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


     

J Appl Physiol 53: 1310-1313, 1982;
8750-7587/82 $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 Costill, D. L.
Right arrow Articles by Katz, A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Costill, D. L.
Right arrow Articles by Katz, A.

Journal of Applied Physiology, Vol 53, Issue 5 1310-1313, Copyright © 1982 by American Physiological Society

ARTICLES

Determination of human muscle pH in needle-biopsy specimens

D. L. Costill, R. L. Sharp, W. J. Fink and A. Katz

The homogenate technique for the determination of muscle pH (pHm) has been studied to assess the influence of delayed freezing and the composition and volume of the homogenizing medium on human muscle pH at rest and after exhaustive exercise. It was concluded that resting muscle samples must be frozen within 2 s to prevent falsely high pHm values. Muscle specimens used for lactate determinations (HLam), on the other hand, can be delayed in freezing for up to 30 s without altering the HLam content. A 30- to 40-s delay in biopsying the muscle after the cessation of exhaustive exercise does not appear to alter pHm or HLam values. Although the homogenate method does not provide information relative to the status of selected muscle fibers, it does offer a reliable sensitive measure of mean changes in the acidification of muscle with intense exercise.


This article has been cited by other articles:


Home page
 J. Gerontol. A Biol. Sci. Med. Sci.Home page
M. W. Norton, W. Mejia, and R. J.M. McCarter
Age, Fatigue, and Excitation-Contraction Coupling in Masseter Muscles of Rats
J. Gerontol. A Biol. Sci. Med. Sci., February 1, 2001; 56(2): 58B - 65.
[Abstract] [Full Text]

Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
M. Samaja, S. Allibardi, G. Milano, G. Neri, B. Grassi, L. B. Gladden, and M. C. Hogan
Differential depression of myocardial function and metabolism by lactate and H+
Am J Physiol Heart Circ Physiol, January 1, 1999; 276(1): H3 - H8.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
L. D. Kesl and R. L. Engen
Effects of NaHCO3 loading on acid-base balance, lactate concentration, and performance in racing greyhounds
J Appl Physiol, September 1, 1998; 85(3): 1037 - 1043.
[Abstract] [Full Text] [PDF]


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