Sökning: "muscle fiber composition"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden muscle fiber composition.

  1. 1. Human muscle spindles : complex morphology and structural organisation

    Författare :Jing-Xia Liu; William K. Ovalle; Umeå universitet; []
    Nyckelord :human; muscle spindle; intrafusal fiber; aging; biceps brachii; deep muscles of the neck; MyHC; mATPase; SERCA; anatomi; Human Anatomy;

    Sammanfattning : Muscle spindles are skeletal muscle mechanoreceptors that mediate the stretch reflex and provide axial and limb position information to the central nervous system. They have been proposed to play a major role in the pathophysiology of muscle pain. LÄS MER

  3. 2. Middle ear mechanics : using temporal bone experiments to improve clinical methods

    Författare :Anton Rönnblom; Krister Tano; Magnus Von Unge; Mimmi Werner; Måns Eeg-Olofsson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Middle ear; conductive hearing loss; ossiculoplasty; human temporal bone; Laser doppler vibrometry; malleus fracture; middle ear muscles; muscle fiber composition; Oto-Rhino-Laryngology; oto-rhino-laryngologi;

    Sammanfattning : BackgroundThe middle ear transmits and amplifies sound vibrations from the tympanic membrane via three ossicles to the inner ear. Moreover, it contains two muscles, the stapedius muscle (SM) which protects the inner ear from loud noise, and the tensor tympani (TT) whose function is still debated. LÄS MER

  4. 3. Studies on the regulation of human skeletal muscle lipolysis in vivo

    Författare :Veronica Quisth; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Intramuscular triglycerides; skeletal muscle; lipolysis; insulin; catecholamines; microdialysis;

    Sammanfattning : Intramuscular triglyceride deposits are a significant energy source, and are considered to be of importance in the pathogenesis of skeletal muscle insulin resistance. In contrast to adipose tissue, the lipolytic process in skeletal muscle is not well characterised. LÄS MER

  5. 4. Effects of unloading on skeletal muscle mass and function in man

    Författare :Hans Berg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Atrophy; bedrest; concentric and isometric and eccentric muscle actions; disuse; electromyography; fatigue; fiber types and size; humans; inactivity; maximal voluntary force; recovery; skeletal muscle cross-sectional area; strength; suspension; tomog;

    Sammanfattning : An experimental human model of skeletal muscle unloading of one lower limb and confined bedrest were employed to quantitate the adaptive responses to 10 days, 4 or 6 wk of unloading in healthy humans on quadricep skeletal muscle mass and function. Muscle cross-sectional area (CSA) was assessed using tomographic imaging (CT, MRI). LÄS MER

  7. 5. Polymyositis and dermatomyositis : inflammation, muscle structure and immunosuppressive treatment

    Författare :Ingela Loell; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Polymyositis and dermatomyositis are chronic, inflammatory disorders characterized by muscle weakness, low muscle endurance and by inflammation in skeletal muscle tissues. The pathogenesis is not completely understood and several mechanisms are believed to be involved. LÄS MER