Journal of Applied Physiology AJP: Cell Physiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 19: 919-927, 1964;
8750-7587/64 $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 Rowell, L. B.
Right arrow Articles by Wang, Y.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Rowell, L. B.
Right arrow Articles by Wang, Y.

Limitations to prediction of maximal oxygen intake

Loring B. Rowell 1, Henry L. Taylor 1, and Yang Wang 1

1 Laboratory of Physiological Hygiene and Department of Medicine, University of Minnesota, Minneapolis, Minnesota

The predictability of maximal O2 intake (max Vo2) was studied in four groups of normal men, 18–24 years of age. Prediction of max Vo2 was made from pulse rate and Vo2 at a single submaximal workload at an ambient temperature of 78 F by use of the nomogram of Åstrand and Ryhming (1954) and underestimated actual max Vo2 by 27 ± 7% and 14 ± 7% in a sedentary group, before and after 2frac12–3 months of physical training, and by 5.6 ± 4% in a group of ten endurance athletes. Accuracy of prediction in all groups varied with approximation of pulse rate to 128 beats/min at 50% of max Vo2. Nonspecific stresses increased predictive errors in all groups. Constants b (slope) and A (intercept) in the regression equation Vo2 = bP – A (where P is pulse rate), were determined from Vo2 and pulse measured at four submaximal workloads requiring 13–28 ml O2/kg min. Prediction of max Vo2 by extrapolation of the slope to maximal pulse rate resulted in underestimation of 700–800 ml O2/min. Removal of 14% of circulating hemoglobin decreased max Vo2 by 4% but there was no change in pulse rates or predicted max Vo2. The relationship of RQ to Vo2 during work provided no reliable basis for prediction of max Vo2.

exercise pulse rate, oxygen intake, relationship; pulse rate, oxygen intake relationship in exercise; metabolic rate, maximal aerobic prediction of; aerobic metabolic rate, maximal, prediction of; phlebotomy, effect on maximal oxygen intake, pulse rate; blood loss, effect on maximal oxygen intake, pulse rate; training, effect on maximal oxygen intake, pulse rates; physical conditioning, effect on maximal oxygen intake, pulse rates

Submitted on October 4, 1963




This article has been cited by other articles:


Home page
 J. Physiol.Home page
S. P Mortensen, E. A Dawson, C. C Yoshiga, M. K Dalsgaard, R. Damsgaard, N. H Secher, and J. Gonzalez-Alonso
Limitations to systemic and locomotor limb muscle oxygen delivery and uptake during maximal exercise in humans
J. Physiol., July 1, 2005; 566(1): 273 - 285.
[Abstract] [Full Text] [PDF]

Home page
 ptjournalHome page
V. Noonan and E. Dean
Submaximal Exercise Testing: Clinical Application and Interpretation
Physical Therapy, August 1, 2000; 80(8): 782 - 807.
[Abstract] [Full Text] [PDF]

Home page
 JAMAHome page
K. H. Cooper and A. Zechner
Physical Fitness in United States and Austrian Military Personnel: A Comparative Study
JAMA, February 8, 1971; 215(6): 931 - 934.
[Abstract] [PDF]

Home page
 Arch Intern MedHome page
A. N. Goldbarg
Energy Cost of Sexual Activity
Arch Intern Med, September 1, 1970; 126(3): 526 - 526.
[Abstract] [PDF]


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