Search for dissertations about: "emg thesis"

Showing result 16 - 20 of 136 swedish dissertations containing the words emg thesis.

2. 16. Muscle Thixotropy : Implications for Human Motor Control

   Author : Hans Axelson; Karl-Erik Hagbarth; Mikael Elam; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurosciences; Motor control; Skeletal muscle; Thixotropy; History-dependent; EMG; Voluntary contractions; Neurovetenskap; Neurology; Neurologi;

   Abstract : Human skeletal muscles possess thixotropic, i.e. history-dependent mechanical properties. This means that the degree of passive muscle stiffness and resting tension is dependent on the immediately preceding history of contractions and length changes. READ MORE

4. 17. Occupational health risks in dentistry - musculoskeletal disorders and neuropathy in relation to exposure to physical workload, vibrations and mercury

   Author : Ingrid Åkesson; Avdelningen för arbets- och miljömedicin; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; prospective follow-up study .; cross-sectional; inclinometer; electrogoniometer; EMG; physical exposure; tactilometry; physical examination; diagnoses; neck upper limb; sensorineural; Key words: Dentistry; musculoskeletal; Occupational health; industrial medicine; Yrkesmedicin; arbetsmiljömedicin;

   Abstract : The aim of the thesis was to focus on the occupational health risks in dentistry with emphasis on musculoskeletal disorders in the neck and upper limbs and neuropathy in the hands, in relation to exposure to physical workload, vibration and mercury. An increased high frequency of long-lasting and wide-spread musculoskeletal symptoms in the neck and shoulder regions (58-75% during the past 12 months) was found in dentists and dental hygienists compared to different referent groups; furthermore, wrist/hand (46-59%) and hip (19-27%) disorders as well in female dentists and dental hygienists. READ MORE

5. 18. On the role of transversus abdominis in trunk motor control

   Author : Martin Eriksson Crommert; Peter Engfeldt; Alf Thorstensson; Maria Ekblom; Birgitta Öberg; Örebro universitet; []
   Keywords : transversus abdominis; trunk muscles; EMG; intramuscular; IAP; motor control; postural control; spine stability; postural demand; MEDICINE; MEDICIN; Medicin; Medicine;

   Abstract : All trunk muscles are important contributors to spine stability. However, the deepest abdominal muscle, transversus abdominis (TrA), with its characteristically horizontal fibre orientation seems to serve a unique function in trunk motor control. READ MORE

6. 19. Volunteer Muscle Activity in Dynamic Events. Input Data for Human Body Models

   Author : Jóna Marin Olafsdottir; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; emergency braking; ative human body model; multidirectional perturbations; EMG; occupant kinematics; seatbelt pre-tension; reflex; validation data;

   Abstract : Human body models (HBMs) are virtual human surrogates used to predict kinematic and injury responses during motor vehicle crashes. In recent years, active musculature has been incorporated into HBMs for enhanced biofidelity in simulated emergency scenarios, in particular low-severity crashes and pre-crash situations, where occupant responses are influenced by muscle tension. READ MORE

7. 20. Context dependent adaptation of biting behavior in human

   Author : Anders Johansson; Benoni Edin; Karl-Gunnar Westberg; Peter Svensson; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; EMG; bite force; human; mastication; muscles; jaw opening reflex; motor control; reflex modulation; periodontal attachment loss; periodontitis; fysiologi; Physiology;

   Abstract : The focus of this thesis was to study an action that humans perform regularly, namely, to hold a morsel between the teeth and split it into smaller pieces. Three different issues related to this biting behavior were addressed:  (1) the effect of redu­c­ed perio­dontal tissues on food holding and splitting behavior; (2) the behavioral conse­quences of performing different bite tasks with different functional requirements, i. READ MORE