Search for dissertations about: "maximal voluntary contraction"

Showing result 1 - 5 of 15 swedish dissertations containing the words maximal voluntary contraction.

  2. 1. Classification of muscle stretch receptor afferents in humans

    Author : Benoni B. Edin; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Muscle spindles; Golgi tendon organs; Classification of muscle receptors; Microneurography; Human hand; Stretch sensitization; Voluntary contraction; Static position sensitivity; Fusimotor control;

    Abstract : The response patterns of human stretch receptors in the finger extensor muscles of the forearm were studied using the microneurography technique. Single-unit recordings were obtained from one-hundred and twenty-four afferents. READ MORE

  4. 2. Identification of single motor units in ultrafast ultrasound image sequences of voluntary skeletal muscle contractions

    Author : Robin Rohlén; Christer Grönlund; Jun Yu; Dario Farina; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ultrafast ultrasound; motor units; decomposition; skeletal muscle; voluntary contractions; electromyography; twitch; imaging;

    Abstract : The central nervous system controls human force production by successive recruitment of motor units in the skeletal muscles and changing their neural firing rate. The motor unit comprises a motoneuron, its innervated muscle fibers, and its axons. READ MORE

  5. 3. Voluntary activation of skeletal muscle in young and old women and men

    Author : Michael Miller; Människan i rörelse: hälsa och rehabilitering; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physical medicine; pain measurement; electric stimulation; muscle; kinesitherapy; revalidation; rehabilitation; Rehabilitering medicinsk och social ;

    Abstract : The evaluation of skeletal muscle strength is an important part of the physiotherapist’s clinical examination in order to plan and execute appropriate interventions. This requires the objective assessment of muscle strength and the determination of the underlying factors of muscle weakness. READ MORE

  6. 4. Lumbar muscle fatigue and recovery : evaluation of electromyography in patients with long-term low-back pain and in healthy subjects

    Author : Britt Elfving; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Disability; electromyography; exponential; force level; gender; healthy subjects; interelectrode distance; low-back pain; erector spinae; maximal voluntary contraction; muscle fatigue; recovery; reliability; validity.;

    Abstract : Background: Lumbar muscle function is considered to be an important component of longterm low- back pain. The change in the median frequency of the power spectrum of the electromyographic (EMG) signal is commonly used to estimate muscle fatigue. READ MORE

  7. 5. Asymmetric lateral loading of the human trunk

    Author : Qiang-Min Huang; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Eccentric; concentric; isokinetic; electromyography; co-activation; trunk; spinal biomechanics; contraction patterns; lateral bending; lifting and lowering; balance; kinematics; postural control; IAP; support translation.;

    Abstract : The overall aim of this thesis was to characterize the biomechanics and neuromuscular control of the human trunk in response to asymmetric lateral loading. The pulling force and strength capacities as well as muscle activation patterns, trunk kinematics and postural balance in relation to lateral trunk flexion and loading were given special consideration. READ MORE