A new method for the calculation of constant supra-VO2peak power outputs

Barnett, Christopher, Jenkins, David, MacKinnon, Laurel and Green, Simon (1996) A new method for the calculation of constant supra-VO2peak power outputs. Medicine and Science in Sports and Exercise, 28 12: 1505-1509. doi:10.1097/00005768-199612000-00010


Author Barnett, Christopher
Jenkins, David
MacKinnon, Laurel
Green, Simon
Title A new method for the calculation of constant supra-VO2peak power outputs
Formatted title
A new method for the calculation of constant supra-VO2peak power outputs
Journal name Medicine and Science in Sports and Exercise   Check publisher's open access policy
ISSN 0195-9131
1530-0315
Publication date 1996-12-01
Year available 1996
Sub-type Article (original research)
DOI 10.1097/00005768-199612000-00010
Open Access Status Not yet assessed
Volume 28
Issue 12
Start page 1505
End page 1509
Total pages 5
Place of publication Philadelphia, PA, United States
Publisher Lippincott Williams & Wilkins
Language eng
Abstract This investigation compared the variance in times to exhaustion among four different methods of supra-VO2peak power output calculation. Ten male subjects cycled to exhaustion at power outputs equivalent to 1) 120% VO2peak, 2) 6 W . kg(-1), 3) 100% VO2peak + 10% of the peak anaerobic scope (PAS), and 4) 100% VO2peak + 20% of the mean anaerobic scope (MAS). PAS was defined as the difference between the peak power output (PPO) during a 30-s all-out cycle sprint and the power output at VO2peak. MAS was defined as the difference between the mean power output (MPO) during a 30-s all-out cycle sprint and the power output at VO2peak. While the mean times to exhaustion for the four methods were not significantly different, the supra-variance (P = 0.0173) in the times to exhaustion than did the power output equivalent to 20% MAS + 100% VO2peak (SE 16.2 s vs 6.9 s). The variance in time to exhaustion was significantly higher with the power output of 6 W . kg(-1) than for the remaining three methods, while the variance in times to exhaustion at a power output of 10% PAS + 100% VO2peak was not significantly different from either 120% VO2peak or 20% MAS + 100% VO2peak. These results indicate that a supra-VO2peak power output that accounts for both aerobic ability and anaerobic work capacity (20% MAS + 100% VO2peak) results in less variance in time to exhaustion than a method which extrapolates the submaximal power output-VO2 relationship to a supramaximal intensity (120% VO2peak).
Formatted abstract
This investigation compared the variance in times to exhaustion among four different methods of supra-V̇O2peak power output calculation. Ten male subjects cycled to exhaustion at power outputs equivalent to 1) 120% V̇O2peak, 2) 6 W·kg-1, 3) 100% V̇O2peak + 10% of the peak anaerobic scope (PAS), and 4) 100% VO2peak + 20% of the mean anaerobic scope (MAS). PAS was defined as the difference between the peak power output (PPO) during a 30-s all-out cycle sprint and the power output at VO2peak MAS was defined as the difference between the mean power output (MPO) during a 30-s all-out cycle sprint and the power output at VO2peak While the mean times to exhaustion for the four methods were not significantly different, the supra-VO2eak power output calculated as 120% VO2peak resulted in significantly more variance (P = 0.0173) in the times to exhaustion than did the power output equivalent to 20% MAS + 100% VO2peak (SE 16.2 s vs 6.9 s). The variance in time to exhaustion was significantly higher with the power output of 6 W·kg-1 than for the remaining three methods, while the variance in times to exhaustion at a power output of 10% PAS + 100% VO2peak was not significantly different from either 120% V̇O2peak or 20% MAS + 100% V̇O2peak. These results indicate that a supra-V̇O2peak power output that accounts for both aerobic ability and anaerobic work capacity (20% MAS + 100% V̇O2peak) results in less variance in time to exhaustion than a method which extrapolates the submaximal power output-V̇O2 relationship to a supramaximal intensity (120% VO2peak).
Keyword Cycling
Supramaximal exercise
Maximal exercise
Exhaustion
Peak power output
Mean power output
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Human Movement and Nutrition Sciences Publications
 
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