Wearable Sensor Array Design for Spine Posture Monitoring During Exercise Incorporating Biofeedback

Caviedes, Jorge E.; Li, Baoxin; Jammula, Varun Chandra

doi:10.1109/tbme.2020.2971907

Cited by 18 publications

(7 citation statements)

References 30 publications

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“…To address this problem, technological research has increasingly moved toward the development of soft, highly flexible, bendable sensors. Several soft sensors have been proposed for monitoring different joint angles, but only a few have been proposed specifically for the back area [ 21 , 22 , 36 , 37 , 38 ]. However, none of these are intended to detect CTMs.…”

Section: Discussionmentioning

confidence: 99%

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A Wearable System Composed of FBG-Based Soft Sensors for Trunk Compensatory Movements Detection in Post-Stroke Hemiplegic Patients

Presti

Zaltieri

Bravi

et al. 2022

Sensors

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In this study, a novel wearable system for the identification of compensatory trunk movements (CTMs) in post-stroke hemiplegic patients is presented. The device is composed of seven soft sensing elements (SSEs) based on fiber Bragg grating (FBG) technology. Each SSE consists of a single FBG encapsulated into a flexible matrix to enhance the sensor’s robustness and improve its compliance with the human body. The FBG’s small size, light weight, multiplexing capability, and biocompatibility make the proposed wearable system suitable for multi-point measurements without any movement restriction. Firstly, its manufacturing process is presented, together with the SSEs’ mechanical characterization to strain. Results of the metrological characterization showed a linear response of each SSE in the operating range. Then, the feasibility assessment of the proposed system is described. In particular, the device’s capability of detecting CTMs was assessed on 10 healthy volunteers and eight hemiplegic patients while performing three tasks which are representative of typical everyday life actions. The wearable system showed good potential in detecting CTMs. This promising result may foster the use of the proposed device on post-stroke patients, aiming at assessing the proper course of the rehabilitation process both in clinical and domestic settings. Moreover, its use may aid in defining tailored strategies to improve post-stoke patients’ motor recovery and quality of life.

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Section: Discussionmentioning

confidence: 99%

“…Nevertheless, only a few studies have documented their use for spinal monitoring purposes. In [ 21 ], Caviedes et al proposed a flexible triangular sensor array to monitor the spine posture and, thus, the correctness of task execution in postural rehabilitation therapies. However, the system did not allow for the detecting of CTMs.…”

Section: Introductionmentioning

confidence: 99%

A Wearable System Composed of FBG-Based Soft Sensors for Trunk Compensatory Movements Detection in Post-Stroke Hemiplegic Patients

Presti

Zaltieri

Bravi

et al. 2022

Sensors

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“…38 Preliminary reports on ergonomically optimized standing mats have suggested that they are capable of reducing subjective back pain and pain-related behaviors, such as weight shifting between feet, during surgery. 39,40 Posture-correcting devices [41][42][43] and clothing 44 have garnered equivocal results at best, but there remains a paucity of well-designed independent studies exploring their effect in surgeons specifically.…”

Section: Discussionmentioning

confidence: 99%

Ergonomic Analysis of Functional Endoscopic Sinus Surgery Using Novel Inertial Sensors

et al. 2021

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Objectives/Hypothesis Suboptimal ergonomics during endoscopic sinus surgery can lead to considerable physical discomfort and fatigue for the surgeon. The purpose of this pilot study is to objectively evaluate the ergonomic positions of trainee and attending surgeons while performing functional endoscopic sinus surgery (FESS). Study Design Pilot prospective trial. Methods Six surgeons (two attendings and four trainees) performed FESS while wearing 11 inertial measurement units (IMUs) affixed to either side of each major joint. Screen placement was standardized to be 1 m directly in front of the surgeon and on the patient's left, 0–15° declined from the surgeons' eyes. Bed height was standardized such that the workspace was 0 to 10 cm below the elbows. IMU data were analyzed to calculate joint angles. Ideal joint angles (i.e., <10° for neck and trunk) were determined by the validated Rapid Entire Body Assessment tool. Subjects subsequently completed a modified National Aeronautics and Space Administration Task Load Index to assess cognitive and physical burden and pain. Student's t‐test was employed to detect differences between groups. Results Trainees adopted positions involving significantly greater neck flexion (9.90° vs. −6.48°, P = .03) and reported significantly higher frustration levels (3.04 vs. 1.33, P = .02) while operating than attendings. For both cohorts, increased operative time was significantly correlated with greater back flexion (r = 0.90, P = .02; r = 0.55, P = .04, respectively). Conclusions Our data suggest that trainees operate with higher risk neck postures than do attendings. These data indicate high‐risk operative postures may be borne of inexperience and present an opportunity for postural interventions at an early stage of training. Level of Evidence NA Laryngoscope, 132:1153–1159, 2022

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“…The sensor weight is approximately 3 g. Its response time is less than 10 ms, its recovery time is less than 15 ms, and the operating temperature range is from −20 wearable sensors that can be integrated in different platforms such as chairs or clothes. Many embedded systems based on this concept have been reported in literature, but research activity is still ongoing and aims at lowering the systems' cost and increasing accuracy and users' comfort [12][13][14][15][16][17][18][19][20]. A systematic review with respect to wearables for assessing spine kinematics and kinetics is available in [21].…”

Section: Methodsmentioning

confidence: 99%

Low-Cost Wireless Wearable System for Posture Monitoring

et al. 2021

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Posture monitoring aiming at preventing many of the pathologies affecting the spine is becoming more and more essential in many contexts, including telemedicine. The market pushes towards the development of new technical solutions that are comfortable for the user and that are increasingly becoming lower in terms of cost. Some systems at the state of the art level are effective and sometimes quite comfortable, but they have a degree of complexity that is not compatible with some market segments. Here, we report on the development, at a prototype level, a simple, low-cost, and potentially very comfortable microcontroller-based system capable of signaling incorrect postures with great sensitivity. The prototype, which has been tested also using video analysis, has shown its capacity to be easily integrated into a garment. Experimental activity has proven the prototype’s functionality. The wearable embedded system is able to detect flections in the back region monitored by the flex sensor with an accuracy of <3°. The achievement represents a further demonstration of the potential of wearable electronics in the context of cyber-physical systems for healthcare.

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Wearable Sensor Array Design for Spine Posture Monitoring During Exercise Incorporating Biofeedback

Cited by 18 publications

References 30 publications

A Wearable System Composed of FBG-Based Soft Sensors for Trunk Compensatory Movements Detection in Post-Stroke Hemiplegic Patients

A Wearable System Composed of FBG-Based Soft Sensors for Trunk Compensatory Movements Detection in Post-Stroke Hemiplegic Patients

Ergonomic Analysis of Functional Endoscopic Sinus Surgery Using Novel Inertial Sensors

Low-Cost Wireless Wearable System for Posture Monitoring

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