Journal of Electrical Bioimpedance最新文献_第5页

Comprehensive Biotechnical System for Screening Risk-based Diagnosis of COVID-19 and Post-COVID Syndrome. 基于风险诊断的COVID-19和COVID-19后综合征筛查综合生物技术系统

Journal of Electrical Bioimpedance Pub Date : 2022-09-09 eCollection Date: 2022-01-01 DOI: 10.2478/joeb-2022-0008

Vladimir Savostyanov, Alexander Kobelev, Ivan Kudashov

{"title":"Comprehensive Biotechnical System for Screening Risk-based Diagnosis of COVID-19 and Post-COVID Syndrome.","authors":"Vladimir Savostyanov, Alexander Kobelev, Ivan Kudashov","doi":"10.2478/joeb-2022-0008","DOIUrl":"https://doi.org/10.2478/joeb-2022-0008","url":null,"abstract":"At present, there are no hardware or biochemical systems that allow to assess the severity of post-COVID syndrome in vivo. The hardware of the proposed biotechnical system is based on routine transthoracic electrical impedance rheography, which makes it possible to register the frequency characteristics of the patient's bioimpedance response to controlled stress stimulation, thereby simultaneously fixing the characteristics of his productive heart, the state of the hemomicrocirculatory bed, the efficiency of the gas transport function of his blood, and also reliably assess personal reactivity and adaptive potential. Subsequent mathematical approximation of the obtained biometric data by an original neural network makes it possible to rank the results obtained and automatically generate a program of medical rehabilitation for a particular patient, depending on the severity of his post-COVID syndrome. The study results proved two reliable physiological signs confirming the presence of latent post-COVID complications: a decrease in the base impedance value for light exercise and an increase in the length of the systolic arc of the rheocardiogram.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":" ","pages":"45-53"},"PeriodicalIF":0.0,"publicationDate":"2022-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9487909/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33487941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Body Composition Changes in the Immediate Peri-operative Period Following Total Joint Arthroplasty. 全关节置换术后围手术期身体成分的变化。

Journal of Electrical Bioimpedance Pub Date : 2022-09-09 eCollection Date: 2022-01-01 DOI: 10.2478/joeb-2022-0007

Michael C Marinier, Ayobami S Ogunsola, Jacob M Elkins

{"title":"Body Composition Changes in the Immediate Peri-operative Period Following Total Joint Arthroplasty.","authors":"Michael C Marinier, Ayobami S Ogunsola, Jacob M Elkins","doi":"10.2478/joeb-2022-0007","DOIUrl":"https://doi.org/10.2478/joeb-2022-0007","url":null,"abstract":"Background: Bioimpedance analysis (BIA) is a readily available tool to assess body composition in a clinical setting. BIA has received little attention in orthopaedics and namely joint arthroplasty. This study aims to quantify changes in body composition in the immediate peri-operative period following total joint arthroplasty.Methods: Adults scheduled for elective total joint arthroplasty were recruited to participate. Patients underwent BIA scans in the immediate peri-operative period: pre-operative on their day of surgery, post-operative day 0, and post-operative day 1.Results: 67 patients were enrolled to undergo BIA scans. Mean age was 62.64 ± 10.28 years old, and 49.2% were females. The all-supine cohort exhibited a 0.36 ± 0.61 kg increase in dry lean mass (p < 0.001) and 1.30 ± 2.14 kg increase in lean body mass on postoperative day 0 (p < 0.001). Patients received to 1.16 ± 0.58 kg of fluid mass, on average.Conclusion: BIA is a rapid, portable tool that allows for body composition analysis of an inpatient surgical population. This study demonstrated that BIA can detect net fluid changes and may approximate implant mass following total joint arthroplasty. This may aid surgeons in interpreting post-operative body composition changes.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":" ","pages":"39-44"},"PeriodicalIF":0.0,"publicationDate":"2022-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9487908/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33487942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioelectrical Impedance Changes of the Trunk are Opposite the Limbs Following Acute Hydration Change. 急性水合变化后躯干的生物电阻抗变化与四肢相反。

Journal of Electrical Bioimpedance Pub Date : 2022-06-25 eCollection Date: 2022-01-01 DOI: 10.2478/joeb-2022-0005

Dale R Wagner

{"title":"Bioelectrical Impedance Changes of the Trunk are Opposite the Limbs Following Acute Hydration Change.","authors":"Dale R Wagner","doi":"10.2478/joeb-2022-0005","DOIUrl":"https://doi.org/10.2478/joeb-2022-0005","url":null,"abstract":"This study aimed to evaluate the changes in impedance and estimates of body composition variables obtained from segmental multi-frequency bioelectrical impedance analysis (SMFBIA) following acute hydration change. All participants (N = 11 active adults) had SMFBIA measurements at baseline (euhydration), post-dehydration, and post-hyperhydration in an experimental repeated-measures design. Dehydration and hyperhydration trials were randomized with the opposite treatment given 24 h later. Dehydration was achieved via a heat chamber of 40 °C and 60% relative humidity. Hyperhydration was achieved by drinking lightly-salted water (30 mmol·L-1 NaCl; 1.76 g NaCl·L-1) within 30 min. Post-measurements were taken 30 min after each treatment. Despite changes in mass post-dehydration (Δ = -2.0%, p < 0.001) and post-hyperhydration (Δ = 1.2%, p < 0.001), SMFBIA estimates of total body water (TBW) did not change significantly across trials (p = 0.507), leading to significant differences (p < 0.001) in SMFBIA-estimates of body fat percentage across trials. Dehydration resulted in a significant (p < 0.001) 8% decrease in limb impedances at both 20 kHz and 100 kHz. Hyperhydration increased limb impedances only slightly (1.5%, p > 0.05). Impedance changes in the trunk followed an opposite pattern of the limbs. SMFBIA failed to track acute changes in TBW. Divergent impedance changes suggest the trunk is influenced by fluid volume, but the limbs are influenced by ion concentration.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":" ","pages":"25-30"},"PeriodicalIF":0.0,"publicationDate":"2022-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9252176/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40520430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Validation of Non-empirical Fat-free Mass Estimation Model for a Wrist-worn Device. 腕戴式设备非经验无脂质量估计模型的验证。

Journal of Electrical Bioimpedance Pub Date : 2022-06-25 eCollection Date: 2022-01-01 DOI: 10.2478/joeb-2022-0006

Aleksandr Polokhin, Anna Pronina, Andrey Boev, Stas Gorbunov

{"title":"Validation of Non-empirical Fat-free Mass Estimation Model for a Wrist-worn Device.","authors":"Aleksandr Polokhin, Anna Pronina, Andrey Boev, Stas Gorbunov","doi":"10.2478/joeb-2022-0006","DOIUrl":"https://doi.org/10.2478/joeb-2022-0006","url":null,"abstract":"Fat-free mass (FFM) estimation has dramatic importance for body composition evaluation, often providing a basis for treatment of obesity and muscular dystrophy. However, current methods of FFM estimation have several drawbacks, usually related to either cost-effectiveness and equipment size (dual-energy X-ray absorptiometry (DEXA) scan) or model limitations. In this study, we present and validate a new FFM estimation model based on hand-to-hand bioimpedance analysis (BIA) and arm volume. Forty-two participants underwent a full-body DEXA scan, a series of anthropometric measurements, and upper-body BIA measurements with the custom-designed wearable wrist-worn impedance meter. A new two truncated cones (TTC) model was trained on DEXA data and achieved the best performance metrics of 0.886 ± 0.051 r2, 0.052 ± 0.009 % mean average error, and 6.884 ± 1.283 kg maximal residual error in FFM estimation. The model further demonstrated its effectiveness in Bland-Altman comparisons with the skinfold thickness-based FFM estimation method, achieving the least mean bias (0.007 kg). The novel TTC model can provide an alternative to full-body BIA measurements, demonstrating an accurate FFM estimation independently of population variables.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":" ","pages":"31-38"},"PeriodicalIF":0.0,"publicationDate":"2022-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9252175/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40520429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification of Contractions from Electrohysterography for Prediction of Prolonged Labor. 通过宫电图识别宫缩预测产程延长

Journal of Electrical Bioimpedance Pub Date : 2022-03-31 eCollection Date: 2022-01-01 DOI: 10.2478/joeb-2022-0002

Santosh N Vasist, Parvati Bhat, Shrutin Ulman, Harishchandra Hebbar

引用次数: 0

A Portable Band-shaped Bioimpedance System to Monitor the Body Fat and Fasting Glucose Level. 一种便携式带形生物阻抗系统监测身体脂肪和空腹血糖水平。

Journal of Electrical Bioimpedance Pub Date : 2022-01-01 DOI: 10.2478/joeb-2022-0009

Luong Duong Trong, Linh Nguyen Quang, Duc Hoang Anh, Diep Dang Tuan, Hieu Nguyen Chi, Duc Nguyen Minh

{"title":"A Portable Band-shaped Bioimpedance System to Monitor the Body Fat and Fasting Glucose Level.","authors":"Luong Duong Trong, Linh Nguyen Quang, Duc Hoang Anh, Diep Dang Tuan, Hieu Nguyen Chi, Duc Nguyen Minh","doi":"10.2478/joeb-2022-0009","DOIUrl":"https://doi.org/10.2478/joeb-2022-0009","url":null,"abstract":"With better quality of life, obesity is becoming a worldwide disease due to over-eating and sedentary lifestyle. Therefore, daily monitoring of the glucose and body fat percentage (%) is vital to keep track of one's health. Currently, separated devices are required to monitor each parameter at home and some are still invasive to measure the glucose level. In this study, a portable band-shaped bioimpedance system is proposed to measure both parameters. The system is battery run with two main modules: the current source and the voltage recording, with minimal design to fit into a band of 150 mm x 40 mm in dimension. The impedance is measured at the frequency of 1 kHz at 30 kHz sampling frequency and in 1000 signal cycles to flatten noises. The final average impedance is calculated and evaluated in correlation with the body fat and the fasting glucose. The system was tested on 21 volunteers and 4 locations were picked for the impedance measurement: the arm under the triceps, the side of the belly, the back on one side and the thigh under the bicep femoris. The results show promising results with the arm being the best location for predicting the body fat (correlation coefficient: 0.89, 95% CI: 0.73-0.95), while the thigh impedance best correlated with the fasting glucose (correlation coefficient: 0.92, 95% CI: 0.81-0.97). These preliminary results indicate the feasibility and capacity of the proposed system as a home-based, portable and convenient system in monitoring the body fat and glucose. The system's performance will be verified and replicated in a future larger study.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":"13 1","pages":"54-65"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9709820/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10433284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Acute Water Ingestion and Prolonged Standing on Raw Bioimpedance and Subsequent Body Fluid and Composition Estimates 急性饮水和长时间站立对原始生物阻抗及随后体液和成分估计的影响

Journal of Electrical Bioimpedance Pub Date : 2022-01-01 DOI: 10.2478/joeb-2022-0003

G. Tinsley, Matthew T. Stratton, Patrick S. Harty, Abegale D. Williams, Sarah J. White, Christian Rodriguez, Jacob R. Dellinger, Baylor A. Johnson, R. W. Smith, E. Trexler

{"title":"Influence of Acute Water Ingestion and Prolonged Standing on Raw Bioimpedance and Subsequent Body Fluid and Composition Estimates","authors":"G. Tinsley, Matthew T. Stratton, Patrick S. Harty, Abegale D. Williams, Sarah J. White, Christian Rodriguez, Jacob R. Dellinger, Baylor A. Johnson, R. W. Smith, E. Trexler","doi":"10.2478/joeb-2022-0003","DOIUrl":"https://doi.org/10.2478/joeb-2022-0003","url":null,"abstract":"Abstract This study evaluated the influence of acute water ingestion and maintaining an upright posture on raw bioimpedance and subsequent estimates of body fluids and composition. Twenty healthy adults participated in a randomized crossover study. In both conditions, an overnight food and fluid fast was followed by an initial multi-frequency bioimpedance assessment (InBody 770). Participants then ingested 11 mL/kg of water (water condition) or did not (control condition) during a 5-minute period. Thereafter, bioimpedance assessments were performed every 10 minutes for one hour with participants remaining upright throughout. Linear mixed effects models were used to examine the influence of condition and time on raw bioimpedance, body fluids, and body composition. Water consumption increased impedance of the arms but not trunk or legs. However, drift in leg impedance was observed, with decreasing values over time in both conditions. No effects of condition on body fluids were detected, but total body water and intracellular water decreased by ~0.5 kg over time in both conditions. Correspondingly, lean body mass did not differ between conditions but decreased over the measurement duration. The increase in body mass in the water condition was detected exclusively as fat mass, with final fat mass values ~1.3 kg higher than baseline and also higher than the control condition. Acute water ingestion and prolonged standing exert practically meaningful effects on relevant bioimpedance variables quantified by a modern, vertical multi-frequency analyzer. These findings have implications for pre-assessment standardization, methodological reporting, and interpretation of assessments.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":"13 1","pages":"10 - 20"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47119605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

The Russian Bioimpedance Database: An Update. 俄罗斯生物阻抗数据库:更新。

Journal of Electrical Bioimpedance Pub Date : 2022-01-01 DOI: 10.2478/joeb-2022-0010

Sergey G Rudnev, Olga A Starunova, Elena Z Godina, Alla E Ivanova, Alexander V Zubko, Vladimir I Starodubov

{"title":"The Russian Bioimpedance Database: An Update.","authors":"Sergey G Rudnev, Olga A Starunova, Elena Z Godina, Alla E Ivanova, Alexander V Zubko, Vladimir I Starodubov","doi":"10.2478/joeb-2022-0010","DOIUrl":"https://doi.org/10.2478/joeb-2022-0010","url":null,"abstract":"Extensive bioelectrical impedance analysis (BIA) data have the potential of health monitoring and the assessment of health risks at the population level. The importance of BIA data lies in their availability and abundance for many countries. In Russia, mass BIA data are generated by the national network of health centers (HCs). Our aim was to describe the structure and capabilities of the updated HCs' BIA database. Upon several requests between 2012 and 2020, 369 HCs representing all Federal districts of Russia and 60 out of 85 Federal subjects in them, submitted raw bioimpedance data which were obtained using the same type of BIA instrument, namely ABC-01 'Medas' (SRC Medas, Russia). After application of strict selection criteria, 2,429,977 BIA measurement records were selected that formed the updated 2010-2019 HCs' database. Various slices of the BIA data are described according to spatiotemporal, demographic and other characteristics. Reference curves of the bioimpedance phase angle according to age and sex are presented. Limitations and prospects for further work are outlined. We believe that, after appropriate sampling, the database can be utilized to study biological, geographical, social and other associations of the bioimpedance and body composition parameters, for generating updated national references, international comparisons and data standardization.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":"13 1","pages":"66-72"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9709819/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10372790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Probing Deep Lung Regions using a New 6-electrode Tetrapolar Impedance Method. 一种新型六电极四极阻抗法探测深肺区域。

Journal of Electrical Bioimpedance Pub Date : 2022-01-01 DOI: 10.2478/joeb-2022-0016

Mahjabin Mobarak, Muhammad Abdul Kadir, K Siddique-E Rabbani

{"title":"Probing Deep Lung Regions using a New 6-electrode Tetrapolar Impedance Method.","authors":"Mahjabin Mobarak, Muhammad Abdul Kadir, K Siddique-E Rabbani","doi":"10.2478/joeb-2022-0016","DOIUrl":"https://doi.org/10.2478/joeb-2022-0016","url":null,"abstract":"Probing deep regions of the lung using electrical impedance is very important considering the need for a low cost and simple technique, particularly for the low and medium income countries. Because of complexity and cost, Electrical Impedance Tomography is not suitable for this envisaged application. The simple Tetrapolar Impedance Measurement (TPIM) technique employing four electrodes is the age old technique for bioelectrical measurements. However, it has its limitations in respect of organ localisation and depth sensitivity using skin surface electrodes. Recently, a new 6-electrode TPIM with two current electrodes but two pairs of appropriately connected potential electrodes positioned on the front and back of the thorax, proposed by one of the authors, came with a promise. However, this work gave a qualitative proposal based on concepts of physics and lacked a quantitative evaluation. In order to evaluate the method quantitatively, the present work employed finite element method based COMSOL Multiphysics software and carried out simulation studies using this new 6-electrode TPIM and compared the results with those from 4-electrode TPIM, with electrodes applied either on the front or at the back of the thorax for the latter. Initially, it carried out a sensitivity distribution study using a simple rectangular volume conductor which showed that the 6-electrode TPIM gives better depth sensitivity throughout the lung region. Next it used a near life like thorax model developed by another of the authors earlier. Using this model, extensive studies were carried out to quantify the overall sensitivity over a target lung region, the contribution of the target lung to the total measured impedance, and several other parameters. Through these studies, the 6-electrode TPIM was established on a stronger footing for probing deep regions of the lungs.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":"13 1","pages":"116-124"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9837866/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10610098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of a Small Footprint Device for Measuring Electrodermal Activity in the Palm of the Hand. 一种用于测量手掌电皮肤活动的小足迹装置的研制。

Journal of Electrical Bioimpedance Pub Date : 2022-01-01 DOI: 10.2478/joeb-2022-0021

Åsmund Aukrust, Leah Marie Foseid, Kristiane Holm

引用次数: 0