نتایج جستجو برای: fatigue
تعداد نتایج: 70017 فیلتر نتایج به سال:
The performance of human resources is affected by various factors such as mental and physical fatigue, skill, and available time in the production systems. Generally, these mentioned factors have effects on human reliability and consequently change the reliability of production systems. Fatigue is a stochastic factor that changes according to other factors such as environmental conditions, work...
Objective: Fatigue is an integral part of sports that can affect athletic performance. The aim of this study was to determine the effect of shoulder girdle muscle fatigue on ground reaction force, Elbow and shoulder angle, and accuracy in handball penalty throws. Methods: 10 healthy male handball player with no history of injury in the shoulder (mean age 9/18 years, weight 79/72 kg, height 179...
Introduction: Cancer-related fatigue is one of the most common and debilitating complications of breast cancer. Cancer patients have been found to have lower levels of melatonin, and fatigue has been shown to be correlated with both melatonin and interleukin (IL-6) in cancer patients. This study aimed to evaluate the fatigue and serum level of IL-6 in response to melatonin treatment in breast c...
Introduction and purpose: Work fatigue is one of the main causes of workrelated musculoskeletal disorders and reduced productivity in industry. Therefore, it is vital to evaluate work fatigue, especially muscle fatigue, to determine the permissible workload. This study aimed to evaluate muscle fatigue of brick field workers. Methods: This cross-sectional study was co...
Background and Aim: Fatigue is one of the most common and debilitating symptoms of respiratory disorders in chemical veterans which affects many aspects of patient's life. This study was conducted to determine the effect of applying the energy conservation techniques on the fatigue of chemical veterans with respiratory disorders. Methods: This clinical trial study was conducted on 49 chemical v...
Background: Fatigue is one of the most prevalent and debilitating complications of cancer and its treatments. Patients with radiotherapy experience some degrees of fatigue. Complementary medicine methods, have reduced the complications of treatments in many disorders. Accordingly, the present study was conducted with the aim of comparing the effect of aromatherapy by inhalation and massage on R...
Objective: Dynamic stability in shoulder is an important element in life and any disorder in muscular function which helps maintain this stability leads to shoulder pathology. One of these disturbing factors is fatigue. According to the research team information until now there has not been a study investigated systematically the effect of fatigue on shoulder girdle biomechanics. So the purpose...
Background: Fatigue is among the most common complications for hemodialysis patients. The theory of unpleasant symptoms is associated with fatigue in hemodialysis patients. According to this theory, fatigue has three physical, mental and situational factors. Considering this theory, we aimed to determine some factors related to fatigue in hemodialysis patients. Methods: In this des...
In this research, the influence of bolt preload on the fatigue strength of 2024-T3 aluminium alloy double lap bolted joints has been studied experimentally and numerically. To do so, three sets of the specimens were prepared and each of them subjected to tightening torque of 1,2.5 and 5 N-m and then fatigue tests were conducted under various cyclic axial load levels. In the numerical method, th...
Background and purpose: Occupational fatigue is one of the main problems in work environments. Investigation of different aspects of occupational fatigue in drivers is of great benefit in reducing the level of road accidents. Materials and methods: We conducted a cross-sectional study in 420 drivers of heavy vehicles. Data was collected using a demographic and job information questionnaire a...
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