نتایج جستجو برای: muscle fatigue
تعداد نتایج: 390924 فیلتر نتایج به سال:
Muscle fatigue is considered as one of the major risk factor causing Musculo-Skeletal Disorder (MSD). To avoid MSD the study of muscle fatigue is very important. For the study of muscle fatigue a new model is developed by modifying the Ruina Ma’s dynamic muscle fatigue model and introducing the muscle co-contraction factor ‘n’ in this model.The aim of this paper is to experimentally validate a ...
Background and Aim: Endogenous opioids and addictive opiate drugs change many body functions. . Previous studies have referred to the effects of morphine on smooth and pulmonary muscles ., but the effects of opioids on skeletal muscles is not known well. Thus, the current study aimed at assessing the effect of a single dose of morphine on muscle fatigue in male rats. Materials and Meth...
Objective: This study aimed to examine the effect of fatigue on postural balance of young women using Electromyography (EMG) of lower extremity muscles and measuring the foot plantar Center of Pressure (COP) displacement. Methods: Participants were 10 young women (mean age, 26.4±3.01 years; mean weight, 65.5±5.75 kg; mean height, 165±2.61; BMI, 24.08±2.08 kg/m2) with no history of lower limb i...
Muscle fatigue results in reduced force generating capacity of individual motor units [1] and increased muscle response time [2]. It may also alter muscle coordination [3] and ultimately affect performance. Some have suggested that under muscular fatigue, subjects alter their coordination strategies to achieve the same task goal [1, 4]. However, adaptations in coordination in response to muscle...
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...
Introduction: The manufacturing, service professions, and other occupations commonly require their employees to spend more than 2 hours of their workday in an upright position which can potentially cause temporary or permanent health effects. The objective of this study is to determine the effect of anti-fatigue mats on leg muscle discomfort and muscle activity due to prolonged standing. Mater...
1. The question whether respiratory muscle fatigue ever causes respiratory failure is over 40 years old, but we still have no definitive answer to this question. Skeletal muscle fatigue occurs when the rate of energy consumption of the muscle is greater than the energy supplied, so that energy stores are utilized and eventually become depleted. 2. Five factors which are important in the develop...
Abstract Objective: proprioception is part of the body's sensory system who is responsible for collecting information for the central nervous system to inform about the status of different parts of the body relative to each other Fatigue can causes disorder in the proprioception. In this research, the effect of quadriceps and hamstrings muscles fatigue on knee proprioceptive function in healt...
سابقه هدف: msیکی از شایعترین اختلالات نورولوژیک ناتوان کننده است که با تریاد التهاب ، demyelination ، وگلیوزیس نورونها مشخص می شود . بیش از 2.5 میلیون نفر در جهان به این بیماری مبتلا هستند و بیشترین شیوع آن در بالغین جوان است . یکی از شایعترین علایم ms ، خستگی می باشد که حدود 90 % بیماران به آن دچارند. با وجودیکه fatigue ، شایعترین علت ناتوانی بیماران ms می باشد ، هنوز پزشکان در تشخیص و درمان آ...
Aims Musculoskeletal disorders (MSDs) are common in farmers due to the high workload in agriculture. Because several factors, such as physical, personal, and psychological factors in saffron harvesters can influence persons’ physical conditions and expose them to the risk of MSDs, the present study aimed to investigate muscle fatigue and determine the prevalence of MSDs and related factors amon...
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