Research on Non-Invasive Wireless Wearable Sensor System Using Virtual and Physical Sensors for Lower Limb Motion Analysis

An original approach for noninvasive estimation of lower limb joint moments for analysis of STS rehabilitation training with only inertial measurement units was presented based on a piecewise three-segment STS biomechanical model and a double-sensor difference based algorithm. Joint kinematic and kinetic analysis using a customized wearable sensor system composed of accelerometers and gyroscopes were presented and evaluated compared with a referenced camera system by five healthy subjects and five patients in rehabilitation. Since there is no integration of angular acceleration or angular velocity, the result is not distorted without offset and drift. Besides, since there are no physical sensors implanted in the lower limb joints based on the algorithm, it is feasible to noninvasively analyze STS kinematics and kinetics with less numbers and types of inertial sensors than those mentioned in other methods. Compared with the results from the reference system, the developed wearable sensor system is available to do spatiotemporal analysis of STS task with fewer sensors and high degree of accuracy, to apply guidance and reference for rehabilitation training or desired feedback for the control of powered exoskeleton system.

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1415 Motion Analysis Using Wearable Sensor System, And Imitation Control of Robot

The Proceedings of Conference of Chugoku-Shikoku Branch ◽

10.1299/jsmecs.2009.47.501 ◽

2009 ◽

Vol 2009.47 (0) ◽

pp. 501-502

Author(s):

Hajime UTUNOMIYA ◽

KOUTAROU Kubo ◽

Yoshio INOUE ◽

Tao LIU ◽

Kyoko SHIBATA

Keyword(s):

Motion Analysis ◽

Sensor System ◽

Wearable Sensor

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Ambulatory measurement and analysis of the lower limb 3D posture using wearable sensor system

2009 International Conference on Mechatronics and Automation ◽

10.1109/icma.2009.5245982 ◽

2009 ◽

Cited By ~ 4

Author(s):

Kun Liu ◽

Tao Liu ◽

Kyoko Shibata ◽

Yoshio Inoue

Keyword(s):

Lower Limb ◽

Sensor System ◽

Wearable Sensor ◽

Ambulatory Measurement ◽

Measurement And Analysis

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308 Estimation for Joints Moment of Lower Limb Using a Wearable Sensor System

The Proceedings of the Dynamics & Design Conference ◽

10.1299/jsmedmc.2008._308-1_ ◽

2008 ◽

Vol 2008 (0) ◽

pp. _308-1_-_308-5_

Author(s):

Kyoko SHIBATA ◽

Yoshio INOUE ◽

Rencheng Zheng ◽

Tao Liu

Keyword(s):

Lower Limb ◽

Sensor System ◽

Wearable Sensor

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The Feasibility and Validity of a Wearable Sensor System to Assess the Stability of High-Functioning Lower-Limb Prosthesis Users

JPO Journal of Prosthetics and Orthotics ◽

10.1097/jpo.0000000000000332 ◽

2020 ◽

Vol Publish Ahead of Print ◽

Author(s):

Kyle T. Miller ◽

Molly Russell ◽

Terese Jenks ◽

Kaddie Surratt ◽

Kelly Poretti ◽

...

Keyword(s):

Lower Limb ◽

Sensor System ◽

Wearable Sensor ◽

High Functioning ◽

Lower Limb Prosthesis ◽

The Stability ◽

Limb Prosthesis

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A Wearable Sensor System for Human Motion Analysis and Humanoid Robot Control

2006 IEEE International Conference on Robotics and Biomimetics ◽

10.1109/robio.2006.340276 ◽

2006 ◽

Cited By ~ 6

Author(s):

Tao Liu ◽

Yoshio Inoue ◽

Kyoko Shibata

Keyword(s):

Motion Analysis ◽

Robot Control ◽

Humanoid Robot ◽

Human Motion ◽

Sensor System ◽

Human Motion Analysis ◽

Wearable Sensor

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Investigations into the Clinical Utility of Latex D-Dimer in the Diagnosis of Deep Venous Thrombosis

Thrombosis and Haemostasis ◽

10.1055/s-0038-1651178 ◽

1993 ◽

Vol 69 (01) ◽

pp. 008-011 ◽

Cited By ~ 22

Author(s):

Cedric J Carter ◽

D Lynn Doyle ◽

Nigel Dawson ◽

Shauna Fowler ◽

Dana V Devine

Keyword(s):

Venous Thrombosis ◽

Deep Venous Thrombosis ◽

Lower Limb ◽

Clinical Utility ◽

Rapid Test ◽

Fibrin Degradation Product ◽

Current Form ◽

Non Invasive ◽

Clinically Significant ◽

D Dimer

SummaryThe serial use of non-invasive tests has been shown to be a safe method of managing outpatients who are suspected of having lower limb deep venous thrombosis (DVT). Objective testing has shown that the majority of these outpatients do not have venous thrombosis. A rapid test to exclude DVT in these patients, without the need for expensive and inconvenient serial non-invasive vascular testing, would have practical and economic advantages.Studies measuring the fibrin degradation product D-dimer using enzyme-linked immunoassays (EIA) in patients with veno-graphically proven DVT suggest that it should be possible to exclude this condition by the use of one of the rapid latex bead D-dimer tests.We have examined 190 patients with suspected DVT using both a latex and an EIA D-dimer assay. The latex D-dimer test used in this study was negative in 7 of the 36 proven cases of DVT. This sensitivity of only 80% is not sufficient to allow this type of assay, in its current form, to be used as an exclusion test for DVT. The same plasma samples were tested with an EIA assay. This information was used to mathematically model the effects of selecting a range of D-dimer discriminant cut off points for the diagnosis of DVT. These results indicate that 62% of suspected clinically significant DVT could have this diagnosis excluded, with a 98% sensitivity, if the rapid latex or equivalent D-dimer test could be reformulated to measure less than 185 ng/ml of D-dimer.

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