نتایج جستجو برای: fatigue analysis

تعداد نتایج: 2882271  

ژورنال: ارگونومی 2014

Introduction: Working with Visual Display Terminals (VDTs) can be associated with visual complaints particularly visual fatigue and symptoms including headache, disruption in continuing the work and ocular disorders. The objective of the present study was to determine the prevalence of visual fatigue and its related risk factors in computer users of Kermanshah University of Medical Sciences in ...

ژورنال: سلامت کار ایران 2017

Background and aims: In accomplishing attention-consuming tasks, mental fatigue reduces productivity and increases error rate as the factors involved in work accidents. The present research goal was to study the effects of sleep quality and mental fatigue on attention and reaction time in the thermal comfort condition. Methods: This experimental research was conducted on 33 university students...

Journal: :medical journal of islamic republic of iran 0
soheila rahmani department of psychology and educational sciences, semnanuniversity, semnan, iran. siavash talepasand department of psychology and educational sciences, semnan university, semnan, iran.سازمان اصلی تایید شده: دانشگاه سمنان (semnan university)

background: cancer is not merely an event with a certain end, but it is a permanent and vague situation that is determined by delayed effects due to the disease, its treatment and its related psychological issues. the aim of this study was to examine the effectiveness of the mindfulness-based stress reduction program and conscious yoga on the mental fatigue severity and life quality of women wi...

Journal: :ORAL & implantology 2012
G Sannino A Pozzi R Schiavetti A Barlattani

PURPOSE The purpose of this study was to investigate, by finite element analysis (FEA) and fatigue analysis, the influence of different loading conditions on the stress distribution in a 3-unit implant-supported Y-TZP fixed partial denture (FPD). MATERIAL AND METHODS A three-dimensional FEM model was developed. The materials used in this study were assumed to be linearly elastic, homogeneous ...

2006
Alexander Ptchelintsev

Flexible printed circuits (FPC) are widely used in various electronic packages to interconnect high-performance devices. In case of dynamic applications mechanical reliability of FPCs is becoming a serious issue as complexity of the devices grows and miniaturization trend continues. For many of such applications, failures of FPCs can lead to serious consequences. Fatigue data on FPCs are not co...

2006
Prakriti Parijat Thurmon E. Lockhart

Identifying potential risk factors that affect slip-induced falls is key to developing effective interventions for reduction of injuries caused by these accidents. Existing epidemiological evidence suggests that localized muscle fatigue might be considered as an intrinsic risk factor that causes lack of balance control leading to falls. The literature on the relationship between localized muscu...

2014
Gary R. Hunter William H. Neumeier C. Scott Bickel John P. McCarthy Gordon Fisher Paula C. Chandler-Laney Stephen P. Glasser

Arterial health may influence muscle function in older adults. Study purpose was to determine whether arterial elasticity is related to strength, central and peripheral fatigue, fatigue at rest, and treadmill endurance. Subjects were 91 healthy women aged >60. Treadmill endurance and maximal oxygen uptake (VO2 max) were measured. Peripheral and central fatigue for the knee extensors were evalua...

2017
Evanthia Bernitsas Kalyan Yarraguntla Fen Bao Rishi Sood Carla Santiago-Martinez Rajkumar Govindan Omar Khan Navid Seraji-Bozorgzad

Fatigue is a common and disabling symptom in Multiple Sclerosis (MS). However, consistent neuroimaging correlates of its severity are not fully elucidated. In this article, we study the neuronal correlates of fatigue severity in MS. Forty-three Relapsing Remitting MS (RRMS) patients with MS-related fatigue (Fatigue Severity Scale (FSS) range: 1-7) and Expanded Disability Status Scale (EDSS) ≤ 4...

2016
Chia-Ter Chao Jenq-Wen Huang Chih-Kang Chiang

Background. Patients with end-stage renal disease (ESRD) have a high symptom burden, among which fatigue is highly prevalent. Many fatigue-assessing instruments exist, but comparisons among instruments in this patient population have yet to be investigated. Methods. ESRD patients under chronic hemodialysis were prospectively enrolled and seven types of fatigue instruments were administered: Bri...

Journal: :BMC Musculoskeletal Disorders 2008
Martin Descarreaux Danik Lafond Renaud Jeffrey-Gauthier Hugo Centomo Vincent Cantin

BACKGROUND The flexion relaxation phenomenon (FRP) is an interesting model to study the modulation of lumbar stability. Previous investigations have explored the effect of load, angular velocity and posture on this particular response. However, the influence of muscular fatigue on FRP parameters has not been thoroughly examined. The objective of the study is to identify the effect of erector sp...

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