Journal of Applied Physiology Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 66: 1620-1625, 1989;
8750-7587/89 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Lambert, M. I.
Right arrow Articles by Noakes, T. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Lambert, M. I.
Right arrow Articles by Noakes, T. D.

Journal of Applied Physiology, Vol 66, Issue 4 1620-1625, Copyright © 1989 by American Physiological Society

ARTICLES

Dissociation of changes in VO2 max, muscle QO2, and performance with training in rats

M. I. Lambert and T. D. Noakes
Department of Physiology, University of Cape Town Medical School, Observatory, South Africa.

Before the start and after 4, 8, and 12 wk of a treadmill training program male rats were randomly selected and tested for running performance, maximum O2 consumption (VO2 max), running economy (VO2 submax), and skeletal muscle oxidative capacity (QO2). Data were compared with values from untrained weight-matched control rats. Maximum running time to exhaustion increased significantly (P less than 0.01) by 4 wk and again at 12 wk (P less than 0.01). Submaximal running endurance increased by 120 (4 wk), 320 (8 wk), and 372% (12 wk) (P less than 0.01). VO2 max was increased only at 12 wk (86.0 +/- 2.7 vs. 75.5 +/- 1.9 ml O2.kg-1.min-1); VO2 submax was decreased at 4 and 8 wk but not at 12 wk. Soleus QO2 was unchanged after 4 wk of training and increased by 50% at 8 wk and by 77% at 12 wk. This study is the first to show a dissociation in both the time course and the magnitude of longitudinal changes in VO2 max, VO2 submax, QO2, and maximal and submaximal running performance. We conclude that factors other than those measured explain the improvement in running performance that resulted from endurance training in these rats.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
M. L. Batista Jr., R. V. T. Santos, E. M. Oliveira, M. C. L. Seelaender, and L. F. B. P. Costa Rosa
Endurance training restores peritoneal macrophage function in post-MI congestive heart failure rats
J Appl Physiol, May 1, 2007; 102(5): 2033 - 2039.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
A. J. Nelson, J. M. Juraska, T. I. Musch, and G. A. Iwamoto
Neuroplastic adaptations to exercise: neuronal remodeling in cardiorespiratory and locomotor areas
J Appl Physiol, December 1, 2005; 99(6): 2312 - 2322.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
U. Wisloff, J. Helgerud, O. J. Kemi, and O. Ellingsen
Intensity-controlled treadmill running in rats: {V}O2 max and cardiac hypertrophy
Am J Physiol Heart Circ Physiol, March 1, 2001; 280(3): H1301 - H1310.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online