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Effect of blood lactate level on oxygen uptake at the offset of middle-intensity exercise

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Title: Effect of blood lactate level on oxygen uptake at the offset of middle-intensity exercise
Authors: Yano, T. Browse this author
Okuyama, T. Browse this author
Reihan, A. Browse this author
Ogata, H. Browse this author
Keywords: Oxygen uptake
Blood lactate
Offset of exercise
Issue Date: Sep-2004
Publisher: Institute of Sport
Journal Title: Biology of Sport
Volume: 21
Issue: 3
Start Page: 231
End Page: 240
Abstract: This study examines whether blood lactate level affects oxygen uptake at the offset of exercise (recovery ‡O2) in middle.intensity exercise. Work rates in the exercise were constants at 60, 100, 140, 180 and 220 watts, respectively. Recovery ‡O2 was approximated by a single or double exponential function to determine whether the kinetics of recovery ‡O2 has only a fast phase or fast and slow phases. Blood lactate was determined at rest and at 3 min during recovery. One phase was observed below a blood lactate level of 3 mM (low-intensity exercise), one or two phases observed at a blood lactate level between 3 and 6 mM (middle-intensity exercise) and only two phases were observed above 6 mM (high-intensity exercise). Thus, exercise intensities were divided into three levels. ‡O2 at 3 min during recovery was related to blood lactate at 3 min during recovery. The regression line obtained between them at 3 min during recovery ranged from the resting values of ‡O2 and blood lactate to the highest value in high exercise intensity. We concluded that blood lactate affects recovery ‡O2 even when it cannot be mathematically separated into two phases.
Type: article
URI: http://hdl.handle.net/2115/44019
Appears in Collections:教育学院・教育学研究院 (Graduate School of Education / Faculty of Education) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 矢野 徳郎

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