Sökning: "static contraction"

Hittade 5 uppsatser innehållade orden static contraction.

  1. 1. Online Variable Recruitment for Pneumatic Artificial Muscles with Springs

    Master-uppsats, KTH/Mekatronik

    Författare :Anthony Loccisano; [2020]
    Nyckelord :;

    Sammanfattning : Pneumatic artificial muscles (PAMs) have gained attention in the realm of soft robotics for their high power to weight ratio, low manufacturing cost, low weight, and relatively high compliance. This makes them appear as a great candidate for exoskeletons. LÄS MER

  3. 2. Does Static stretching and/or Muscle fatigue create a Cross-over effect? : An experimental study

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :Michelle Nordin; [2015]
    Nyckelord :static stretching; cross-over; muscle fatigue; cross-over effect; strength performance;

    Sammanfattning : Background: Extensive literature has described a decrease in force output performance in the local muscle groups after static stretching, and static stretching has therefore been recommended not to be performed during warm-ups. A recent study showed evidence of a cross-over effect in regard to static stretching, i.e. LÄS MER

  4. 3. Evaluation of the Carbonization of Thermo-Stabilized Lignin Fibers into Carbon Fibers

    Master-uppsats, Linköpings universitet/Kemi; Linköpings universitet/Tekniska fakulteten

    Författare :Henrik Kleinhans; [2015]
    Nyckelord :Lignin; Carbon Fibers; Carbonization; Stabilization; Uniaxial Tensile Testing; Thermomechanical Analysis TMA ; Thermogravimetric Analysis TGA ; Fourier Transform Infrared Spectroscopy FTIR ; Scanning Electron Microscope SEM ; Energy Dispersive X-ray Spectrometer EDS ;

    Sammanfattning : Thermo-stabilized lignin fibers from pH-fractionated softwood kraft lignin were carbonized to various temperatures during thermomechanical analysis (TMA) under static and increasing load and different rates of heating. The aim was to optimize the carbonization process to obtain suitable carbon fiber material with good mechanical strength potential (high tensile strength and high E-modulus). LÄS MER

  5. 4. Pain modulation in patients with chronic lumbar myalgia : An experimental study

    Magister-uppsats, Institutionen för idrottsvetenskap (ID)

    Författare :Karin Nygren; Charlotte Glimstedt; [2013]
    Nyckelord :Chronic low back pain; myalgia; presure pain thresholds; static contraction; endogenous pain modulation; exercise; Kronisk ländryggssmärta; myalgi; smärttröskel för tryck; statisk kontraktion; kroppsegen smärtmodulering; träning;

    Sammanfattning : Syfte: Syftet med denna studie var att undersöka hur statisk muskelkontraktion och cold pressor test påverkar kroppsegna smärtreglerande system (”Exercise induced analgesia” (EIA) och ”Conditioned pain modulation” (CPM)) hos patienter med kronisk ländryggssmärta kännetecknad av lumbal myalgi (LM) jämfört med friska kontroller. Försökspersoner och metod: Tjugosex friska köns- och åldersmatchade personer och tjugosex LM-patienter deltog. LÄS MER

  7. 5. X-ray absorption spectroscopy by means of Lanczos-chain driven damped coupled cluster response theory

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Thomas Fransson; [2011]
    Nyckelord :NEXAFS; coupled cluster; damped response theory; molecular properties; computational physics; theoretical chemistry; X-ray absorption spectroscopy;

    Sammanfattning : A novel method by which to calculate the near edge X-rayabsorption fine structure region of the X-ray absorption spectrum has been derived and implemented. By means of damped coupled cluster theory at coupled cluster levels CCS, CC2, CCSD and CCSDR(3), the spectra of neon and methane have been investigated. LÄS MER