Search for dissertations about: "plantar flexors"

Showing result 1 - 5 of 6 swedish dissertations containing the words plantar flexors.

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

    Author : Björn Alkner; Karolinska Institutet; Karolinska Institutet; []
    Keywords : 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;

    Abstract : 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. READ MORE

  4. 2. Ankle fractures. Outcome and rehabilitation. A physiotherapeutic perspective

    Author : Gertrud Nilsson; Människan i rörelse: hälsa och rehabilitering; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; subjective outcome; ankle fracture; physical outcome; rehabilitation; surgical treatment; balance; quality of life; age; training programme;

    Abstract : The overall aim of this work was to evaluate symptoms, subjectively scored function and physical outcome in patients with surgically treated ankle fractures. Another aim was also to evaluate the effects of a standardised but individually suited supervised training program. READ MORE

  5. 3. On spinal mechanisms for reflex control in man : modulation of Ia-afferent excitation with changes in muscle length, activation level and fatigue

    Author : Maria M. Nordlund; Gymnastik- och idrottshögskolan; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Electromyography; eccentric; concentric; presynaptic inhibition; H-reflex; central fatigue; twitch interpolation; muscle spindle; Medicin Teknik; Medicine Technology; Electromyography; eccentric; concentric; presynaptic inhibition; H-reflex; central fatigue; twitch interpolation; muscle spindle;

    Abstract : To control muscle force, neural activation has to take alterations in muscle mechanics into account. This thesis assesses modulations in excitatory efficacy of Ia-afferents during muscle length changes at different levels of voluntary activation and during fatigue. READ MORE

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

    Author : Christer Johansson; Umeå universitet; []
    Keywords : 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;

    Abstract : 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. READ MORE

  7. 5. Evaluation of surface electromyography and aspects of muscle strength in persons without motor impairment and in children with hemiplegic cerebral palsy

    Author : Barbro Larsson; Katharina Stibrant-Sunnerhagen; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Impaired muscle function significantly affects persons with Cerebral Palsy (CP), affects that include muscle strength, fatigue and endurance. This thesis evaluates a test method, an endurance test, and estimates aspects of muscle fatigue and muscle endurance in persons without impaired muscle function and in children with CP. READ MORE