2014 Pan American Health Care Exchanges (PAHCE)最新文献

Description of the electromyographic variables during voluntary cough in humans — A systematic review 人类自主咳嗽时肌电图变量的描述-系统综述

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-07-10 DOI: 10.1109/PAHCE.2014.6849640

F. S. Macedo, C. C. Paz, S. Mateus

引用次数: 0

Biomechanical analysis of the propulsion of the manual wheelchair in patients with spinal cord injury 脊髓损伤患者手动轮椅推进力的生物力学分析

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-07-10 DOI: 10.1109/PAHCE.2014.6849643

I. Quiñones-Urióstegui, F. Bernal-Yescas, J. A. Tovar-Sandoval, E. Vela-Peña, M. Bourdón-Santoyo, A. I. Pérez-Sanpablo

{"title":"Biomechanical analysis of the propulsion of the manual wheelchair in patients with spinal cord injury","authors":"I. Quiñones-Urióstegui, F. Bernal-Yescas, J. A. Tovar-Sandoval, E. Vela-Peña, M. Bourdón-Santoyo, A. I. Pérez-Sanpablo","doi":"10.1109/PAHCE.2014.6849643","DOIUrl":"https://doi.org/10.1109/PAHCE.2014.6849643","url":null,"abstract":"Manual wheelchair Users (MWU) may develop injuries due to mechanical stress caused by propulsion. The technique they used to propel the wheelchair increases the risk, this can be explained because the overuse of the anterior muscles of the joint respect to posterior muscles, generates muscle imbalance [1]. It takes little importance in the technique to propel, and there are no technologies to measure the propulsion available in all hospitals. In the present project a wheelchair ergometer and a 17 rotational degrees of freedom (DOF) biomechanical model were developed to allocate the kinematic parameters to the subject during propulsion, this DOF are associated to shoulder, elbow and wrist joints using seven MTx sensors from Xsens Technologies, each of them associated to a determined anatomic segment. A visual live feedback virtual interface was developed using Visual C++ to create a 3D skeletal model associated to the movement of each anatomic segment, furthermore angle, velocity and acceleration graphics were generated for each joint movement.","PeriodicalId":196438,"journal":{"name":"2014 Pan American Health Care Exchanges (PAHCE)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133239964","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: 3

A transducer array design for acoustic frozen waves generation with a kerf optimization for biomedical applications 用于生物医学应用的具有切口优化的声冻结波产生的换能器阵列设计

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-04-07 DOI: 10.1109/PAHCE.2014.6849635

L. Castellanos, I. Bazán, A. Ramírez-García

引用次数: 2

Multimodal classification of heart sounds attributes 心音属性的多模态分类

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-04-07 DOI: 10.1109/PAHCE.2014.6849615

P. Mayorga, C. Druzgalski, D. Calderas, V. Zeljkovic

{"title":"Multimodal classification of heart sounds attributes","authors":"P. Mayorga, C. Druzgalski, D. Calderas, V. Zeljkovic","doi":"10.1109/PAHCE.2014.6849615","DOIUrl":"https://doi.org/10.1109/PAHCE.2014.6849615","url":null,"abstract":"Pollution and associated negative impacts on human health is one of the major concerns of the World Health Organization and healthcare providers. Current interests focus on particles suspended in air known as PM10 which significantly contribute to increased prevalence of heart disease. Specifically, the city of Mexicali was found to be one of the most polluted cities of Mexico in 2010. Cardiovascular abnormalities are often reflected in characteristic indicators of auscultation based examination. This fundamental diagnostic procedure can be significantly enhanced using low-cost detection technologies and accompanied pattern recognition for classification of associated sound attributes. Related economic issues are critical, both in Latin America and in other regions of the world, where often a limited level of specialized healthcare services are available. One of the goals of these studies was to prove initially demonstrated capabilities that the distinctive auscultatory classification indicators and diagnostic assessment can be easily implemented. In the case of heart sound signals, both the normal sounds and those representing abnormal conditions can be examined and differentiated for diagnostic purposes. The main focus of this study was to use Hidden Markov Models (HMM) for the classification and evaluation of heart sounds (HS). In particular, the application of HMM models provides greater robustness to noise and other interference such as the GMM models. The results demonstrate an enhanced quantitative evaluation, which could assist in a more accurate and economical HS assessment.","PeriodicalId":196438,"journal":{"name":"2014 Pan American Health Care Exchanges (PAHCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130118971","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

Development of an ambulatory ECG system based on Arduino and mobile telephony for wireless transmission 基于Arduino和移动电话无线传输的动态心电系统的开发

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-04-07 DOI: 10.1109/PAHCE.2014.6849623

Y. Ungson, M. Reyna, M. Bravo-Zanoguera

引用次数: 8

Feedback system based on current measurements to improve a hand prosthesis 基于当前测量的反馈系统改进手假体

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-04-07 DOI: 10.1109/PAHCE.2014.6849616

A. Altamirano-Altamirano, A. Vera-Hernández, L. Leija-Salas, D. Wolf

{"title":"Feedback system based on current measurements to improve a hand prosthesis","authors":"A. Altamirano-Altamirano, A. Vera-Hernández, L. Leija-Salas, D. Wolf","doi":"10.1109/PAHCE.2014.6849616","DOIUrl":"https://doi.org/10.1109/PAHCE.2014.6849616","url":null,"abstract":"An improving to control a hand prosthesis prototype is presented on this paper, it is a feedback system to measure and limit currents for five actuators. Three different actuators were used: servomotor, stepper motors & gear motors. The hand performs two different movements: flexo-extension & abduction-adduction; is controlled via embedded systems using Arduino® platform, each finger has a defined trajectory, movements are free and the system doesn't take into account parameters such as: position, speed or torque. The control signals were from an EMG acquiring system based on four differential channels [1]. The acquire system process the signals to give movement commands to the control system of the hand. Feedback system is an addition to the hand control, previously reported by the same authors [2], it is divided in two: analog and digital. Analog is based on operational amplifiers to measure flow currents from each kind of actuator; Digital part is programmed over Arduino® platform to interpret the output from the analog part. Provides to the hand autonomy and free will to take advantage decisions about the movements for each finger. Leaving only to the hand to take the decision, excluding the prosthetic user in that moment.","PeriodicalId":196438,"journal":{"name":"2014 Pan American Health Care Exchanges (PAHCE)","volume":"430 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131419963","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: 1

Comparison of 4 different smoothness metrics for the quantitative assessment of movement's quality in the upper limb of subjects with cerebral palsy 4种不同平滑度指标定量评价脑瘫患者上肢运动质量的比较

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-04-07 DOI: 10.1109/PAHCE.2014.6849644

V. Rincon Montes, Y. Quijano, J. E. Chong Quero, D. Villanueva Ayala, J. C. Perez Moreno

{"title":"Comparison of 4 different smoothness metrics for the quantitative assessment of movement's quality in the upper limb of subjects with cerebral palsy","authors":"V. Rincon Montes, Y. Quijano, J. E. Chong Quero, D. Villanueva Ayala, J. C. Perez Moreno","doi":"10.1109/PAHCE.2014.6849644","DOIUrl":"https://doi.org/10.1109/PAHCE.2014.6849644","url":null,"abstract":"This article discusses the results obtained by computing 4 different quantitative metrics for the assessment of the upper limb, using the elbow angle as the datum for the experiment. This angle was obtained from a commercial Motion Tracking system with 19 subjects: 10 with cerebral palsy (CP) and 9 with no neurological impairment. Subjects performed one task, consisting in reaching a small object (elbow extension) and bringing it to their mouths (elbow flexion). A MATLAB toolbox was implemented in order to compute the logarithmic dimensionless jerk metric, the mean arrest period ratio, the spectral arc-length metric and the peaks metric, as well as the maximum peak angle, minimum peak angle, maximum peak velocity, maximum peak acceleration and minimum angular acceleration. Results show the consistency of the spectral arc-length metric to display the differences between CP and healthy subjects, while the peaks metric and the logarithmic dimensionless jerk metric tend to be useful under some restrictions. With this analysis, a preliminary motor impairment assessment can be deducted, by comparing the metrics data from the CP subjects with the control group.","PeriodicalId":196438,"journal":{"name":"2014 Pan American Health Care Exchanges (PAHCE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123751199","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: 10

Analysis of the power infrastructure that supplies the intensive care unit of a hospital in Mato Grosso do Sul (Brazil) 南马托格罗索州一家医院重症监护室供电基础设施分析(巴西)

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-04-07 DOI: 10.1109/PAHCE.2014.6849631

W. H. Veneziano, A. Assis

引用次数: 1

Hand movement classification using transient state analysis of surface multichannel EMG signal 基于表面多通道肌电信号瞬态分析的手部运动分类

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-04-07 DOI: 10.1109/PAHCE.2014.6849622

M. P. Mobarak, R. Munoz Guerrero, J. M. Gutierrez Salgado, V. Louis Dorr

引用次数: 9

Microcurrent stimulation device as an auxiliary tool for the treatment of diseases 微电流刺激装置作为治疗疾病的辅助工具

2014 Pan American Health Care Exchanges (PAHCE) Pub Date : 2014-04-07 DOI: 10.1109/PAHCE.2014.6849625

F. P. Schwartz, V. R. S. Rocha, M. G. Bastos

引用次数: 1