} , PhD

¹ Department of Psychiatry, University of California San Diego, La Jolla, CA, United States

² Sam and Rose Stein Institute for Research on Aging, University of California San Diego, La Jolla, CA, United States

³ Department of Neurosciences, University of California San Diego, La Jolla, CA, United States

⁴ Department of Mathematics, University of California San Diego, La Jolla, CA, United States

⁵ Scalable Knowledge Intelligence, IBM Research – Almaden, San Jose, CA, United States, San Jose, CA, United States

⁶ VA San Diego Healthcare System, San Diego, CA, United States