Oxygen Uptake Kinetics in Severe Intensity Exercise

The purpose of this study was to describe mathematically the oxygen uptake kinetics during cycle ergometry, and to examine the effect of intensity on the kinetic responses within the severe domain. Sixteen volunteers performed a series of exercise tests at a range of intensities selected to elicit fatigue in ~3 to 10 min. A simple mono-exponential model effectively described the response across all intensities. There was a positive correlation between the response time and the time to fatigue, demonstrating that the maximal oxygen uptake was achieved faster at higher intensities within the severe domain. Models incorporating two components effectively described the responses only in tests lasting 8 min or more. It was concluded that there is a second, slow component in the oxygen uptake response only at the lower intensities within the severe domain.

Grantor dc:publisher

University of North Texas

Year dc:date

2000

Author dc:creator

• Blumoff, Sonja

Contributors dc:contributor

• Hill, David W.
• Goggin, Noreen
• Smith, Jimmy C.

• Oxygen in the body -- Measurement
• Exercise tests
• Fatigue
• severe domain
• oxygen uptake
• exercise research
• cycle ergometry

Statement dc:rights

• Public
• Copyright
• Blumoff, Sonja
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 47144625
untcat: b2300273
https://digital.library.unt.edu/ark:/67531/metadc2539/
ark: ark:/67531/metadc2539

OAI identifier oai:identifier

info:ark/67531/metadc2539