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Technology and Health Care: Official Journal of the European Society for Engineering and Medicine

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https://www.readbyqxmd.com/read/29991151/a-support-vector-machine-approach-to-detect-trans-tibial-prosthetic-misalignment-using-3-dimensional-ground-reaction-force-features-a-proof-of-concept
#1
Xueyi Zhang, Goeran Fiedler, Zhe Cao, Zhicheng Liu
BACKGROUND: Prosthetists conventionally evaluate alignment based on visual interpretation of patients' gait, which is convenient, but largely subjective and depends on prosthetists' experience. OBJECTIVE: In this paper, we explore the feasibility of using a support vector machine (SVM) approach to automatically detect misalignment of trans-tibial prostheses through ground reaction force (GRF). METHODS: Alternate classification algorithms with varying kernels and feature sets were compared to assess the suitability for detection of a representative misalignment (six degrees of ankle plantar flexion) from normal alignment...
June 29, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29991150/changes-in-trunk-sway-and-impairment-during-sitting-and-standing-in-children-with-cerebral-palsy
#2
Do Hyun Kim, Duk-Hyun An, Won-Gyu Yoo
BACKGROUND: Poor postural control constitutes a major impairment in children with cerebral palsy (CP), compromising everyday activities such as sitting- and standing-position. PURPOSE: In this study, we measured trunk sway during sitting- and standing-position. Additionally, we assessed trunk control ability using the trunk impairment scale (TIS), trunk control measurement scale (TCMS), and sitting assessment test for children with neuromotor dysfunction (SACND), in children with CP...
June 29, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29991149/diagnosing-periprosthetic-hip-joint-low-grade-infection-via-arthroscopic-neo-synovium-biopsies
#3
Leif Claassen, Nils Wirries, Sarah Ettinger, Marc-Frederic Pastor, Henning Windhagen, Thilo Flörkemeier
BACKGROUND: There is currently a lack of consensus regarding the most effective diagnostic algorithm for cases of supposed low-grade infection after total hip arthoplasty (THA). OBJECTIVE: The aim of this study was to assess reliability in the use of biopsies, obtained by hip arthroscopy, to detect a periprosthetic hip joint infection (PJI). METHODS: From 2012 to 2016, diagnostic arthroscopy of the hip joint was performed in 20 patients with a supposed PJI following THA...
June 27, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29991148/low-variable-rate-stimulation-strategy-for-cochlear-implants-using-temporal-cues-and-electrophysiological-factors
#4
Elham Zarei, Hamed Sadjedi
BACKGROUND: The performance of a cochlear implant (CI), especially in conveying pitch depends on its electrical stimulation strategy. OBJECTIVE: The present study proposes a variable-rate stimulation algorithm which improves speech emotion perception by using temporal fine-structure cues and electrophysiological parameters of the patient. METHODS: This method is based on the coding of the phase information at the peak time intervals of the band-passed signals...
June 27, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29966214/effects-of-toe-spreader-on-plantar-pressure-and-gait-in-chronic-stroke-patients
#5
Kyoung Bo Lee, Bo Ra Kim, Kang Seong Lee
BACKGROUND: The feet make the initial contact with the ground when walking and critically control both posture and gait. Claw toe, a structural change in the foot that may develop after stroke, triggers functional changes affecting both the lower limbs and balance. OBJECTIVE: We analyzed the effects of a toe spreader on foot pressure and gait in chronic stroke patients. METHODS: We enrolled 25 stroke patients. We used Gaitview AFA-50 and GAITRite instruments to measure plantar pressure distribution and gait with and without a tow spreader...
June 18, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29966213/economic-aspects-and-managerial-implications-of-the-new-technology-in-the-treatment-of-low-back-pain
#6
Patrizia Belfiore, Alessandro Scaletti, Alberto Frau, Maurizio Ripani, Vincenzo Romano Spica, Giorgio Liguori
BACKGROUND: The Human Body Posturizer (HPB), an innovative therapeutic tool able to correct postural changes dynamically, fits perfectly in this framework. OBJECTIVE: The aim of this paper is to consider the potential economic benefits of using the Human Body Posturizer both in terms of direct and indirect cost reduction in one year. METHODS: This study was carried out using an estimation method in order to investigate the possible economic impact related to the adoption of the HBP in subjects with low back pain as an attempt to quantify the costs (direct and indirect) generated at different levels of the path therapeutic...
June 17, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29966212/optimization-of-drilling-parameters-for-thermal-bone-necrosis-prevention
#7
Mohd Faizal Ali Akhbar, Ahmad Razlan Yusoff
BACKGROUND: Bone drilling is a mandatory process in orthopedic surgery to fix the fractured bones. Excessive heat is generated due to the shear deformation of bone and friction energy during the drilling process. OBJECTIVE: This paper is carried out optimize the bone drilling parameters to prevent thermal bone necrosis. The main contribution of this work is instead of only consider the influence of rotational speed and feed rate, the effect of tool diameter and drilling hole depth are also incorporated for optimization study...
June 16, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29966211/effect-of-different-speeds-and-ground-environment-of-squat-exercises-on-lower-limb-muscle-activation-and-balance-ability
#8
Ji-Yeon Lee, Dong-Yeop Lee
BACKGROUND: Squat is the most important exercise for the strengthening of the lower limb muscles. The muscle contraction speed and type affect the muscle activation, strength, and power. OBJECTIVE: This study aimed to investigate the influence of two different speeds of squat exercise on the activation and balance of the lower limb muscles. METHODS: Thirty-eight healthy adults randomly performed squat exercises at different speeds and in different ground environments, 3 times per week for 4 weeks...
June 15, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29966210/simplified-surgical-approach-to-improve-surgical-outcomes-in-the-center-with-a-small-volume-of-acute-type-a-aortic-dissection-surgery
#9
Jong Hun Kim, Jong Bum Choi, Tae Youn Kim, Kyung Hwa Kim, Ja Hong Kuh
BACKGROUND: Despite recent advances in surgical techniques and perioperative management, the surgical mortality of acute type A aortic dissection remains high. OBJECTIVE: In a hospital with few acute type A aortic dissection operations, we retrospectively investigated whether simplified surgical approach could obtain proper surgical outcomes. METHODS: Between October 2007 and December 2016, we performed emergency surgery in 99 patients who had acute type A aortic dissection, including replacement of the hemi-arch in 62 patients (63%) and total arch in 32 patients (32%) and aortic root surgery in 7 patients (7%)...
June 15, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29914043/transfusions-increase-complications-and-infections-after-hip-and-knee-arthroplasty-an-analysis-of-2760-cases
#10
Antonio Klasan, Philipp Dworschak, Thomas J Heyse, Dominik Malcherczyk, Christian D Peterlein, Karl F Schüttler, Matthias Lahner, Bilal Farouk El-Zayat
BACKGROUND: Knee and hip replacement surgery are still the mainstay therapy for osteoarthritis. In spite of the improvement of techniques and implants, anemia is a relatively common complication, with transfusion rates of up to 23% in some centers. OBJECTIVE: The purpose of the study was to determine a correlation of transfusions to complications including infection since this topic is still being debated or even disputed in the literature. METHODS: This is a level III, single center retrospective observational cohort study of 2760 unilateral primary knee and hip replacements...
June 2, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29914041/improved-hill-type-musculotendon-models-with-activation-force-length-coupling
#11
Lixin Sun, Yingfei Sun, Zhipei Huang, Jiateng Hou, Jiankang Wu
BACKGROUND: Hill-type musculotendon models are most commonly used in biomechanical simulations for their computational efficacy and efficiency. But these models are generally built for maximally-activated muscles and linearly scale muscle properties when applied to submaximal conditions. However, the precondition of this scaling, which is muscle activation and properties are independent each other, has been proven unreal in many studies. Actually, the maximal activation condition is not ubiquitous for muscles in vivo, so it is necessary to adapt the linear scaling approach to improve the model practicability...
June 1, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29914042/a-portable-back-massage-robot-based-on-traditional-chinese-medicine
#12
Wendong Wang, Chaohong Liang, Peng Zhang, Yikai Shi
OBJECTIVE: A portable back massage robot which can complete the massage operations such as tapping, kneading and rolling was designed to improve the level of intelligence and massage effect. An efficient full covered path planning algorithm was put forward for a portable back massage robot to improve the coverage. BACKGROUND: Currently, massage robots has become one of important research focuses with the increasing requirements for healthcare. The massage robot is difficult to be widely accepted as there are problems of massage robot in control, structure, and coverage path planning...
May 30, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29843275/ehealth-solutions-and-nonurgent-visits-in-emergency-departments
#13
Mohammadkarim Bahadori, Ehsan Teymourzadeh, Seyyed Meysam Mousavi
No abstract text is available yet for this article.
May 11, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29758979/developmental-screening-tool-accuracy-and-feasibility-of-non-invasive-anaemia-estimation
#14
Raja Muthalagu, Vijayan Thulasi Bai, Doreen Gracias, Sheila John
Anaemia is predicted as one of the serious communal health issue in the world. The deficiency exists most common among children and women. A substantial issue prevails in providing quality healthcare services to rural communities, which remains a challenge to health service providers throughout the world. Traditionally physician and health workers recognized anaemia from certain clinical findings, such as pallor of the conjunctivae, nail beds, lips, tongue, and oral mucosa. Confirmation of anaemic condition through physical examination of Dorsum of a tongue or lower bulbar conjunctiva is a subjective analysis...
April 30, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29758978/analysis-of-foot-kinematics-wearing-high-heels-using-the-oxford-foot-model
#15
Meizi Wang, Yaodong Gu, Julien Steven Baker
Wearing high heels is thought to lead to various foot disorders and injuries such as metatarsal pain, Achilles tendon tension, plantar fasciitis and Haglund malformation. However, there is little available information explaining the specific mechanisms and reasons why wearing high heels causes foot deformity. Therefore, the purpose of this study was to investigate the foot kinematics of high heel wearers and compare any differences with barefoot individuals using the Oxford Foot Model (OFM). Fifteen healthy women aged 20-25 years were measured while walking barefoot and when wearing high heels...
April 29, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29758977/evaluation-of-plantar-pressures-in-people-with-hallux-valgus-using-principal-component-analysis
#16
Kanako Nakajima, Yoshiyuki Kobayashi, Mitsunori Tada, Masaaki Mochimaru
BACKGROUND: Foot deformities are serious problems in the elderly as they increase the risk of falling. OBJECTIVE: This study aimed to examine the relationship between foot plantar pressure during gait and hallux valgus (HV). METHODS: Foot-pressure data were recorded using an F-scan II system. We analyzed the entire waveform of plantar pressure during gait from 37 healthy adults using principle component analysis (PCA), conducted using a 370 × 357 matrix of time-normalized plantar data of 7 areas during gait (5 gait trials × 2 (both feet) of 37 participants × 51 data points × 7 plantar areas)...
April 29, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29758956/prediction-of-human-gait-trajectories-during-the-ssp-using-a-neuromusculoskeletal-modeling-a-challenge-for-parametric-optimization
#17
Mohammadali Rahmati Seyed, Rostami Mostafa, Beigzadeh Borhan
The parametric optimization techniques have been widely employed to predict human gait trajectories; however, their applications to reveal the other aspects of gait are questionable. The aim of this study is to investigate whether or not the gait prediction model is able to justify the movement trajectories for the higher average velocities. A planar, seven-segment model with sixteen muscle groups was used to represent human neuro-musculoskeletal dynamics. At first, the joint angles, ground reaction forces (GRFs) and muscle activations were predicted and validated for normal average velocity (1...
April 27, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29758955/fetal-heart-rate-monitoring-device-using-condenser-microphone-sensor-validation-and-comparison-to-standard-devices
#18
Husna Azyan Binti Ahmad, Ismail M El-Badawy, Om Prakash Singh, Rozana Binti Hisham, M B Malarvili
BACKGROUND: Fetal heart rate (FHR) monitoring device is highly demanded to assess the fetus health condition in home environments. Conventional standard devices such as ultrasonography and cardiotocography are expensive, bulky and uncomfortable and consequently not suitable for long-term monitoring. Herein, we report a device that can be used to measure fetal heart rate in clinical and home environments. METHODS: The proposed device measures and displays the FHR on a screen liquid crystal display (LCD)...
April 27, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29710761/performance-of-cardiopulmonary-resuscitation-feedback-systems-in-a-long-distance-train-with-distributed-traction
#19
Digna M González-Otero, Sofía Ruiz de Gauna, Jesus Ruiz, Raquel Rivero, J J Gutierrez, Purificación Saiz, James K Russell
BACKGROUND: Out-of-hospital cardiac arrest is common in public locations, including public transportation sites. Feedback devices are increasingly being used to improve chest-compression quality. However, their performance during public transportation has not been studied yet. OBJECTIVE: To test two CPR feedback devices representative of the current technologies (accelerometer and electromag- netic-field) in a long-distance train. METHODS: Volunteers applied compressions on a manikin during the train route using both feedback devices...
April 20, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29710760/effects-of-live-and-video-form-action-observation-training-on-upper-limb-function-in-children-with-hemiparetic-cerebral-palsy
#20
Do Hyun Kim, Duk-Hyun An, Won-Gyu Yoo
PURPOSE: The purpose of this study was to investigate the effects of live and video form action observation training (AOT) on upper limb (UL) movement acceleration and function in children with cerebral palsy (CP). METHODS: In total, 12 children (7 boys, 5 girls) with CP participated in this study. The children were allocated randomly to live (experimental) and video (control) AOT groups. All children completed 20 treatment sessions, each 30 minutes in duration, 5 days per week for a month...
April 20, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
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