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The effects of strength training versus ski-ergometer training on double-poling capacity of elite junior cross-country skiers
Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.ORCID iD: 0000-0002-7178-5357
Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.
Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.
Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.
2017 (English)In: European Journal of Applied Physiology, ISSN 1439-6319, E-ISSN 1439-6327, Vol. 117, no 8, 1523-1532 p.Article in journal (Refereed) Published
Abstract [en]

Purpose

To compare the effects of strength training versus ski-ergometer training on double-poling gross efficiency (GE), maximal speed (Vmax), peak oxygen uptake (V˙O2peak" role="presentation" style="box-sizing: border-box; display: inline-table; line-height: normal; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">V˙O2peakV˙O2peak) for elite male and female junior cross-country skiers.

Methods

Thirty-three elite junior cross-country skiers completed a 6-week training-intervention period with two additional 40-min training sessions per week. The participants were matched in pairs and within each pair randomly assigned to either a strength-training group (STR) or a ski-ergometer-training group (ERG). Before and after the intervention, the participants completed three treadmill roller-skiing tests to determine GE, Vmax, and V˙O2peak" role="presentation" style="box-sizing: border-box; display: inline-table; line-height: normal; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">V˙O2peakV˙O2peak. Mixed between-within subjects analysis of variance (ANOVA) was conducted to evaluate differences between and within groups. Paired samples t tests were used as post hoc tests to investigate within-group differences.

Results

Both groups improved their Vmax and V&#x02D9;O2peak" role="presentation" style="box-sizing: border-box; display: inline-table; line-height: normal; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">V˙O2peakV˙O2peak expressed absolutely (all P < 0.01). For the gender-specific sub-groups, it was found that the female skiers in both groups improved both Vmax and V&#x02D9;O2peak" role="presentation" style="box-sizing: border-box; display: inline-table; line-height: normal; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">V˙O2peakV˙O2peak expressed absolutely (all P < 0.05), whereas the only within-group differences found for the men were improvements of Vmax in the STR group. No between-group differences were found for any of the investigated variables.

Conclusions

Physiological and performance-related variables of importance for skiers were improved for both training regimes. The results demonstrate that the female skiers’ physiological adaptations to training, in general, were greater than those of the men. The magnitude of the physiological adaptations was similar for both training regimes.

Place, publisher, year, edition, pages
2017. Vol. 117, no 8, 1523-1532 p.
Keyword [en]
Cross-country skiing; VO2peak; double polnig; gross efficiency; maximal speed; gendeer differences
National Category
Sport and Fitness Sciences
Research subject
Health and Welfare
Identifiers
URN: urn:nbn:se:du-25100DOI: 10.1007/s00421-017-3621-1ISI: 000407726800001OAI: oai:DiVA.org:du-25100DiVA: diva2:1105727
Available from: 2017-06-05 Created: 2017-06-05 Last updated: 2017-09-07Bibliographically approved

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