نتایج جستجو برای: muscle activity
تعداد نتایج: 1408919 فیلتر نتایج به سال:
Background: In spite of the increasing degree of automation in industry, manual material handling (MMH) is still performed in many occupational settings. The aim of the current study was to determine the maximum acceptable weight of lift using psychophysical and electromyography indices.Methods: This experimental study was conducted among 15 male students recruited from Tehran University of Med...
the reliability of surface electromyographic (semg) variables during swallowing determines the potential usefulness of these measures in swallowing assessment and treatment. this study aimed to establish the reliability of the semg measures of the swallowing function of muscles during different swallowing conditions in healthy young and old volunteers. two groups of volunteers (24 older adults,...
Background. Irisin is the result of the proteolysis of fibronectin type III domain-containing protein 5, the levels of which are determined by physical activity. Objective(s). This study aims to identify changes in FNDC5 gene expression and the heart muscle irisin levels in male rats following 8 weeks resistance and endurance training. Methods. Fifteen male rats (10-12 weeks old and 331.8&plu...
Background and purpose: Reduction of muscle mass occurs in some models of muscle atrophy during mechanical unloading status and MST1 and MAFbx genes are believed to have a role. In the present study, the effect of reduced physical activity in the form of spinal nerve ligation (SNL) after a period of endurance training (ET) on the expression of MST1 and MAFbx genes were examined in the rat plant...
Background and aims : Long term working in a static and awkward posture is known as an important risk factorof work related musculoskeletal disorders in hand carpet weavers. Inappropriate workstation and awkward posture can increase the electrical activity and fatigue in muscles. The aim of this study was the measurement of muscle load and fatigue by surface electromyography and Borg CR-10 sc...
Introdution: Muscle weakness that is caused by cancer called Cachexia. One of the causes of the formation of the cachexia is the change in protein degradation, and the ubiquitous protease and Autophagy Lysosomes system is the most important protein breakdown system. Resistance training has been one the best stimulator of increasing muscular mass. Therefore, the purpose of this study was to inve...
Introduction: Low back pain is one of the most common musculoskeletal disorders leading to disability around the world. Several studies have suggested that prolonged computer/ laptop work contributes to the development of low back pain and discomfort. The results of the studies conducted on the association of back discomfort and muscle activity are contradictory. Thus, the present study aims to...
Objectives: Mouse is one of the most important data entry devices for computers. Undesirable and prolonged postures during work with the computer mouse increase workload, muscle aches and upper extremity musculoskeletal disorders. The present study aimed to evaluate and compare muscle activity during the use of 4 types of mouse, including trackball, trackpad, slanted and standard by Electromyog...
Introduction and purpose: Decreased physical activity due to sciatic nerve ligation (SNL) cause muscle atrophy. The purpose of the present study was to investigate the effect of decreased physical activity in the form of spinal nerve ligation (SNL) on the expression of muscle atrophy-related genes (TWEAK and Fn14) after resistance, endurance and combined exercises. Materials and Methods: Thirty...
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