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Applied Bionics and Biomechanics

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https://www.readbyqxmd.com/read/28706440/reliability-of-an-integrated-ultrasound-and-stereophotogrammetric-system-for-lower-limb-anatomical-characterisation
#1
Frederick Greatrex, Erica Montefiori, Thomas Grupp, Josef Kozak, Claudia Mazzà
BACKGROUND: Lower extremity analysis for preoperative total knee and hip arthroplasty routines can increase surgery success rate and hence reduce associated costs. Current tools are limited by being invasive, limited to supine analysis, or too expensive. This study aimed to propose and validate a device, OrthoPilot®, based on the combined use of a stereophotogrammetric and ultrasound system which can in vivo and noninvasively measure varus/valgus, flexion/extension, femur and tibia torsion, and femur and tibia lengths...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28694684/comparison-of-joint-loading-in-badminton-lunging-between-professional-and-amateur-badminton-players
#2
Lin Fu, Feng Ren, Julien S Baker
The knee and ankle are the two most injured joints associated with the sport of badminton. This study evaluates biomechanical factors between professional and amateur badminton players using an injury mechanism model. The aim of this study was to investigate the kinematic motion and kinetic loading differences of the right knee and ankle while performing a maximal right lunge. Amateur players exhibited greater ankle range of motion (p < 0.05, r = 0.89) and inversion joint moment (p < 0.05, r = 0.54) in the frontal plane as well as greater internal joint rotation moment (p < 0...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28684897/influence-of-cleats-surface-interaction-on-the-performance-and-risk-of-injury-in-soccer-a-systematic-review
#3
REVIEW
Diogo C F Silva, Rubim Santos, João Paulo Vilas-Boas, Rui Macedo, António Mesquita Montes, Andreia S P Sousa
OBJECTIVE: To review the influence of cleats-surface interaction on the performance and risk of injury in soccer athletes. DESIGN: Systematic review. DATA SOURCES: Scopus, Web of science, PubMed, and B-on. ELIGIBILITY CRITERIA: Full experimental and original papers, written in English that studied the influence of soccer cleats on sports performance and injury risk in artificial or natural grass. RESULTS: Twenty-three articles were included in this review: nine related to performance and fourteen to injury risk...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28659710/fluid-shear-stress-and-fibroblast-growth-factor-2-increase-endothelial-cell-associated-vitronectin
#4
Justin G Mathew, Sarah Basehore, Alisa Morss Clyne
Vitronectin is a matricellular protein that plays an important role in both coagulation and angiogenesis through its effects on cell adhesion and the plasminogen system. Vitronectin is known to bind to endothelial cells upon integrin activation. However, the effect of integrin activation by shear stress and growth factors on cell-associated vitronectin and plasminogen system activity has not yet been studied. We therefore exposed human umbilical vein endothelial cells to steady laminar flow, oscillating disturbed flow, or fibroblast growth factor-2 (FGF-2) for 24 hours...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28630564/cathrob-a-highly-compact-and-versatile-remote-catheter-navigation-system
#5
Laura Cercenelli, Barbara Bortolani, Emanuela Marcelli
Several remote catheter navigation systems have been developed and are now commercially available. However, these systems typically require specialized catheters or equipment, as well as time-consuming operations for the system set-up. In this paper, we present CathROB, a highly compact and versatile robotic system for remote navigation of standard tip-steerable electrophysiology (EP) catheters. Key features of CathROB include an extremely compact design that minimizes encumbrance and time for system set-up in a standard cath lab, a force-sensing mechanism, an intuitive command interface, and functions for automatic catheter navigation and repositioning...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28584518/an-investigation-into-a-gear-based-knee-joint-designed-for-lower-limb-prosthesis
#6
M S H Bhuiyan, I A Choudhury, M Dahari, Y Nukman, S Z Dawal
A gear-based knee joint is designed to improve the performance of mechanical-type above-knee prostheses. The gear set with the help of some bracing, and bracket arrangement, is used to enable the prosthesis to follow the residual limb movement. The motion analysis and finite-element analysis (FEA) of knee joint components are carried out to assess the feasibility of the design. The maximum stress of 29.74 MPa and maximum strain of 2.393e-004 are obtained in the gear, whereas the maximum displacement of 7...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28555091/gravity-compensation-and-feedback-of-ground-reaction-forces-for-biped-balance-control
#7
Satoshi Ito, Shingo Nishio, Yuuki Fukumoto, Kojiro Matsushita, Minoru Sasaki
This paper considers the balance control of a biped robot under a constant external force or on a sloped ground. We have proposed a control method with feedback of the ground reaction forces and have realized adaptive posture changes that ensure the stability of the robot. However, fast responses have not been obtained because effective control is achieved by an integral feedback that accompanies a time delay necessary for error accumulation. To improve this response, here, we introduce gravity compensation in a feedforward manner...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28546738/kinematic-and-electromyographic-activity-changes-during-back-squat-with-submaximal-and-maximal-loading
#8
Hasan U Yavuz, Deniz Erdag
The aim of this study was to investigate the possible kinematic and muscular activity changes with maximal loading during squat maneuver. Fourteen healthy male individuals, who were experienced at performing squats, participated in this study. Each subject performed squats with 80%, 90%, and 100% of the previously established 1 repetition maximum (1RM). Electromyographic (EMG) activities were measured for the vastus lateralis, vastus medialis, rectus femoris, semitendinosus, biceps femoris, gluteus maximus, and erector spinae by using an 8-channel dual-mode portable EMG and physiological signal data acquisition system (Myomonitor IV, Delsys Inc...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28487622/an-ultrasound-imaging-guided-robotic-hifu-ablation-experimental-system-and-accuracy-evaluations
#9
Chih Yu An, Jia Hao Syu, Ching Shiow Tseng, Chih-Ju Chang
In recent years, noninvasive thermal treatment by using high-intensity focused ultrasound (HIFU) has high potential in tumor treatment. The goal of this research is to develop an ultrasound imaging-guided robotic HIFU ablation system for tumor treatment. The system integrates the technologies of ultrasound image-assisted guidance, robotic positioning control, and HIFU treatment planning. With the assistance of ultrasound image guidance technology, the tumor size and location can be determined from ultrasound images as well as the robotic arm can be controlled to position the HIFU transducer to focus on the target tumor...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28487621/effect-of-drop-foot-on-spatiotemporal-kinematic-and-kinetic-parameters-during-gait
#10
Ida Wiszomirska, Michalina Błażkiewicz, Katarzyna Kaczmarczyk, Grażyna Brzuszkiewicz-Kuźmicka, Andrzej Wit
Background. The complexity of the structure and function of a living body can be affected by disorders and can cause various dysfunctions. Objective. The aim of this study was to determine compensatory mechanisms in subjects with drop foot during gait. Methods. The study evaluated 10 subjects with drop foot (DF) whose results were compared to a group of 10 healthy controls (C). Spatiotemporal, kinematic, and kinetic parameters during the gait cycle were collected using Vicon system synchronized with Kistler platforms...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28487620/kinematics-of-the-normal-knee-during-dynamic-activities-a-synthesis-of-data-from-intracortical-pins-and-biplane-imaging
#11
Xavier Gasparutto, Florent Moissenet, Yoann Lafon, Laurence Chèze, Raphaël Dumas
Few studies have provided in vivo tibiofemoral kinematics of the normal knee during dynamic weight-bearing activities. Indeed, gold standard measurement methods (i.e., intracortical pins and biplane imaging) raise ethical and experimental issues. Moreover, the conventions used for the processing of the kinematics show large inconsistencies. This study aims at synthesising the tibiofemoral kinematics measured with gold standard measurement methods. Published kinematic data were transformed in the standard recommended by the International Society of Biomechanics (ISB), and a clustering method was applied to investigate whether the couplings between the degrees of freedom (DoFs) are consistent among the different activities and measurement methods...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28465660/the-effect-of-body-mass-on-the-shoe-athlete-interaction
#12
A Tsouknidas, M Pantazopoulos, D Sagris, D Fasnakis, S Maropoulos, F Arabatzi, N Michailidis
Long-distance running is known to induce joint overloading and elevate cytokine levels, which are the hallmarks for a variety of running-related injuries. To address this, footwear systems incorporate cushioning midsoles to mitigate injurious mechanical loading. The aim of this study was to evaluate the effect of athlete body mass on the cushioning capacity of technical footwear. An artificial heel was prototyped to fit the impact pattern of a heel-strike runner and used to measure shock attenuation by an automated drop test...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28348501/an-investigation-into-the-relation-between-the-technique-of-movement-and-overload-in-step-aerobics
#13
Alicja Rutkowska-Kucharska, Katarzyna Wysocka, Sławomir Winiarski, Agnieszka Szpala, Małgorzata Sobera
The aim of this research was to determine the features of a step workout technique which may be related to motor system overloading in step aerobics. Subjects participating in the research were instructors (n = 15) and students (n = 15) without any prior experience in step aerobics. Kinematic and kinetic data was collected with the use of the BTS SMART system comprised of 6 calibrated video cameras and two Kistler force plates. The subjects' task was to perform basic steps. The following variables were analyzed: vertical, anteroposterior, and mediolateral ground reaction forces; foot flexion and abduction and adduction angles; knee joint flexion angle; and trunk flexion angle in the sagittal plane...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28260849/effects-of-gait-speed-of-femoroacetabular-joint-forces
#14
Joshua T Weinhandl, Bobbie S Irmischer, Zachary A Sievert
Alterations in hip joint loading have been associated with diseases such as arthritis and osteoporosis. Understanding the relationship between gait speed and hip joint loading in healthy hips may illuminate changes in gait mechanics as walking speed deviates from preferred. The purpose of this study was to quantify hip joint loading during the gait cycle and identify differences with varying speed using musculoskeletal modeling. Ten, healthy, physically active individuals performed walking trials at their preferred speed, 10% faster, and 10% slower...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28255225/influence-of-different-patellofemoral-design-variations-based-on-genesis-ii-total-knee-endoprosthesis-on-patellofemoral-pressure-and-kinematics
#15
Ulf G Leichtle, Barbara Lange, Yvonne Herzog, Peter Schnauffer, Carmen I Leichtle, Nikolaus Wülker, Andrea Lorenz
In total knee arthroplasty (TKA), patellofemoral groove design varies greatly and likely has a distinct influence on patellofemoral biomechanics. To analyse the selective influence, five patellofemoral design variations were developed based on Genesis II total knee endoprosthesis (original design, being completely flat, being laterally elevated, being medially elevated, and both sides elevated) and made from polyamide using rapid prototyping. Muscle-loaded knee flexion was simulated on 10 human knee specimens using a custom-made knee simulator, measuring the patellofemoral pressure distribution and tibiofemoral and patellofemoral kinematics...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28255224/dual-task-does-not-increase-slip-and-fall-risk-in-healthy-young-and-older-adults-during-walking
#16
Rahul Soangra, Thurmon E Lockhart
Dual-task tests can identify gait characteristics peculiar to fallers and nonfallers. Understanding the relationship between gait performance and dual-task related cognitive-motor interference is important for fall prevention. Dual-task adapted changes in gait instability/variability can adversely affect fall risks. Although implicated, it is unclear if healthy participants' fall risks are modified by dual-task walking conditions. Seven healthy young and seven healthy older adults were randomly assigned to normal walking and dual-task walking sessions with a slip perturbation...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28243053/bionic-design-of-wind-turbine-blade-based-on-long-eared-owl-s-airfoil
#17
Weijun Tian, Zhen Yang, Qi Zhang, Jiyue Wang, Ming Li, Yi Ma, Qian Cong
The main purpose of this paper is to demonstrate a bionic design for the airfoil of wind turbines inspired by the morphology of Long-eared Owl's wings. Glauert Model was adopted to design the standard blade and the bionic blade, respectively. Numerical analysis method was utilized to study the aerodynamic characteristics of the airfoils as well as the blades. Results show that the bionic airfoil inspired by the airfoil at the 50% aspect ratio of the Long-eared Owl's wing gives rise to a superior lift coefficient and stalling performance and thus can be beneficial to improving the performance of the wind turbine blade...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28127229/bionic-design-for-mars-sampling-scoop-inspired-by-himalayan-marmot-claw
#18
Long Xue, Rong Rong Zhang, Wei Zong, Jia Feng Song, Meng Zou
Cave animals are often adapted to digging and life underground, with claw toes similar in structure and function to a sampling scoop. In this paper, the clawed toes of the Himalayan marmot were selected as a biological prototype for bionic research. Based on geometric parameter optimization of the clawed toes, a bionic sampling scoop for use on Mars was designed. Using a 3D laser scanner, the point cloud data of the second front claw toe was acquired. Parametric equations and contour curves for the claw were then built with cubic polynomial fitting...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28127228/applications-and-engineering-analysis-of-lotus-roots-under-external-water-pressure
#19
Yiyun Zhu, Chang Jiang Wang, Diane Mynors
Engineers can learn from nature for inspirations to create new designs. The internal structure of lotus roots with several oval holes was studied in this paper for engineering inspirations. The structural performance of lotus roots under outside water pressure was simulated and compared with various cross-sectional areas. The distribution of stresses in the cross-sectional area of lotus roots was analysed and presented. It was found that the maximum compressive stresses in the cross-sectional area of lotus roots were occurring at the long axis ends of the holes...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28115825/a-review-of-artificial-lateral-line-in-sensor-fabrication-and-bionic-applications-for-robot-fish
#20
REVIEW
Guijie Liu, Anyi Wang, Xinbao Wang, Peng Liu
Lateral line is a system of sense organs that can aid fishes to maneuver in a dark environment. Artificial lateral line (ALL) imitates the structure of lateral line in fishes and provides invaluable means for underwater-sensing technology and robot fish control. This paper reviews ALL, including sensor fabrication and applications to robot fish. The biophysics of lateral line are first introduced to enhance the understanding of lateral line structure and function. The design and fabrication of an ALL sensor on the basis of various sensing principles are then presented...
2016: Applied Bionics and Biomechanics
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