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Applied Bionics and Biomechanics

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https://read.qxmd.com/read/30881483/a-comparative-analysis-of-standardised-threads-for-use-in-implants-for-direct-skeletal-attachment-of-limb-prosthesis-a-finite-element-analysis
#1
Piotr Prochor, Eugeniusz Sajewicz
The aim of the research was to determine the optimal thread's shape to be used in implants for direct skeletal attachment of limb prosthesis. In addition, by testing appropriate parameters' modification of the suitable thread, an attempt was made to maximise its effectiveness. The analyses included three thread types described in the ISO standards: shallow, symmetrical, and asymmetrical. The obtained results suggest that shallow thread ensures the lowest equivalent and directional stress peaks generated in the bone as well as favourable stress patterns and profiles during implant loading in relation to symmetrical and asymmetrical threads...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30867678/increased-perceptual-and-motor-performance-of-the-arms-of-elite-water-polo-players
#2
Jovan Gardasevic, Selcuk Akpinar, Stevo Popovic, Dusko Bjelica
Background: It has been stated that long-term participation in sport training can influence the motor asymmetry of the arms with a decreased interlimb difference. However, whether this pattern is observable in different sports and with different variables, like perceptual performance, still needs to be tested. Therefore, we investigated if long-term sports participation might modify the motor and perceptual performance asymmetries of arms in water polo players. It was hypothesized that water polo players would perform with less interlimb asymmetry in comparison to nonathletes...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30863460/development-of-a-mechanistic-hypothesis-linking-compensatory-biomechanics-and-stepping-asymmetry-during-gait-of-transfemoral-amputees
#3
Abeer Mohamed, Andrew Sexton, Kirsten Simonsen, Chris A McGibbon
Objective: Gait asymmetry is a common adaptation observed in lower-extremity amputees, but the underlying mechanisms that explain this gait behavior remain unclear for amputees that use above-knee prostheses. Our objective was to develop a working hypothesis to explain chronic stepping asymmetry in otherwise healthy amputees that use above-knee prostheses. Methods: Two amputees (both through-knee; one with microprocessor knee, one with hydraulic knee) and fourteen control subjects participated...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30863459/research-on-the-design-method-of-a-bionic-suspension-workpiece-based-on-the-wing-structure-of-an-albatross
#4
Siyang Gao, Bangcheng Zhang, Jianwei Sun
An air suspension platform uses air pressure to realize the suspension function during the suspension process, and it has the disadvantage of large air pressure and a small suspension force. In this study, an air suspension platform was built using bionic design to reduce the required air pressure and increase the suspension force. A suspension structure mapping model was established according to the physiological structure characteristics of albatross wings. A bionic model was established by using the theoretical calculation formula and structural size parameters of the structural design...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30809272/the-effect-of-mechanical-overloading-on-surface-roughness-of-the-coronary-arteries
#5
Hanna E Burton, Daniel M Espino
Background: Surface roughness can be used to identify disease within biological tissues. Quantifying surface roughness in the coronary arteries aids in developing treatments for coronary heart disease. This study investigates the effect of extreme physiological loading on surface roughness, for example, due to a rupture of an artery. Methods: The porcine left anterior descending (LAD) coronary arteries were dissected ex vivo. Mechanical overloading was applied to the arteries in the longitudinal direction to simulate extreme physiological loading...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30733828/a-biomechanical-analysis-of-lower-limb-movement-on-the-backcourt-forehand-clear-stroke-among-badminton-players-of-different-levels
#6
Xiaoxue Zhao, Shudong Li
Most of the previous studies have been focused on the upper limb biomechanical characteristic in the clear stroke among different level badminton players, but research on the lower limb is limited. The aim of this study is to explore the lower limb kinematics and foot pressure in the backcourt forehand clear stroke among badminton players to give theoretical reference in teaching and answer the questions occurring in the process of learning the actions. Ten professional badminton players (PP) and ten amateur players (AP) were recruited in this study...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30728856/bionics-and-human-biomechanics-applied-in-intelligent-crash-tests-of-cars
#7
EDITORIAL
Tao Xu, Tatsuo Yoshino, Shujun Zhang, Guowu Wei, Zhixin Liu
No abstract text is available yet for this article.
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30723529/measurement-of-flexion-angle-of-the-finger-joint-during-cylinder-gripping-using-a-three-dimensional-bone-model-built-by-x-ray-computed-tomography
#8
Satoshi Shimawaki, Takuma Murai, Masataka Nakabayashi, Hideharu Sugimoto
Motion analysis of the thumb and the four fingers during human gripping of a cylindrical object is a prerequisite for designing motion mechanisms in electronic arm prostheses and robotic hands. Conventional measurement methods include the use of angle sensors or multiple video recording of markers. In the present study, we performed X-ray computed tomography (CT) imaging on fingers gripping cylinders of three different diameters (10, 60, and 120 mm) and constructed a bone model based on these CT images to directly measure the flexion angle of each finger joint...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30719073/assessment-of-long-term-badminton-experience-on-foot-posture-index-and-plantar-pressure-distribution
#9
Ping Huang, Minjun Liang, Feng Ren
This study was aimed to analyze the foot posture index and plantar pressure characteristics of fifteen badminton players and fifteen controls. The hypothesis was that people with the habit of playing badminton would be significantly different with nonplaying people in foot posture index, 3D foot surface data, and plantar pressure distribution. Nine regions of plantar pressure were measured by using the EMED force platform, and badminton players showed significantly higher peak pressure in the hallux ( p = 0...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30719072/presentation-of-an-approach-on-determination-of-the-natural-frequency-of-human-lumbar-spine-using-dynamic-finite-element-analysis
#10
Fan Ruoxun, Liu Jie, Liu Jun, Wang Weijun
Occurring resonance may negatively affect the health of the human lumbar spine. Hence, vibration generated in working and living environments should be optimized to avoid resonance when identifying the natural frequency of the human lumbar spine. The range of the natural frequency of the human lumbar spine has been investigated, but its specific numerical value has not been determined yet. This study aimed at presenting an approach based on resonance for predicting the specific numerical value of the natural frequency of the human lumbar spine...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30719071/effect-of-low-frequency-vibration-on-muscle-response-under-different-neurointact-conditions
#11
Chaofei Zhang, Wenjun Wang, Dennis Anderson, Sishu Guan, Guofa Li, Hongyi Xiang, Hui Zhao, Bo Cheng
Stretch reflex is an important factor that influences the biomechanical response of the human body under whole-body vibration. However, there is a lack of quantitative evaluation at lower frequencies. Thus, the aim of this study was to investigate the effects of vibration on the stretch reflex and, in particular, to explore the quantitative relationship between dynamic muscle responses and low-frequency vibrations. The gastrocnemius muscle of 45 Sprague-Dawley rats was dissected. Sinusoidal vibrations of five discrete frequencies (2~16 Hz) with peak-to-peak amplitudes of 1 mm were applied to the gastrocnemius muscles with 2 mm or 3 mm prelengthening...
2019: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30675182/gait-specific-optimization-of-composite-footwear-midsole-systems-facilitated-through-dynamic-finite-element-modelling
#12
Dimitris Drougkas, Evagelos Karatsis, Maria Papagiannaki, Serafeim Chatzimoisiadis, Fotini Arabatzi, Stergios Maropoulos, Alexander Tsouknidas
Objective: During the last century, running shoes have been subject to drastic changes with incremental however improvements as to injury prevention. This may be, among others, due to the limited insight that experimental methodologies can provide on their 3D in situ response. The objective of this study was to demonstrate the effectiveness of finite element (FE) modelling techniques, in optimizing a midsole system as to the provided cushioning capacity. Methods: A commercial running shoe was scanned by means of micro computed tomography and its gel-based midsole, reverse-engineered to a 200  μ m accuracy...
2018: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30671133/muscle-synergies-use-and-validation-in-clinics-robotics-and-sports
#13
EDITORIAL
Stefano Rossi, Panagiotis K Artemiadis, Jinsook Roh, Valentina Agostini
No abstract text is available yet for this article.
2018: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30671132/upper-limb-neuromuscular-activities-and-synergies-comparison-between-elite-and-nonelite-athletics-in-badminton-overhead-forehand-smash
#14
Hamidreza Barnamehei, Farhad Tabatabai Ghomsheh, Afsaneh Safar Cherati, Majid Pouladian
This study is aimed at comparing muscle activations and synergies in badminton forehand overhead smash (BFOS) between elite and nonelite players to clarify how the central nervous system (CNS) controls neuromuscular synergy and activation to generate complex overhead movements. EMG of five upper limb muscles was recorded through surface electromyography (EMG) electrodes from twenty players. Athletics is divided into two groups: elite and nonelite. Eventually, nonnegative matrix factorization (NNMF) was utilized to the calculated electromyography signals for muscle synergy comparison...
2018: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30662518/biobjective-optimization-algorithms-using-neumann-series-expansion-for-engineering-design
#15
Huan Guo, Yoshino Tatsuo, Lulu Fan, Ao Ding, Tianshuang Xu, Genyuan Xing
In this paper, two novel algorithms are designed for solving biobjective optimization engineering problems. In order to obtain the optimal solutions of the biobjective optimization problems in a fast and accurate manner, the algorithms, which have combined Newton's method with Neumann series expansion as well as the weighted sum method, are applied to deal with two objectives, and the Pareto optimal front is achieved through adjusting weighted factors. Theoretical analysis and numerical examples demonstrate the validity and effectiveness of the proposed algorithms...
2018: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30627217/bionic-design-of-the-bumper-beam-inspired-by-the-bending-and-energy-absorption-characteristics-of-bamboo
#16
Meng Zou, Jiafeng Song, Shucai Xu, Shengfu Liu, Zhiyong Chang
This study conducted quasistatic three-point bending tests to investigate the effect of bamboo node on the energy absorption, bending, and deformation characteristics of bamboo. Results showed that the node had a reinforcing effect on the energy absorption and bending strength of the bamboo culm subjected to bending load. The experimental results demonstrated that nodal samples (NS) significantly outperform internodal samples without node (INS). Under the three-point bending load, the main failure mode of bamboo is the fracture failure...
2018: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30627216/a-systematic-review-of-continuum-modeling-of-skeletal-muscles-current-trends-limitations-and-recommendations
#17
REVIEW
Tien Tuan Dao, Marie-Christine Ho Ba Tho
Finite elasticity theory has been commonly used to model skeletal muscle. A very large range of heterogeneous constitutive laws has been proposed. In this review, the most widely used continuum models of skeletal muscles were synthetized and discussed. Trends and limitations of these laws were highlighted to propose new recommendations for future researches. A systematic review process was performed using two reliable search engines as PubMed and ScienceDirect. 40 representative studies (13 passive muscle materials and 27 active muscle materials) were included into this review...
2018: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30627215/study-on-three-dimensional-digital-expression-and-robot-bending-method-of-orthodontic-archwire
#18
Jingang Jiang, Xuefeng Ma, Yongde Zhang, Biao Huo, Yi Liu
Malocclusion is the third largest oral disease in the world. At present, the most effective treatment method for malocclusion is the fixed orthodontic technique based on orthodontic archwires. Robotic archwire bending can overcome the shortcomings of manual bending such as low efficiency and low precision. The three-dimensional digital expression and robot bending method of orthodontic archwire are studied to realize the orthodontic archwire bending using a robot. Tooth is identified by the doctors' common method...
2018: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30598697/development-of-high-performance-soft-robotic-fish-by-numerical-coupling-analysis
#19
Wenjing Zhao, Aiguo Ming, Makoto Shimojo
To design a soft robotic fish with high performance by a biomimetic method, we are developing a soft robotic fish using piezoelectric fiber composite (PFC) as a flexible actuator. Compared with the conventional rigid robotic fish, the design and control of a soft robotic fish are difficult due to large deformation of flexible structure and complicated coupling dynamics with fluid. That is why the design and control method of soft robotic fish have not been established and they motivate us to make a further study by considering the interaction between flexible structure and surrounding fluid...
2018: Applied Bionics and Biomechanics
https://read.qxmd.com/read/30595715/on-the-reliability-and-repeatability-of-surface-electromyography-factorization-by-muscle-synergies-in-daily-life-activities
#20
Juri Taborri, Eduardo Palermo, Zaccaria Del Prete, Stefano Rossi
Muscle synergy theory is a new appealing approach for different research fields. This study is aimed at evaluating the robustness of EMG reconstruction via muscle synergies and the repeatability of muscle synergy parameters as potential neurophysiological indices. Eight healthy subjects performed walking, stepping, running, and ascending and descending stairs' trials for five repetitions in three sessions. Twelve muscles of the dominant leg were analyzed. The "nonnegative matrix factorization" and "variability account for" were used to extract muscle synergies and to assess EMG goodness reconstruction, respectively...
2018: Applied Bionics and Biomechanics
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