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Physiological responses and cycle characteristics during double-poling versus diagonal-stride roller-skiing in junior cross-country skiers
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- Andersson, Erik P., 1984- (författare)
- Mittuniversitetet,Institutionen för hälsovetenskap,UiT The Arctic University of Norway, Tromsø, Norway,Swedish Winter Sports Research Centre
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- Hämberg, Irina (författare)
- Mittuniversitetet,Institutionen för hälsovetenskap,Swedish Winter Sports Research Centre
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- Do Nascimento Salvador, P. C. (författare)
- Federal University of Santa Catarina, Florianopolis, Brazil
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- (creator_code:org_t)
- 2021-04-24
- 2021
- Engelska.
- Ingår i: European Journal of Applied Physiology. - : Springer Science and Business Media LLC. - 1439-6319 .- 1439-6327. ; 121:8, s. 2229-2241
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Purpose: This study aimed to compare physiological factors and cycle characteristics during cross-country (XC) roller-skiing at matched inclines and speeds using the double-poling (DP) and diagonal-stride (DS) sub-techniques in junior female and male XC skiers. Methods: Twenty-three well-trained junior XC skiers (11 women, 12 men; age 18.2 ± 1.2 yr.) completed two treadmill roller-skiing tests in a randomized order using either DP or DS. The exercise protocols were identical and included a 5 min warm-up, 4 × 5 min submaximal stages, and an incremental test to exhaustion, all performed at a 5° incline. Results: No significant three-way interactions were observed between sex, submaximal exercise intensity, and sub-technique. For the pooled sample, higher values were observed for DP versus DS during submaximal exercise for the mean oxygen uptake kinetics response time (33%), energy cost (18%), heart rate (HR) (9%), blood lactate concentration (5.1 versus 2.1 mmol·L−1), rating of perceived exertion (12%), and cycle rate (25%), while cycle length was lower (19%) (all P < 0.001). During the time-to-exhaustion (TTE) test, peak oxygen uptake (V˙ O2peak), peak HR, and peak oxygen pulse were 8%, 2%, and 6% lower, respectively, for DP than DS, with a 29% shorter TTE during DP (pooled data, all P < 0.001). Conclusion: In well-trained junior XC skiers, DP was found to exert a greater physiological load than DS during uphill XC roller-skiing at submaximal intensities. During the TTE test, both female and male athletes were able to ski for longer and reached markedly higher V˙ O2peak values when using DS compared to DP.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Idrottsvetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Sport and Fitness Sciences (hsv//eng)
Nyckelord
- Cross-country skiing
- Cycle length
- Cycle rate
- Energy cost
- Gross efficiency
- Oxygen pulse
- Oxygen uptake kinetics
- Peak oxygen uptake
- Sex differences
- Winter sports
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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- European Journal of Applied Physiology (Sök värdpublikationen i LIBRIS)
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