Blar i Brage NIH på forfatter "Kösters, Alexander"

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    • Alpine skiing with total knee arthroplasty (ASWAP): effect on tendon properties 

      Kösters, Alexander; Rieder, Florian; Wiesinger, Hans-Peter; Dorn, U.; Hofstaedter, T.; Fink, Christian; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2015-06-10)
      The aim of this study was to investigate the effect of alpine skiing on patellar tendon properties in patients with total knee arthroplasty (TKA). Thirty-one adults (70.4 ± 4.7 years) with unilateral TKA were recruited ...

    • Alpine skiing with total knee arthroplasty (ASWAP): muscular adaptations 

      Rieder, Florian; Kösters, Alexander; Wiesinger, Hans-Peter; Dorn, U.; Hofstaedter, T.; Fink, Christian; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2015-06-17)
      This study investigated the effectiveness of recreational skiing as an intervention to improve quadriceps muscle architecture, strength, and antagonistic co-activation in patients with unilateral total knee arthroplasty ...

    • Are sport-specific profiles of tendon stiffness and cross-sectional area determined by structural or functional integrity? 

      Wiesinger, Hans-Peter; Rieder, Florian; Kösters, Alexander; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2016-06-30)
      The present study aimed to determine whether distinct sets of tendon properties are seen in athletes engaged in sports with contrasting requirements for tendon function and structural integrity. Patellar and Achilles tendon ...

    • Effects of increased loading on in vivo tendon properties: a systematic review 

      Wiesinger, Hans-Peter; Kösters, Alexander; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2015-09)
      Introduction: In vivo measurements have been used in the past two decades to investigate the effects of increased loading on tendon properties, yet the current understanding of tendon macroscopic changes to training is ...

    • Immediate effects of whole body vibration on patellar tendon properties and knee extension torque 

      Rieder, Florian; Wiesinger, Hans-Peter; Kösters, Alexander; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2016-03)
      Purpose: Reports about the immediate effects of whole body vibration (WBV) exposure upon torque production capacity are inconsistent. However, the changes in the torque–angle relationship observed by some authors after WBV ...

    • Influence of loading rate on patellar tendon mechanical properties in vivo 

      Kösters, Alexander; Wiesinger, Hans-Peter; Bojsen-Møller, Jens; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2014-03)
      Background: Rate-dependent properties of tendons have consistently been observed in vitro but in vivo studies comparing the effects of loading duration on this feature remain conflicting. The main purpose of the present ...

    • Mechanical and material tendon properties in patients with proximal patellar tendinopathy 

      Wiesinger, Hans-Peter; Seynnes, Olivier R.; Kösters, Alexander; Müller, Erich; Rieder, Florian (Peer reviewed; Journal article, 2020)
      Introduction: The effect of chronic patellar tendinopathy on tissue function and integrity is currently unclear and underinvestigated. The aim of this cohort comparison was to examine morphological, material, and mechanical ...

    • Sport-specific capacity to use elastic energy in the patellar and Achilles tendons of elite athletes 

      Wiesinger, Hans-Peter; Rieder, Florian; Kösters, Alexander; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2017)
      Introduction: During running and jumping activities, elastic energy is utilized to enhance muscle mechanical output and efficiency. However, training-induced variations in tendon spring-like properties remain under-investigated. ...

    • Whole body vibration for chronic patellar tendinopathy: A randomized equivalence trial 

      Rieder, Florian; Wiesinger, Hans-Peter; Herfert, Jürgen; Lampl, Katrin; Hecht, Stefan; Niebauer, Josef; Maffulli, Nicola; Kösters, Alexander; Müller, Erich; Seynnes, Olivier R. (Peer reviewed; Journal article, 2022)
      Purpose: Whole body vibration (WBV) triggers anabolic responses in various tissues, including tendons, without requiring high force production. In this waitlist-controlled equivalence trial, we tested its clinical effectiveness ...

    • Whole-body vibration training induces hypertrophy of the human patellar tendon 

      Rieder, Florian; Wiesinger, Hans-Peter; Kösters, Alexander; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2015-07-15)
      Animal studies suggest that regular exposure to whole-body vibration (WBV) induces an anabolic response in bone and tendon. However, the effects of this type of intervention on human tendon properties and its influence on ...