نتایج جستجو برای: asymmetric stiffness

تعداد نتایج: 108402  

اسلامی, منصور, حاتمی جوشقان, زهرا,

Objective: A better understanding of the role of muscle fatigue in lower limb stiffness during performance will provide a strong foundation for the development of optimal training intervention programs. This study aimed to investigate the effect of fatigue on ankle and knee joints and leg stiffness during a 30-scontinuous vertical jump test. Methods: Fifteen female volleyball players without h...

Eshrestaghi, Mojtaba, Ravasi, Ali Asghar, Shirzad, Elham,

Stiffness is an index for determination of elastic properties of body and its optimum range is different in various motion patterns. The Spring-mass model is used for calculating stiffness. In this method, the whole leg is modeled with a linear simple spring. The aim of this study is determination of lower body stiffness and evaluation of its correlation with agility, as dominant motion patt...

Journal: :the archives of bone and joint surgery 0
ebrahimzadeh mohammad hosein mashad university of medical sciences meysam fathi choghadeh orthopedic surgeon, orthopedic research center mashhad university of medical sciences, iran ali moradi assistant professor of orthopedic surgery, orthopedic research center, mashhad university of medical sciences, iran hand fellow, mass general hospital, harvard medical school, boston, 02114 ma, us hamid hejrati kalati orthopedic surgeon, orthopedic research center mashhad university of medical sciences, iran amir h jafarian assistant professor of pathology ghaem hospital, mashhad university of medical sciences

we present a 23-year-old man with distal humerus osteoid osteoma referring to our hospital with pain and progressive stiffness. the patient has been suffering from the disease for two years without a certain diagnosis. the radiographies of elbow did not reveal the pathology but further ct scan and mri studies demonstrated the tumor. the en block resection of the tumor resolved the pain immediat...

2016
M. J. Fox K. Beyer T. J. Sullivan

Architectural layouts of reinforced concrete buildings often require structural walls, with varying dimensions, to be placed in an asymmetric plan configuration. During seismic excitation the asymmetry induces a torsional component of response, which can impact negatively on the performance of the building by increasing demands on both structural and nonstructural elements. Furthermore, the tor...

Introduction: The ability to attain high level of speed is an essential component of success in many sports fields. However, physical qualities that underpin this ability remain unclear. The purpose of this study was to investigate the role of leg stiffness and vertical stiffness in predicting sprint running. Methods: 50 healthy females were selected among physical education students. The requi...

Journal: :hepatitis monthly 0
luca rinaldi department of medical and surgical oncology, liver unit, aorn s. anna and s. sebastiano, caserta, italy giovanna valente department of medical and surgical oncology, liver unit, aorn s. anna and s. sebastiano, caserta, italy guido piai department of medical and surgical oncology, liver unit, aorn s. anna and s. sebastiano, caserta, italy; md, liver unit (satte), department of medical and surgical oncology, aorn sant’anna e san sebastiano, via palasciano, 81100 caserta, italy. tel: +39-0823232366, fax: +39-08231761357

conclusions the pattern of longitudinally increased liver stiffness measurements efficiently supported clinical decisions for individualized management strategies. repeated transient elastography in real-life clinical practice appears to have a practical role in monitoring liver transplanted patients. background liver transplanted patients need close surveillance for early signs of graft diseas...

Journal: :international journal of civil engineering 0
h. liu tsinghua univ j. guo research institute of highway ministry transport, beijing, 100088, china j. guo research institute of highway ministry transport, beijing, 100088, china zh. hou central research institute of building and construction co., ltd., mcc, beijing 100023, china y. shi tsinghua univ

self-centering pier (scp) has been viewed as a remarkable accomplishment which is able to sustain major lateral loading with reduced structure damage in seismic engineering. stiffness deterioration observed in experiment is vital for the seismic performance of self-centering concrete pier. in this contribution, the associated stiffness deterioration with respect to the structural damage is mode...

In this paper, an analytical formula to calculate the radial stiffness of groove elastic support is presented. The influence of structure parameters on radial stiffness and homogeneity of radial stiffness is investigated as well. The accuracy and calculating speed of the analysis formula are compared to that of finite element method (FEM). Findings are as following: The calculating speed of ana...

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