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  • 1.
    Arndt, Anton
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    In vivo, intrinsic kinematics of the foot and ankle2012Conference paper (Other academic)
  • 2.
    Arndt, Anton
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    The effects of running in minimalistic shoes on non-uniform displacement in the Achilles tendon2019Conference paper (Refereed)
  • 3.
    Azcarate, Laura
    et al.
    KTH Royal Institute of Technology, Stockholm, Sweden.
    Sandamas, Paul
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Arndt, Anton
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Gutierrez-Farewik, Elena M.
    KTH Royal Institute of Technology, Stockholm, Sweden.
    Wang, Ruoli
    KTH, Royal Institute of Technology, Stockholm, Sweden.
    Muscle contributions to body mass centre acceleration during the first stance of sprint running2019Conference paper (Refereed)
  • 4.
    Hegyi, Andras
    et al.
    University of Jyväskylä, Finland.
    Peter, Annamaria
    University of Jyväskylä, Finland.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Arndt, Anton
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Finni, Taija
    University of Jyväskylä, Finland.
    Tarassova, Olga
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Cronin, Neil J.
    University of Jyväskylä, Finland.
    Ankle joint angle influences hamstring fine-wire and high-density electromyography activity in ramp isometric knee flexions2019Conference paper (Refereed)
  • 5.
    Welin, Louise
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Påverkas Transversus Abdominis anticipatoriska aktivering av långvarig ihållande aktivering?2007Independent thesis Advanced level (degree of Magister), 10 poäng / 15 hpStudent thesis
    Abstract [en]

    Aim

    The aim of the study was to investigate whether prolonged sustained sub maximal activation of Transversu Abdominis (TrA) influences its anticipitatory activation associated with fast voluntary shoulder flexion.

    Method

    In a standing position nine physically active female subjects (mean age of 26 ± 3 y) performed five rapid bilateral shoulder flexion from 0° to 90° shoulder flexion, before and after approximately 10 minutes of sustained submaximal activity in TrA as well as after 5 minutes rest. Electromyographic activity (EMG) was recorded using two intramuscular fine-wire electrodes placed in the right TrA and two surface electrodes placed over the Deltoideus anterior. Intra-abdominal pressure (IAP) was recorded intra-gastrically.

    Results

    TrA was activated prior to Deltoideus, before as well as after the sustained activation. The onset of TrA muscle activation relative to the onset of Deltoideus activation was not significantly different between before, directly after, or 5 minutes after the end of the sustained activity. The root mean square of the TrA EMG was unchanged both before arm lifts (baseline) and within the anticipatory window (100 ms before until 50 ms after Deltoideus onset). The IAP-value was unaffected in the baseline as well as in the anticipatory phase.

    Conclusion

    This study shows that the central nervous system begins activating the TrA slightly before initiating arm movements and that this behaviour is unaffected by a 10 min. sustained submaximal activation of TrA. There are no methods available for direct measurement of the mechanical output from TrA activation, but since IAP was unaffected it appears reasonable to conclude that the contractility of TrA is not deteriorated by the submaximal activation of TrA.

  • 6.
    Wolf, Peter
    et al.
    ETH Zürich, Switzerland.
    Arndt, Anton
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Nester, Christopher
    Liu, Anmin
    Jones, Richard
    Lundgren, Paul
    Lundberg, Arne
    In vivo Bewegungen der Fussknochen im Gehen und langsamen Joggen2012In: Orthopädieschuhtechnik, ISSN 0344-6026, no 2, p. 24-27Article in journal (Other academic)
1 - 6 of 6
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