Browsing Brage NIH by Author "Müller, Erich"
Now showing items 1-20 of 22
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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 ... -
Analysis of a severe head injury in world cup alpine skiing
Yamazaki, Junya; Gilgien, Matthias; Kleiven, Svein; McIntosh, Andrew S.; Nachbauer, Werner; Müller, Erich; Bere, Tone Tufte; Bahr, Roald; Krosshaug, Tron (Journal article; Peer reviewed, 2015-06)Traumatic brain injury (TBI) is the leading cause of death in alpine skiing. It has been found that helmet use can reduce the incidence of head injuries between 15% and 60%. However, knowledge on optimal helmet performance ... -
Application of dGNSS in alpine ski racing: Basis for evaluating physical demands and safety
Gilgien, Matthias; Kröll, Josef; Spörri, Jörg; Crivelli, Philip; Müller, Erich (Journal article; Peer reviewed, 2018)External forces, such as ground reaction force or air drag acting on athletes' bodies in sports, determine the sport-specific demands on athletes' physical fitness. In order to establish appropriate physical conditioning ... -
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 ... -
Characterization of course and terrain and their effect on skier speed in World Cup alpine ski racing.
Gilgien, Matthias; Crivelli, Philip; Spörri, Jörg; Kröll, Josef; Müller, Erich (Journal article; Peer reviewed, 2015-03-11)World Cup (WC) alpine ski racing consists of four main competition disciplines (slalom, giant slalom, super-G and downhill), each with specific course and terrain characteristics. The International Ski Federation (FIS) has ... -
Effect of ski geometry and standing height on kinetic energy: equipment designed to reduce risk of severe traumatic injuries in alpine downhill ski racing.
Gilgien, Matthias; Spörri, Jörg; Kröll, Josef; Müller, Erich (Journal article; Peer reviewed, 2016)Background: Injuries in downhill (DH) are often related to high speed and, therefore, to high energy and forces which are involved in injury situations. Yet to date, no study has investigated the effect of ski geometry and ... -
Effect of ski geometry on aggressive ski behaviour and visual aesthetics: equipment designed to reduce risk of severe traumatic knee injuries in alpine giant slalom ski racing.
Kröll, Josef; Spörri, Jörg; Gilgien, Matthias; Schwameder, Hermann; Müller, Erich (Journal article; Peer reviewed, 2015-11-24)Background/Aim: Aggressive ski-snow interaction is characterised by direct force transmission and difficulty of getting the ski off its edge once the ski is carving. This behaviour has been suggested to be a main contributor ... -
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 ... -
How to Prevent Injuries in Alpine Ski Racing: What Do We Know and Where Do We Go from Here
Spörri, Jörg; Kröll, Josef; Gilgien, Matthias; Müller, Erich (Journal article; Peer reviewed, 2016-08-01)Alpine ski racing is known to be a sport with a high risk of injury and a high proportion of time-loss injuries. In recent years, substantial research efforts with regard to injury epidemiology, injury etiology, potential ... -
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 ... -
Injury prevention in Super-G alpine ski racing through course design
Gilgien, Matthias; Crivelli, Philip; Kröll, Josef; Müller, Erich; Spörri, Jörg; Luteberget, Live (Peer reviewed; Journal article, 2021)In Super-G alpine ski racing mean speed is nearly as high as in Downhill. Hence, the energy dissipated in typical impact accidents is similar. However, unlike Downhill, on Super-G courses no training runs are performed. ... -
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 ... -
Mechanics of turning and jumping and skier speed are associated with injury risk in men's World Cup alpine skiing: a comparison between the competition disciplines
Gilgien, Matthias; Spörri, Jörg; Kröll, Josef; Crivelli, Philip; Müller, Erich (Journal article; Peer reviewed, 2014-01-31)Background/aim: In alpine ski racing, there is limited information about skiers’ mechanical characteristics and their relation to injury risk, in particular for World Cup (WC) competitions. Hence, current findings from ... -
Sidecut radius and kinetic energy: equipment designed to reduce risk of severe traumatic knee injuries in alpine giant slalom ski racing.
Kröll, Josef; Spörri, Jörg; Gilgien, Matthias; Schwameder, Hermann; Müller, Erich (Journal article; Peer reviewed, 2016-02-04)Background: Kinetic energy (Ekin) increases with speed by the power of 2 and is considered a major risk factor for injuries in alpine ski racing. There is no empirical knowledge about the effect of ski geometry on Ekin. ... -
Sidecut radius and the mechanics of turning—equipment designed to reduce risk of severe traumatic knee injuries in alpine giant slalom ski racing.
Spörri, Jörg; Kröll, Josef; Gilgien, Matthias; Müller, Erich (Journal article; Peer reviewed, 2016)Background: There is limited empirical knowledge about the effect of ski geometry, particularly in the context of injury prevention in alpine ski racing. We investigated the effect of sidecut radius on biomechanical variables ... -
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. ... -
The effect of different global navigation satellite system methods on positioning accuracy in elite alpine skiing
Gilgien, Matthias; Spörri, Jörgen; Limpach, Philippe; Geiger, Alain; Müller, Erich (Journal article; Peer reviewed, 2014-10-03)In sport science, Global Navigation Satellite Systems (GNSS) are frequently applied to capture athletes’ position, velocity and acceleration. Application of GNSS includes a large range of different GNSS technologies and ... -
Three-dimensional body and centre of mass kinematics in alpine ski racing using differential GNSS and inertial sensors
Fasel, Benedikt; Spörri, Jörg; Gilgien, Matthias; Boffi, Geo; Chardonnens, Julien; Müller, Erich; Aminian, Kamiar (Journal article; Peer reviewed, 2016-08-22)A key point in human movement analysis is measuring the trajectory of a person’s center of mass (CoM). For outdoor applications, differential Global Navigation Satellite Systems (GNSS) can be used for tracking persons since ...