Blar i Brage NIH på forfatter "Ettema, Gertjan"
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Assessment of the steady glide phase in ski jumping
Elfmark, Ola; Ettema, Gertjan; Gilgien, Matthias (Peer reviewed; Journal article, 2022)The purpose of this investigation was to compare how key variables of the steady glide phase relate to performance in the two hill sizes used in World Cup and Olympic competitions, i.e, normal and large hills. In this ... -
Kinematic determination of the aerial phase in ski jumping
Elfmark, Ola; Ettema, Gertjan; Gilgien, Matthias; Jølstad, Petter Andre Husevåg (Peer reviewed; Journal article, 2022)The purpose of this study was to find a generic method to determine the aerial phase of ski jumping in which the athlete is in a steady gliding condition, commonly known as the ‘stable flight’ phase. The aerial phase of ... -
Performance analysis in ski jumping with a differential global navigation satellite system and video-based pose estimation
Elfmark, Ola; Ettema, Gertjan; Groos, Daniel; Ihlen, Espen Alexander F.; Velta, Rune; Haugen, Per; Bråten, Steinar; Gilgien, Matthias (Peer reviewed; Journal article, 2021)This study investigated the explanatory power of a sensor fusion of two complementary methods to explain performance and its underlying mechanisms in ski jumping. A differential Global Navigation Satellite System (dGNSS) ... -
The study of movement skills in sports: Toward an integrative approach
Loland, Sigmund; Ettema, Gertjan; Sandbakk, Øyvind Bucher (Peer reviewed; Journal article, 2023)The article commences with a fundamental objective: to comprehend movement skills in sports in a manner that can bridge the dualist gap between experiential qualities observed in practice and theoretical and mechanistic ...