Investigation of individual strategies in the aerial phase in ski jumping.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
15 Dec 2023
15 Dec 2023
Historique:
received:
06
12
2022
accepted:
08
12
2023
medline:
19
12
2023
pubmed:
19
12
2023
entrez:
18
12
2023
Statut:
epublish
Résumé
The purpose of this investigation was to examine the performance strategy of three ski jumpers during the steady glide phase and explain how different strategical solutions can lead to jumps of roughly the same length. In this study, a total of 24 jumps performed by two World Cup (WC) athletes and one Continental Cup (COC) athlete were measured with a differential Global Navigation Satellite System (dGNSS) on a large ski jumping hill. For each athlete, the continuous position data, velocity, aerodynamic forces and lift-to-drag ratio (LD-ratio) were averaged and compared for the steady glide phase to examine individual jump strategies. The dGNSS yielded accurate measurements of trajectory, velocity and aerodynamic forces, revealing clear differences between the athletes. The largest differences were found between the WC athletes and the COC athlete. The WC athletes focused on maximizing horizontal velocity while the COC athlete minimized vertical velocity. This difference may be explained by the different hill sizes the athletes normally compete on. One of the WC athletes consistently increased their horizontal velocity during the end of the steady glide phase by maintaining a high LD-ratio, which highlights the effect of aerodynamics on the resulting velocity, trajectory and jump length.
Identifiants
pubmed: 38110490
doi: 10.1038/s41598-023-49683-0
pii: 10.1038/s41598-023-49683-0
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
22505Informations de copyright
© 2023. The Author(s).
Références
Müller, W. Determinants of ski-jump performance and implications for health, safety and fairness. Sports Med. 39, 85–106 (2009).
pubmed: 19203132
doi: 10.2165/00007256-200939020-00001
Schwameder, H. Biomechanics research in ski jumping, 1991–2006. Sports Biomech. 7, 114–136 (2008).
pubmed: 18341140
doi: 10.1080/14763140701687560
Elfmark, O. et al. Performance analysis in ski jumping with a differential global navigation satellite system and video-based pose estimation. Sensors 21, 5318 (2021).
pubmed: 34450758
pmcid: 8399095
doi: 10.3390/s21165318
Elfmark, O., Ettema, G., Jølstad, P. & Gilgien, M. Kinematic determination of the aerial phase in ski jumping. Sensors 22, 540 (2022).
pubmed: 35062498
pmcid: 8779385
doi: 10.3390/s22020540
Ettema, G., Braaten, S., Danielsen, J. & Fjeld, B. E. Imitation jumps in ski jumping: Technical execution and relationship to performance level. J. Sports Sci. 38, 2155–2160 (2020).
pubmed: 32543286
doi: 10.1080/02640414.2020.1776913
Virmavirta, M. et al. Take-off analysis of the Olympic ski jumping competition (HS-106 m). J. Biomech. 42, 1095–1101 (2009).
pubmed: 19349050
doi: 10.1016/j.jbiomech.2009.02.026
Virmavirta, M. & Koml, P. Measurement of take-off forces in ski jumping: Part I. Scand. J. of Med. Sci. Sports 3, 229–236 (1993).
doi: 10.1111/j.1600-0838.1993.tb00387.x
Virmavirta, M. & Komi, R. Measurement of take-off forces in ski jumping: Part II. Scand. J. of Med. Sci. Sports 3, 237–243 (1993).
doi: 10.1111/j.1600-0838.1993.tb00388.x
Lorenzetti, S. et al. Conditioning exercises in ski jumping: Biomechanical relationship of squat jumps, imitation jumps, and hill jumps. Sports Biomech. 18, 63–74 (2019).
pubmed: 29166832
doi: 10.1080/14763141.2017.1383506
Bessone, V., Petrat, J., Seiberl, W. & Schwirtz, A. Analysis of landing in ski jumping by means of inertial sensors and force insoles. Multidiscipl. Dig. Publ. Inst. Proc. 2, 311 (2018).
Bessone, V., Petrat, J. & Schwirtz, A. Ground reaction forces and kinematics of ski jump landing using wearable sensors. Sensors 19, 2011 (2019).
pubmed: 31035683
pmcid: 6539877
doi: 10.3390/s19092011
Virmavirta, M. & Komi, P. V. Plantar pressures during ski jumping take-off. J. Appl. Biomech. 16, 320–326 (2000).
doi: 10.1123/jab.16.3.320
Chardonnens, J., Favre, J., Cuendet, F., Gremion, G. & Aminian, K. A system to measure the kinematics during the entire ski jump sequence using inertial sensors. J. Biomech. 46, 56–62 (2013).
pubmed: 23123073
doi: 10.1016/j.jbiomech.2012.10.005
Chardonnens, J., Favre, J., Cuendet, F., Gremion, G. & Aminian, K. Measurement of the dynamics in ski jumping using a wearable inertial sensor-based system. J. Sports Sci. 32, 591–600 (2014).
pubmed: 24117224
doi: 10.1080/02640414.2013.845679
Logar, G. & Munih, M. Estimation of joint forces and moments for the in-run and take-off in ski jumping based on measurements with wearable inertial sensors. Sensors 15, 11258–11276 (2015).
pubmed: 25985167
pmcid: 4481886
doi: 10.3390/s150511258
Groh, B. H. et al. Automated ski velocity and jump length determination in ski jumping based on unobtrusive and wearable sensors. Proc. ACM Interact. Mob. Wear. Ubiquit. Technol. 1, 1–17 (2017).
doi: 10.1145/3130918
Arndt, A., Brüggemann, G.-P., Virmavirta, M. & Komi, P. Techniques used by Olympic ski jumpers in the transition from takeoff to early flight. J. Appl. Biomech. 11, 224–237 (1995).
doi: 10.1123/jab.11.2.224
Müller, W., Platzer, D. & Schmölzer, B. Dynamics of human flight on skis: Improvements in safety and fairness in ski jumping. J. Biomech. 29, 1061–1068 (1996).
pubmed: 8817373
doi: 10.1016/0021-9290(95)00169-7
Schmölzer, B. & Müller, W. The importance of being light: Aerodynamic forces and weight in ski jumping. J. Biomech. 35, 1059–1069 (2002).
pubmed: 12126665
doi: 10.1016/S0021-9290(02)00066-0
Schmölzer, B. & Müller, W. Individual flight styles in ski jumping: Results obtained during Olympic games competitions. J. Biomech. 38, 1055–1065 (2005).
pubmed: 15797587
doi: 10.1016/j.jbiomech.2004.05.038
Schwameder, H. et al. Kinematic characteristics of the early flight phase in ski-jumping. Sci. Skiing 3, 381–391 (2005).
Virmavirta, M. et al. Characteristics of the early flight phase in the Olympic ski jumping competition. J. Biomech. 38, 2157–2163 (2005).
pubmed: 16154402
doi: 10.1016/j.jbiomech.2004.10.004
Larsson, P. & Henriksson-Larsén, K. The use of dGPS and simultaneous metabolic measurements during orienteering. Med. Sci. Sports Exerc. 33, 1919–1924 (2001).
pubmed: 11689744
doi: 10.1097/00005768-200111000-00018
Zhang, K. et al. GNSS for sports-sailing and rowing perspectives. J. Glob. Position. Syst. 3, 280–289 (2004).
doi: 10.5081/jgps.3.1.280
Spörri, J., Kröll, J., Schwameder, H. & Müller, E. The role of path length-and speed-related factors for the enhancement of section performance in alpine giant slalom. Eur. J. Sport Sci. 18, 911–919 (2018).
pubmed: 29582711
doi: 10.1080/17461391.2018.1453870
Supej, M. & Holmberg, H.-C. A new time measurement method using a high-end global navigation satellite system to analyze alpine skiing. Res. Q. Exerc. Sport 82, 400–411 (2011).
pubmed: 21957698
doi: 10.1080/02701367.2011.10599772
Jølstad, P. A. H., Reid, R. C., Gjevestad, J. G. O. & Gilgien, M. Validity of the AdMos, advanced sport instruments, GNSS sensor for use in alpine skiing. Remote Sens. 14, 22 (2021).
doi: 10.3390/rs14010022
Andersson, E. et al. Analysis of sprint cross-country skiing using a differential global navigation satellite system. Eur. J. Appl. Physiol. 110, 585–595 (2010).
pubmed: 20571822
doi: 10.1007/s00421-010-1535-2
Blumenbach, T. High precision kinematic gps positioning of ski jumpers. in Proceedings of the 17th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2004), 761–765 (2004).
Gilgien, M., Spörri, J., Limpach, P., Geiger, A. & Müller, E. The effect of different global navigation satellite system methods on positioning accuracy in elite alpine skiing. Sensors 14, 18433–18453 (2014).
pubmed: 25285461
pmcid: 4239874
doi: 10.3390/s141018433
Elfmark, O., Ettema, G. & Gilgien, M. Assessment of the steady glide phase in ski jumping. J. Biomech. 1, 111139 (2022).
doi: 10.1016/j.jbiomech.2022.111139
World Medical Association Declaration of Helsinki. Ethical principles for medical research involving human subjects. Bull. World Health Org. 79, 373–374 (2001).
Skaloud, J. & Limpach, P. Synergy of cp-dgps, accelerometry and magnetic sensors for precise trajectography in ski racing. in Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003), 2173–2181 (2003).
Wägli, A. Trajectory determination and analysis in sports by satellite and inertial navigation (EPFL, 2009).
Anderson, J. D. Jr. Fundamentals of Aerodynamics (McGraw-Hill Education, 2010).
Elfmark, O., Giljarhus, K. E. T., Liland, F. F., Oggiano, L. & Reid, R. Aerodynamic investigation of tucked positions in alpine skiing. J. Biomech. 119, 110327 (2021).
pubmed: 33684652
doi: 10.1016/j.jbiomech.2021.110327
Gilgien, M., Spörri, J., Kröll, J. & Müller, E. Effect of ski geometry and standing height on kinetic energy: Equipment designed to reduce risk of severe traumatic injuries in alpine downhill ski racing. Br. J. Sports Med. 50, 8–13 (2016).
pubmed: 26702013
doi: 10.1136/bjsports-2015-095465
Adler, R. J. The Geometry of Random Fields (SIAM, 2010).
doi: 10.1137/1.9780898718980
Serrien, B., Ooijen, J., Goossens, M. & Baeyens, J.-P. A motion analysis in the volleyball spike-part 1: Three dimensional kinematics and performance. Int. J. Hum. Movem. Sports Sci. 4, 70–82 (2016).
Gardan, N. et al. Numerical investigation of the early flight phase in ski-jumping. J. Biomech. 59, 29–34 (2017).
pubmed: 28558914
doi: 10.1016/j.jbiomech.2017.05.013
Jung, A., Staat, M. & Müller, W. Flight style optimization in ski jumping on normal, large, and ski flying hills. J. Biomech. 47, 716–722 (2014).
pubmed: 24388531
doi: 10.1016/j.jbiomech.2013.11.021
Jung, A., Müller, W. & Virmavirta, M. A heuristic model-based approach for compensating wind effects in ski jumping. J. Biomech. 125, 110585 (2021).
pubmed: 34233216
doi: 10.1016/j.jbiomech.2021.110585
Virmavirta, M. & Kivekäs, J. The effect of wind on jumping distance in ski jumping-fairness assessed. Sports Biomech. 11, 358–369 (2012).
pubmed: 23072046
doi: 10.1080/14763141.2011.637119
Elfmark, O. & Ettema, G. Aerodynamic investigation of the inrun position in ski jumping. Sports Biomech. 1, 1–15 (2021).
doi: 10.1080/14763141.2020.1871503