Journal article

Critical power is not attained at the end of an isokinetic 90-second all-out test in children

Authors/Editors

No matching items found.



Research Areas

No matching items found.


Publication Details

Author list: McGawley, Kerry

Publication year: 2009

Start page: 379

End page: 385

Number of pages: 7

ISSN: 0264-0414

DOI: http://dx.doi.org/10.1080/02640410802641384


Abstract

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.


Projects

No matching items found.


Keywords

No matching items found.


Documents

No matching items found.


Last updated on 2017-06-10 at 05:07