Search for dissertations about: "Isometric Contraction"

Showing result 1 - 5 of 34 swedish dissertations containing the words Isometric Contraction.

  2. 1. Electromyography and bite force studies of muscular function and dysfunction in masticatory muscles

    Author : Catharina Hagberg; []
    Keywords : Electromyography; bite force; contraction; isometric; masticatory muscles; mastication; intramuscular injections;

    Abstract : Electromyographic (EMG) activity versus bite force was studied during a gradually increased isometric contraction up to maximal effort for patients with painful masseter muscles and referents. The masseter muscle, the anterior temporal muscle and the descending part of the trapezius muscle were chosen for the recordings. READ MORE

  4. 2. Modelling of muscular force induced by non-isometric contraction

    Author : Natalia Kosterina; Anders Eriksson; Michael Günther; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Skeletal muscle; Muscular force; Concentric contractions; Eccentric con- tractions; History effect; Force modification; Muscle model; Musculoskeletal model;

    Abstract : The main objective of the study was to investigate and simulate skeletal muscleforce production during and after isometric contractions, active muscle lengtheningand active muscle shortening. The motivation behind this work was to improve thedominant model of muscle force generation based on the theories of Hill from 1938. READ MORE

  5. 3. Mechanochemical Modeling of Smooth Muscle Activation

    Author : Sae-Il Murtada; Gerhard A. Holzapfel; Robert McMeeking; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biomechanics; Muscle contraction; Smooth muscle; Contractile unit; Filament overlap; Intracellular calcium; Carotid artery; Mathematical model;

    Abstract : Smooth muscle has an important role in several physiological processes, where it regulates the wall tension and the size of hollow organs. In blood vessels, the contraction and relaxation of smooth muscle contribute to the mechanical stability of the vessel wall and determines the diameter. READ MORE

  6. 4. Neuromuscular adaptations to muscle fatigue during submaximal isometric contractions in man

    Author : Wolfgang N Löscher; Karolinska Institutet; Karolinska Institutet; []
    Keywords : isometric; electromyography; tremor; H-reflex; twitch; motoneuron; recruitment; la-afferents; recurrent inhibition; central fatigue; excitatory drive; gastrocnemius; soleus; triceps surae; tendon vibration; ischemia; Renshaw cellStockholm 1995;

    Abstract : During a sustained contraction, the force producing capacity of a muscle gradually decreases. In order to maintain a constant force output, the neuromuscular system has to adapt to the contractile fatigue process. READ MORE

  7. 5. High-Density Electromyography-Based Methods for Joint Torque Prediction and Motor Unit Behavior Observation

    Author : Asta Kizyte; Ruoli Wang; Elena Gutierrez-Farewik; Christian Antfolk; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ankle; isometric contractions; machine learning; neuromuscular control; spinal cord injury; Fotled; isometriska kontraktioner; maskininlärning; neuromuskulär kontroll; ryggmärgsskada; Teknisk mekanik; Engineering Mechanics;

    Abstract : Electromyography (EMG) is a technique that measures the electrical activity of muscles. It reflects muscle activation and provides an interface to the central nervous system at the level of the muscle or individual motor units, which helps us understand the mechanisms of muscle force production, control, and coordination. READ MORE