Wearable Vector Electrical Bioimpedance System to Assess Knee Joint Health

Objective: We designed and validated a portable electrical bioimpedance (EBI) system to quantify knee joint health. Methods: Five separate experiments were performed to demonstrate the: 1) ability of the EBI system to assess knee injury and recovery; 2) interday variability of knee EBI measurements;...

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Bibliographic Details
Published in:IEEE transactions on biomedical engineering 2017-10, Vol.64 (10), p.2353-2360
Main Authors: Hersek, Sinan, Toreyin, Hakan, Teague, Caitlin N., Millard-Stafford, Mindy L., Jeong, Hyeon-Ki, Bavare, Miheer M., Wolkoff, Paul, Sawka, Michael N., Inan, Omer T.
Format: Article
Language:English
Subjects:
Bioimpedance
Biomedical monitoring
Biosensing Techniques - instrumentation
Conductometry - instrumentation
Current measurement
Electrical bioimpedance (EBI)
Electrodes
Equipment Design
Equipment Failure Analysis
Error analysis
Error reduction
Feature extraction
Health
Humans
Injuries
joint physiology
Joints (anatomy)
Kernel
Knee
Knee Injuries - diagnosis
Knee Injuries - physiopathology
Knee Joint - physiopathology
Plethysmography, Impedance - instrumentation
Position measurement
Reactance
Rehabilitation
Reproducibility of Results
Sensitivity and Specificity
Variability
Voltage measurement
wearable sensing
Wearable technology
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Description
Summary:Objective: We designed and validated a portable electrical bioimpedance (EBI) system to quantify knee joint health. Methods: Five separate experiments were performed to demonstrate the: 1) ability of the EBI system to assess knee injury and recovery; 2) interday variability of knee EBI measurements; 3) sensitivity of the system to small changes in interstitial fluid volume; 4) reducing the error of EBI measurements using acceleration signals; and 5) use of the system with dry electrodes integrated to a wearable knee wrap. Results: 1) The absolute difference in resistance ( R) and reactance (X) from the left to the right knee was able to distinguish injured and healthy knees (p
ISSN:0018-9294
1558-2531
DOI:10.1109/TBME.2016.2641958