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Critical power is not attained at the end of an isokinetic 90-second all-out test in children
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. (Swedish Winter Sports Research Centre)
2009 (English)In: Journal of Sports Sciences, ISSN 0264-0414, Vol. 27, no 4, 379-385 p.Article in journal (Refereed) Published
Abstract [en]

The purpose of this study was to establish whether critical power, as traditionally determined from the performance of three constant-load tests to exhaustion, is attained at the end of a 90-s all-out test in children. Sixteen healthy children (eight males and eight females; mean age 12.3 years, sx  = 0.1; body mass 39.6 kg, sx  = 1.8; peak VO2 2.0 litres · min−1, sx  = 0.1) completed an incremental test to exhaustion to determine peak oxygen uptake (peak VO2), three separate constant-load tests to exhaustion to calculate critical power, and an isokinetic 90-s all-out test. The end power of the 90-s test averaged over the last 10 s (140 W, sx  = 8) was significantly higher than critical power (105 W, sx  = 6; t = 6.8; P < 0.01), yet the two parameters were strongly correlated (r = 0.74; P < 0.01). After 60 s, there were no further reductions in power output during the 90-s test (P < 0.0001). In conclusion, at the end of a 90-s all-out test, children are able to produce power outputs well above critical power. This suggests that 90 s is not long enough to completely exhaust the anaerobic work capacity in children.

Place, publisher, year, edition, pages
2009. Vol. 27, no 4, 379-385 p.
Keyword [en]
power–time relationship, anaerobic work capacity, all-out test, energetic contribution
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-16260DOI: 10.1080/02640410802641384OAI: oai:DiVA.org:miun-16260DiVA: diva2:527388
Available from: 2012-05-23 Created: 2012-05-21 Last updated: 2012-05-23Bibliographically approved

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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
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  • asciidoc
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