VO2 kinetics and the O2 deficit in heavy exercise

Department of Nutrition, Food, and Exercise Science, The Florida State University, Tallahassee, Florida 32306 The purpose of this study was to examine a new method for calculating the O 2 deficit that considered the O 2 uptake ( O 2 ) kinetics during exercise as two separate phases in light of previ...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied physiology (1985) 2000-04, Vol.88 (4), p.1407-1412
Main Authors: Bearden, S. E, Moffatt, R. J
Format: Article
Language:English
Subjects:
Anatomy & physiology
Biological and medical sciences
Exercise
Fundamental and applied biological sciences. Psychology
Oxygen
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Department of Nutrition, Food, and Exercise Science, The Florida State University, Tallahassee, Florida 32306 The purpose of this study was to examine a new method for calculating the O 2 deficit that considered the O 2 uptake ( O 2 ) kinetics during exercise as two separate phases in light of previous research in which it was shown that the traditional O 2 deficit calculation overestimated the recovery O 2 consumption (ROC). Eight subjects completed exercise transitions between unloaded cycling and 25% (heavy, H) or 50% (very heavy, VH) of the difference between the lactic acid threshold (LAT) and peak O 2 for 8 min. The O 2 deficit, calculated in the traditional manner, was significantly greater than the measured ROC for both above-LAT exercises: 4.03   ± 1.01 vs. 2.63 ± 0.80 (SD) liters for VH and 2.36 ± 0.91 vs. 1.74 ± 0.63 liters for H for the O 2 deficit vs. ROC ( P  
ISSN:8750-7587
1522-1601