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ERIC Number: EJ967140
Record Type: Journal
Publication Date: 2011-Sep
Pages: 12
Abstractor: As Provided
Reference Count: 27
ISBN: N/A
ISSN: ISSN-0270-1367
A New Time Measurement Method Using a High-End Global Navigation Satellite System to Analyze Alpine Skiing
Supej, Matej; Holmberg, Hans-Christer
Research Quarterly for Exercise and Sport, v82 n3 p400-411 Sep 2011
Accurate time measurement is essential to temporal analysis in sport. This study aimed to (a) develop a new method for time computation from surveyed trajectories using a high-end global navigation satellite system (GNSS), (b) validate its precision by comparing GNSS with photocells, and (c) examine whether gate-to-gate times can provide more detailed information about alpine skiing performance. The results demonstrated small mean time differences with no systematic bias, with a velocity dependent scatter of time differences, which diminished at higher velocities. Furthermore, the multiple gate-to-gate and lag times demonstrated that the GNSS enabled a more detailed analysis compared to photocells. The measurements using GNSS showed high validity and potential as a tool for more specific analysis of performance in skiing. (Contains 5 figures and 1 table.)
American Alliance for Health, Physical Education, Recreation and Dance. 1900 Association Drive, Reston, VA 20191. Tel: 800-213-7193; Fax: 703-476-9527; e-mail: info@aahperd.org; Web site: http://www.aahperd.org
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Slovenia