Journal
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
Volume 23, Issue 1, Pages e38-e47Publisher
WILEY
DOI: 10.1111/sms.12007
Keywords
alpine skiing; force; GPS; Global Navigation Satellite System; mechanics; ski racing; wind tunnel
Categories
Funding
- Swedish National Centre for Research in Sports
- Swedish Olympic Committee
- Foundation for Financing Sport Organizations in Slovenia
- Slovenian Research Agency
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This investigation was designed to (a) develop an individualized mechanical model for measuring aerodynamic drag (Fd) while ski racing through multiple gates, (b) estimate energy dissipation (Ed) caused by Fd and compare this to the total energy loss (Et), and (c) investigate the relative contribution of Ed/Et to performance during giant slalom skiing (GS). Nine elite skiers were monitored in different positions and with different wind velocities in a wind tunnel, as well as during GS and straight downhill skiing employing a Global Navigation Satellite System. On the basis of the wind tunnel measurements, a linear regression model of drag coefficient multiplied by cross-sectional area as a function of shoulder height was established for each skier (r?>?0.94, all P?
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