Kinematic Chains in Ski Jumping In-run Posture [PDF]
Journal of Human Kinetics, 2013 Abstract The concept of kinematic chains has been systematically applied to biological systems since the 1950s. The course of a ski jump can be characterized as a change between closed and open kinematic chains. The purpose of this study was to determine a relationship between adjacent segments within the ski jumper’s body’s kinematic chain during
Janurová, Eva +5 more
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Numerical analysis of ski suits surface roughness effects on aerodynamics during the in-run phase of ski jumping [PDF]
Scientific ReportsThe study employs the shearstress transport (SST) turbulence model within a computational fluid dynamics (CFD) framework to investigate the influence of skijumping suit surface roughness on aerodynamic performance during the in-run phase.
Hong Lin +4 more
doaj +2 more sources
Optimization of ski jumping in-run posture using computational fluid dynamics [PDF]
Scientific ReportsWhile aerodynamic optimization during ski jumping flight phases is well-studied, critical knowledge gaps persist regarding posture-fluid interactions in the in-run phase – particularly the dominance of drag dynamics over lift enhancement for speed ...
Wenhan Liu +3 more
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Associations Between Physiological Determinants and GNSS-Derived Technical Characteristics in Cross-Country Roller Skiing [PDF]
SensorsThis study aimed to examine how physiological determinants are associated with skiing technique and race performance in cross-country roller skiing by integrating motion data obtained via a Global Navigation Satellite System (GNSS) with laboratory-based ...
Shunya Uda +7 more
doaj +2 more sources
Joint kinematic responses of Olympic medallist skiers to repeated slalom runs [PDF]
Experimental PhysiologyThis case study aims to examine changes in the lower limb joint kinematic profile and performance stability induced by repeated ski runs in two world‐class alpine skiers.
Marine Alhammoud +11 more
doaj +2 more sources
Consuming Beetroot Juice Improves Slalom Performance and Reduces Muscle Soreness in Alpine Skiers under Hypoxic Conditions [PDF]
Current Developments in NutritionBackground: Beetroot juice (BRJ) supplementation has been shown to increase sports performance under hypoxic conditions and to improve athletes’ recovery.
Alireza Ahmadpour +2 more
doaj +2 more sources
The Snow-Friction of Freestyle Skis and Snowboards Predicted From Snow Physical Quantities
Frontiers in Mechanical Engineering, 2021 Previous research has shown that friction between ski and snow can vary substantially due to changes in snow conditions. The variation of friction affects the speed a freestyle skier or snowboarder (athlete) reaches during the in-run of a jump.
Fabian Wolfsperger +4 more
doaj +1 more source
A method of deriving operation-specific ski run classes for avalanche risk management decisions in mechanized skiing [PDF]
Natural Hazards and Earth System Sciences, 2019 An in-depth understanding of the nature of the available terrain and its exposure to avalanche hazard is crucial for making informed risk management decisions when travelling in the backcountry.
R. Sterchi, P. Haegeli
doaj +1 more source
Data in Brief, 2021 The data are related to two research articles: “The relative importance of ski resort-and weather-related characteristics when going alpine skiing” [1] and “Optimal pricing of alpine ski passes in the case of crowdedness and reduced skiing capacity” [2].
Erik Haugom +2 more
doaj +1 more source
Revegetation of ski runs in Serbia: Case studies of Mts. Stara Planina and Divčibare [PDF]
Archives of Biological Sciences, 2011 Revegetation is the most sustainable method of soil stabilization at ski runs. In order to establish a stable plant community, it is recommended to use native species. However, non-native species are most often used.
Bjedov Ivana +5 more
doaj +1 more source