Fitbit Data to Assess Functional Capacity in Patients Before Elective Surgery: Pilot Prospective Observational Study

被引:13
作者
Angelucci, Alessandra [1 ,5 ]
Greco, Massimiliano [2 ,3 ]
Canali, Stefano [1 ,4 ]
Marelli, Giovanni [1 ]
Avidano, Gaia [2 ]
Goretti, Giulia [3 ]
Cecconi, Maurizio [2 ,3 ]
Aliverti, Andrea [1 ]
机构
[1] Politecn Milan, Dipartimento Elettron Informaz & Bioingn, Milan, Italy
[2] Humanitas Univ, Dept Biomed Sci, Pieve Emanuele, Italy
[3] IRCCS Humanitas Res Hosp, Dept Anesthesiol & Intens Care, Rozzano, Italy
[4] Politecn Milan, META Social Sci & Humanities Sci & Technol, Milan, Italy
[5] Politecn Milan, Dipartimento Elettron Informaz & Bioingn, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy
关键词
wearable devices; smartwatch data; preoperative risk assessment; ethics in wearables; mobile phone; HEART-RATE-VARIABILITY; MODELING STRATEGY; WALK TEST; EXERCISE; ACCURACY; FITNESS; HEALTH;
D O I
10.2196/42815
中图分类号
R19 [保健组织与事业(卫生事业管理)];
学科分类号
摘要
Background: Preoperative assessment is crucial to prevent the risk of complications of surgical operations and is usually focused on functional capacity. The increasing availability of wearable devices (smartwatches, trackers, rings, etc) can provide less intrusive assessment methods, reduce costs, and improve accuracy. Objective: The aim of this study was to present and evaluate the possibility of using commercial smartwatch data, such as those retrieved from the Fitbit Inspire 2 device, to assess functional capacity before elective surgery and correlate such data with the current gold standard measure, the 6-Minute Walk Test (6MWT) distance. Methods: During the hospital visit, patients were evaluated in terms of functional capacity using the 6MWT. Patients were asked to wear the Fitbit Inspire 2 for 7 days (with flexibility of -2 to +2 days) after the hospital visit, before their surgical operation. Resting heart rate and daily steps data were retrieved directly from the smartwatch. Feature engineering techniques allowed the extraction of heart rate over steps (HROS) and a modified version of Non-Exercise Testing Cardiorespiratory Fitness. All measures were correlated with 6MWT. Results: In total, 31 patients were enrolled in the study (n=22, 71% men; n=9, 29% women; mean age 76.06, SD 4.75 years). Data were collected between June 2021 and May 2022. The parameter that correlated best with the 6MWT was the Non-Exercise Testing Cardiorespiratory Fitness index (r=0.68; P<.001). The average resting heart rate over the whole acquisition period for each participant had r=-0.39 (P=.03), even if some patients did not wear the device at night. The correlation of the 6MWT distance with the HROS evaluated at 1% quantile was significant, with Pearson coefficient of -0.39 (P=.04). Fitbit step count had a fair correlation of 0.59 with 6MWT (P<.001). Conclusions: Our study is a promising starting point for the adoption of wearable technology in the evaluation of functional capacity of patients, which was strongly correlated with the gold standard. The study also identified limitations in the availability of metrics, variability of devices, accuracy and quality of data, and accessibility as crucial areas of focus for future studies.
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页数:13
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