نتایج جستجو برای: fatigue model

تعداد نتایج: 2167637  

2012
Hanna Maria van Eijsden Ingrid Gerrie Lambert van de Port Johanna Maria August Visser-Meily Gert Kwakkel

Background. Several studies have examined determinants related to post-stroke fatigue. However, it is unclear which determinants can predict an increase in poststroke fatigue over time. Aim. This prospective cohort study aimed to identify determinants which predict an increase in post-stroke fatigue. Methods. A total of 250 patients with stroke were examined at inpatient rehabilitation discharg...

Journal: :CoRR 2009
Liang Ma Damien Chablat Fouad Bennis Wei Zhang

Musculoskeletal disorder (MSD) is one of the major health problems in mechanical work especially in manual handling jobs. Muscle fatigue is believed to be the main reason for MSD. Posture analysis techniques have been used to expose MSD risks of the work, but most of the conventional methods are only suitable for static posture analysis. Meanwhile the subjective influences from the inspectors c...

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...

ژورنال: سلامت کار ایران 2014

Background and aim: Occupational fatigue due to its negative impacts of occupational fatigue on workers’ safety, performance and general health, has been increasingly considered. The objective of the present study was to assess reliability and construct validity of Persian version of Occupational Fatigue/Exhaustion Recovery questionnair (OFER-15) among Iranian working population. Method: In thi...

Introduction: This study aimed to investigate the effect of carpet weaving at a proposed workstation on Upper Trapezius (UTr) fatigue during a task cycle. Fatigue in the shoulder is one of the most important precursors for upper limb musculoskeletal disorders. One of the most prevalent musculoskeletal disorders between carpet weavers is disorder of the shoulder region. Methods: This cross-se...

Journal: :Muscle & nerve 2009
M Susan Marion Anthony S Wexler Maury L Hull Stuart A Binder-Macleod

Mathematical models have been developed to predict fatigue during functional electrical stimulation, but the predictive accuracy at different muscle lengths is unknown. The objectives of our study were to: (1) experimentally determine the relationship between knee extension angle (20 degrees, 40 degrees, 65 degrees, and 90 degrees) and fatigue of the quadriceps muscles, and (2) predict that rel...

2001
Scott F. Popelar

A solder fatigue model for the 63Sn/Pb solder alloy has been previously introduced which characterizes the creep fatigue phenomena of the solder by combining nonlinear finite element modelling with experimental thermal fatigue lives of various flip chip assemblies. The model correlates the amount of creep strain energy dissipated per thermal cycle with the characteristic Weibull life of the cri...

2010
Daniel M Farley Abhijit Dasgupta

Title of Document: DEVELOPMENT OF FATIGUE MODELS FOR COPPER TRACES ON PRINTED WIRING ASSEMBLIES UNDER QUASI-STATIC CYCLIC MECHANICAL BENDING. Daniel M Farley, Doctor of Philosophy, 2010 Directed By: Professor Abhijit Dasgupta Department of Mechanical Engineering This dissertation investigates the fatigue durability of copper (Cu) traces on printed wiring assemblies (PWAs) under quasi-static cyc...

2012
S Zick A Sen T Han-Markey R Harris

Methods A cross-sectional study was conducted to examine possible associations between diet and fatigue. Dietary intake using a 4-day food diary was assessed in 40 cancer survivors. Cancer survivors had completed all cancer treatments at least 12 weeks prior and had their fatigue assessed with the Brief Fatigue Inventory (BFI). Participants were placed into one of three fatigue levels, “no fati...

Journal: :British journal of industrial medicine 1979
E Grandjean

Physical fatigue is a painful phenomenon which is localised in overstressed muscles. Mental fatigue is a diffuse sensation of weariness; it is a functional state, one of several intermediate conditions between the two extremes of alarm and sleep. A neurophysiological model of fatigue, involving an activating and inhibitory system has been developed. Fatigue in industrial practice has clinical s...

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