Sökning: "vastus lateralis"

Visar resultat 21 - 25 av 30 avhandlingar innehållade orden vastus lateralis.

  1. 21. Muscular aging and its relation to physical activity and function : longitudinal and cross-sectional analyses

    Författare :Elisabeth Skoglund; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : With age, muscle mass decreases and muscle function and strength decline, which is associated with loss of independence, hospitalization, morbidity and mortality. The aim of this thesis was to investigate the mechanisms involved in the age-related loss of muscle mass, physical function and strength by 1) studying gene expression and muscle morphology in muscle biopsies of vastus lateralis longitudinally (Study I) and muscle morphology cross-sectionally (Study II) in a cohort of older men, i. LÄS MER

  3. 22. Effects of unloading and resistance exercise on skeletal muscle function, size and composition in man

    Författare :Björn Alkner; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Atrophy; bed rest; confinement; countermeasure; electromyography; human; knee extensors; magnetic resonance imaging; microgravity; muscle function; myosin heavy chains; plantar flexors; resistance exercise; skeletal muscle; spaceflight; strength; training specificity; unloading;

    Sammanfattning : Exposure to microgravity, i.e., spaceflight, causes muscle unloading leading to muscle atrophy and dysfunction. Thus, there is a need for effective countermeasures to combat these effects. LÄS MER

  4. 23. Physical exercise and electrical stimulation in the management of metabolic, cardiovascular and skeletal-muscle alterations in people with tetraplegia

    Författare :Nils Hjeltnes; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Spinal cord injury; glucose metabolism; electrical stimulation; exercise; skeletal muscle; body composition; catecholamines; blood pressure.;

    Sammanfattning : Interruption of the spinal cord at the cervical level leads to permanent extensive motor paralysis, serious autonomic regulation deficits and profound short term and long term metabolic disorders. The defects play a decisive role for the tetraplegic individuals future function and health. LÄS MER

  5. 24. Re-evaluation of exercise-induced muscle soreness : an immunohistochemical and ultrastructural study

    Författare :Ji-Guo Yu; Bengt Saltin; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anatomy; Anatomi; Anatomy; Anatomi;

    Sammanfattning : Delayed onset muscle soreness (DOMS) is a familiar experience for the elite and novice athletes. Symptoms can range from muscle tenderness to severe deliberating pain. It is generally believed that eccentric contractions produce higher tension on muscle fibres and connective tissues than concentric and isometric contractions. LÄS MER

  7. 25. Exercise and angiogenic growth factors in human skeletal muscle

    Författare :Thomas Gustafsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Adapatation; angiogenesis; angiogenic growth factors; blood flow; gene expression; gene regulation; human; ischaemia; skeletal muscle; training;

    Sammanfattning : Long-term electrical stimulation and endurance exercise increase the amount of capillaries in skeletal muscle. VEGF-A is a well-characterized stimulatory angiogenic growth factor and has shown to play an important role in angiogenesis in pathological conditions in humans and in physiological conditions in animal models. LÄS MER