Abstract：
:Appropriate technique choice may affect ski performance. V2 ski skating technique has in recent years become more widely applied on uphill terrain where V1 technique has typically been used. This investigation compared physiological responses of skiers using V1 and V2 techniques during uphill treadmill roller-skiing. Part 1: six skiers from B-level national ski teams participated in technique comparisons performed under six uphill conditions (3, 4, 5, 6, 7, and 8 degrees) with speeds selected so external work was approximately constant for each slope. The 12 trials of 5-min steady-state skating were randomly distributed across two test sessions of six trials each. Heart rate (HR), oxygen consumption (VO(2)), blood lactate concentration (La) and rating of perceived exertion (RPE) were measured. Part 2: 15 skiers from A-level and B-level national ski teams participated in V1-V2 technique comparison on constant slope (5 degrees) with five speeds ranging from 2.25 to 3.25 m s(-1). In two test sessions of V1 or V2 skating (randomly assigned for 2 days) similar characteristics as Part 1 were measured. Across all variables consistent responses were observed for both the experimental parts. As slope increased, V2 skating became increasingly costly compared to V1 skating. At constant slope across the range of speeds, V2 was more costly than V1 skating. This suggests that it may be disadvantageous for skiers to use V2 instead of V1 skating technique on moderate to steep uphill terrain. Doing so may result in elevated HR, La, and VO(2) compared to V1 skating at the same speed.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Kvamme B,Jakobsen V,Hetland S,Smith Gdoi
10.1007/s00421-005-1332-5keywords:
subject
Has Abstractpub_date
2005-10-01 00:00:00pages
205-12issue
2-3eissn
1439-6319issn
1439-6327journal_volume
95pub_type
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journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
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