Search for dissertations about: "EMG"

Showing result 1 - 5 of 132 swedish dissertations containing the word EMG.

  1. 1. Dynamic Changes in the Peripheral and the Central Nervous Systems in Patients with Prior Polio

    Author : Arne Sandberg; Erik Stålberg; Jože Trontelj; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurosciences; polio; prior polio; weakness; Macro EMG; EMG; post polio syndrome; Neurovetenskap; Neurology; Neurologi;

    Abstract : After the acute spell of poliomyelitis, patients commonly suffers from sequelae of weakness. Some of these patients experience new weakness after a time period of stable symptoms.The aim of this thesis was to evaluate the possible mechanisms for persistent weakness and development of new weakness in prior polio patients. READ MORE

  2. 2. Bias and Precision in Biomechanical Exposure Assessment : Making the Most of our Methods

    Author : Jennie A. Jackson; Svend Erik Mathiassen; Eva Vingård; Mikael Forsman; Peter Johnson; Jennie A Jackson; Högskolan i Gävle; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; measurement strategy; accuracy; inclinometry; electromyography; EMG; upper arm; shoulder; low back; lumbar; thoracic; Health-Promoting Work; Hälsofrämjande arbete;

    Abstract : Background: Insufficient exposure assessment is a suggested contributing factor to the current lack of clearly characterised relationships between occupational biomechanical risk factors and musculoskeletal disorders. Minimal attention has been paid to the potential bias of measurement tools from expected true values (i.e. READ MORE

  3. 3. Spatio-temporal processing of surface electromyographic signals : information on neuromuscular function and control

    Author : Christer Grönlund; Leif Sörnmo; Umeå universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; EMG; multichannel surface electromyography; motor unit action potentials; conduction velocity; muscle architecture; signal quality; spatial distributions; synchronization; muscle function; motor control; biomedicinsk strålningsvetenskap; Biomedical Radiation Science;

    Abstract : During muscle contraction, electrical signals are generated by the muscle cells. The analysis of those signals is called electromyography (EMG). The EMG signal is mainly determined by physiological factors including so called central factors (central nervous system origin) and peripheral factors (muscle tissue origin). READ MORE

  4. 4. Methods for measuring physical workload with relevance for musculoskeletal disorders of neck and upper limb

    Author : Gert-Åke Hansson; Avdelningen för arbets- och miljömedicin; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; shoulder; exposure-response relation; exposure; repetitiveness; movements; postures; questionnaire; EMG; electromyography; accelerometer; Goniometer; inclinometer; arm; wrist; hand.; Occupational health; industrial medicine; Yrkesmedicin; arbetsmiljömedicin;

    Abstract : Work-related musculoskeletal disorders of the neck and upper limb are a major problem. Women in repetitive manual work is one large affected group. Preventive actions are hampered by the lack of knowledge regarding quantitative exposure-response relations for physical workload. READ MORE

  5. 5. Postural and Muscular Responses of Car Occupants under Pre-Crash Conditions

    Author : Ghazaleh Ghaffari; Chalmers University of Technology; []
    Keywords : principal component analysis; linear mixed model; pre‐pretensioner belt; vehicle occupant kinematics; pre-crash; evasive maneuvers; human body model; EMG; lane change;

    Abstract : Advanced integrated safety technologies in modern cars such as collision avoidance intervention and pre-crash activated restraint systems require comprehensive research on how vehicle occupants respond to these systems. The aim of this thesis is to provide insights into car passengers’ body kinematics and muscle activations in representative pre-crash circumstances with respect to two belt configurations (i. READ MORE