Open AccessA Wrist-Worn Sensor-Derived Frailty Index Based on an Upper-Extremity Functional Test in Predicting Functional Mobility in Older Adults
Author(s) -
Gu Eon Kang,
Aanand D. Naik,
Ravi K. Ghanta,
Todd K. Rosengart,
Bijan Najafi
Publication year - 2021
Publication title -
gerontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.397
H-Index - 94
eISSN - 1423-0003
pISSN - 0304-324X
DOI - 10.1159/000515078
Subject(s) - wrist , physical medicine and rehabilitation , frailty index , test (biology) , gerontology , timed up and go test , medicine , index (typography) , physical therapy , psychology , computer science , surgery , balance (ability) , paleontology , world wide web , biology
Preoperative frailty is an independent risk factor for postoperative complications across surgical specialties. Functional mobility such as gait, timed up and go (TUG), and 5 times sit-to-stand (5-STS) are popular preoperative frailty measurements but are not suitable for patients with severe mobility impairment. A wrist-worn sensor-derived frailty index based on an upper-extremity functional test (20-s repetitive elbow flexion-extension task; UEFI) was developed previously; however, its association with functional mobility remained unexplored. We aimed to investigate the predictive power of the UEFI in predicting functional mobility.