Sökning: "muscle fibre"

Visar resultat 11 - 15 av 73 avhandlingar innehållade orden muscle fibre.

  1. 11. The role of Six1 in muscle progenitor cells and the establishment of fast-twitch muscle fibres

    Författare :Hanna Nord; Jonas von Hofsten; Freek van Eeden; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Myogenesis; zebrafish; muscle fibre; patterning; fmyhc; myl1; Six1; Pax7;

    Sammanfattning : Myogenesis is the process of skeletal muscle tissue formation where committed muscle progenitor cells differentiate into skeletal muscle fibres. Depending on the instructive cues the muscle progenitor cells receive they will differentiate into specific fibre types with different properties. LÄS MER

  3. 12. MUSCLE TONE IMBALANCE IN HUMAN UPPER EXTREMITY An experimental study of muscle adaptation to altered tension

    Författare :Fredrik Einarsson; Göteborgs universitet; []
    Nyckelord :muscle biopsy; freeze storage; upper extremity; shoulder; human muscle; sarcomere; stress-strain relationship; stress relaxation; stiffness; elasticity; mechanical testing; morphology; spasticity; obstetric brachial plexus palsy; rotator cuff tear; tendon transfer;

    Sammanfattning : Aim: The aim of this thesis was to improve outcome after tendon transfer and rotator cuff surgery by investigating the impact on response to passive mechanical testing and change in structural characteristics associated with longstanding changes in the tension of skeletal muscle in the human upper extremities in vivo. Patients and methods: The investigational method was in vitro assessment of human upper extremity muscles. LÄS MER

  4. 13. Elite sprinters, ice hockey players, orienteers and marathon runners : isokinetic leg muscle performance in relation to muscle structure and training

    Författare :Christer Johansson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Electromyography; endurance; enzyme histocytochemistry; fatigue; ice hockey; isokinetic; muscle contraction; OBLA; orienteering; running;

    Sammanfattning : In male athletes from different sports, isokinetic knee extensor, and in orienteers also plantar flexor peak torque (PT), contractional work (CW) and integrated surface electromyograms (iEMG) were analysed.Single contraction PT, CW and iEMG in sprinters and marathon runners were signi­ficantly correlated to the cross-sectional area (CSA) of m. LÄS MER

  5. 14. Changes in muscle torque with age : relationships to muscle fibre and electro-physiological characteristics in 20- to 70-year-old men and women

    Författare :Octavia Borges; Uppsala universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER

  7. 15. Intensive care Muscle Wasting and Weakness : Underlying Mechanisms, Muscle Specific Differences and a Specific Intervention Strategy

    Författare :Guillaume Renaud; Lars Larsson; Oliver Friedrich; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : The intensive care unit (ICU) condition, i.e., immobilisation, sedation and mechanical ventilation, often results in severe muscle wasting and weakness as well as a specific acquired myopathy, i.e. LÄS MER