umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Maximal Lactate Steady State and Lactate Thresholds in the Cross-Country Skiing Sub-Technique Double Poling
Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Sports medicine.
Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Sports medicine.
2019 (English)In: International Journal of Exercise Science, ISSN 1939-795X, Vol. 12, no 2, p. 57-68Article in journal (Refereed) Published
Abstract [en]

The response of blood lactate concentration (BLC) to exercise is a commonly used approach to set training intensities and to determine the anaerobic threshold, which are important in evaluation of endurance exercise performance. The maximal lactate steady state (MLSS) is defined as the highest workload or BLC that can be maintained without continual lactate accumulation over time. The aim of this study was to investigate MLSS in the cross-country skiing sub-technique double poling and to assess the validity of a fixed blood lactate threshold (OBLAand the 45° tangent of the lactate curve). Eight well-trained cross-country skiers (age = 27.6±8.8 years [mean±SD], body mass = 73.9±6.2 kg, height = 179.3±7.0 cm) performed an incremental test to determine OBLA and Individual Anaerobic Threshold (IAnT) and several constant workload tests of 30 min to determine the MLSS. Lactate concentration at MLSS in double poling was 6.7±1.3 mmol·L-1 which was significantly higher compared to OBLA(p<0.001) and IAnT (p<0.01). Despite significant correlations in velocities between MLSS-IAnT and MLSS-OBLA(r=0.95/0.95, p<0.001), significant (p<0.01) differences between MLSS (21.4±2.8 km·h-1) versus IAnT (20.6±3.6 km·h-1) and OBLA(19.9±3.0 km·h-1) was observed. It was concluded that both OBLA and IAnT underestimate MLSS in double poling. A fixed value of 7 mmol·L-1 would be more appropriate in lactate testing of cross-country skiers using the double poling technique, yet dissuaded because of intra-individual variations. Direct determination of MLSS is the recommended approach for useful exercise thresholds, important for training interventions in elite cross-country skiers.

Place, publisher, year, edition, pages
2019. Vol. 12, no 2, p. 57-68
Keywords [en]
Onset of blood lactate, exercise test, submaximal exercise, exercise intensity, exercise prescription, lactate kinetics, anaerobic threshold
National Category
Sport and Fitness Sciences
Research subject
Sports Medicine
Identifiers
URN: urn:nbn:se:umu:diva-155369OAI: oai:DiVA.org:umu-155369DiVA, id: diva2:1278446
Available from: 2019-01-14 Created: 2019-01-14 Last updated: 2019-01-14Bibliographically approved

Open Access in DiVA

fulltext(394 kB)65 downloads
File information
File name FULLTEXT01.pdfFile size 394 kBChecksum SHA-512
340890f27d312e28694b9a4f1ca5a4d4a318ba58bb05f5881217a80fe04ceb88ada6979442efb86a9ee3e4366862c33eec7a07d0428d99fc7f1c6f58c5804c76
Type fulltextMimetype application/pdf

Other links

URL

Authority records BETA

Jakobsson, JohanMalm, Christer

Search in DiVA

By author/editor
Jakobsson, JohanMalm, Christer
By organisation
Sports medicine
In the same journal
International Journal of Exercise Science
Sport and Fitness Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 65 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 321 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf