Assessing Upper-Extremity Motion: An Innovative, Objective Method to Identify Frailty in Older Bed-Bound Trauma Patients

Nima Toosizadeh, Bellal A Joseph, Michelle R. Heusser, Tahereh Orouji Jokar, Martha J Mohler, Herb A. Phelan, Bijan Najafi

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Background: Despite increasing evidence that assessing frailty facilitates medical decision-making, a quick and clinically simple frailty assessment tool is not available for trauma settings. Study Design: This study examined accuracy and acceptability of a novel wearable technology (upper-extremity frailty [UEF]) to objectively assess frailty status in older adults (65 years or older) admitted to the hospital due to traumatic ground-level falls. Frailty was measured using a validated modified Rockwood questionnaire, the Trauma-Specific Frailty Index (TSFI), as the gold standard. Participants performed a 20-second trial of rapid elbow flexion with the dominant elbow in a supine posture while wearing the UEF system. Results: We recruited 101 eligible older adults (age 79 ± 9 years). Parameters of the UEF indicative of slowness, weakness, and exhaustion during elbow flexion were independent predictors of the TSFI score, while adjusted for age, sex, and body mass index. A high agreement (r = 0.72, p <0.0001) was observed between TSFI score and the UEF model; sensitivity and specificity for predicting the frailty status were 78% and 82%, respectively. Of recruited participants, 57% were not able to walk at the time of measurements, suggesting a limitation for walking-based frailty assessments. Significant correlations were observed between UEF parameters and number of falls within a previous year, with highest correlation observed for elbow flexion slowness (r = -0.41). Conclusions: The results suggest that a simple test of 20-second elbow flexion may be practical and sensitive to identify frailty among hospitalized older adults. The UEF test is independent of walking assessments, reflects several frailty markers, and it is practical for bed-bound patients.

Original languageEnglish (US)
JournalJournal of the American College of Surgeons
DOIs
StateAccepted/In press - Dec 10 2015

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Upper Extremity
Elbow
Wounds and Injuries
Walking
Posture
Body Mass Index
Technology
Sensitivity and Specificity

ASJC Scopus subject areas

  • Surgery

Cite this

Assessing Upper-Extremity Motion : An Innovative, Objective Method to Identify Frailty in Older Bed-Bound Trauma Patients. / Toosizadeh, Nima; Joseph, Bellal A; Heusser, Michelle R.; Orouji Jokar, Tahereh; Mohler, Martha J; Phelan, Herb A.; Najafi, Bijan.

In: Journal of the American College of Surgeons, 10.12.2015.

Research output: Contribution to journalArticle

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