Anup M Upadhyaya, Preeta Sharan, H K Sowmya, M G Aruna
{"title":"Design and Development of a Fiber Bragg Grating Sensor System for Hand Function Monitoring in Rehabilitation.","authors":"Anup M Upadhyaya, Preeta Sharan, H K Sowmya, M G Aruna","doi":"10.1002/jbio.202500302","DOIUrl":null,"url":null,"abstract":"<p><p>Handgrip pressure is a crucial biomechanical indicator, reflecting limb strength and vertebral bone fracture risk. This study introduces a non-invasive Smart Grip strength measurement system utilizing a Fiber Bragg Grating (FBG) sensor. The device quantifies grip pressure exerted by volunteers in various postures through FBG wavelength shift analysis. Demonstrating a sensitivity of 1.32 pm/με, the system measures grip pressures ranging from 6 to 131 kPa across different hand positions. Tested on 20 volunteers aged 18-25, the maximum recorded grip pressure is 131.9 kPa in the arm-dangled position. The FBG-based Smart Grip system provides a precise and efficient method for handgrip strength assessment, valuable for clinical rehabilitation. The novelty of this work lies in the integration of a single FBG-based Smart Grip system for dual applications such as (1) real-time posture-dependent grip strength monitoring and (2) progressive assessment of bone fracture healing.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500302"},"PeriodicalIF":2.3000,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of biophotonics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/jbio.202500302","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Handgrip pressure is a crucial biomechanical indicator, reflecting limb strength and vertebral bone fracture risk. This study introduces a non-invasive Smart Grip strength measurement system utilizing a Fiber Bragg Grating (FBG) sensor. The device quantifies grip pressure exerted by volunteers in various postures through FBG wavelength shift analysis. Demonstrating a sensitivity of 1.32 pm/με, the system measures grip pressures ranging from 6 to 131 kPa across different hand positions. Tested on 20 volunteers aged 18-25, the maximum recorded grip pressure is 131.9 kPa in the arm-dangled position. The FBG-based Smart Grip system provides a precise and efficient method for handgrip strength assessment, valuable for clinical rehabilitation. The novelty of this work lies in the integration of a single FBG-based Smart Grip system for dual applications such as (1) real-time posture-dependent grip strength monitoring and (2) progressive assessment of bone fracture healing.
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