An analysis of changes in blood pH following exhausting activity in the starry flounder, Platichthys stellatus.

C. M. Wood, B. R. McMahon, D. G. McDonald

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

Exhausting activity results in a marked and immediate drop in blood pH which gradually returns to normal over the following 6h. The acidosis is caused largely by elevated Pco2 levels, which vary inversely with pH. Blood lactate concentration increases slowly, reaching a maximum at 2--4h post-exercise, and contributes significantly to the acidosis only late in the recovery period. The slow time course of lactic acid release into the blood permits temporal separation of the peak metabolic acidosis from the peak respiratory acidosis. Evidence is presented that a metabolic acid other than lactic also makes a modest contribution to the pH depression during the recovery period.

Original languageEnglish
Pages (from-to)173-185
Number of pages13
JournalJournal of Experimental Biology
Volume69
StatePublished - Aug 1 1977

Fingerprint

Platichthys stellatus
Flounder
blood pH
acidosis
Acidosis
Lactic Acid
blood
Respiratory Acidosis
acid
lactic acid
lactates
exercise
milk
analysis
acids

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Agricultural and Biological Sciences (miscellaneous)

Cite this

An analysis of changes in blood pH following exhausting activity in the starry flounder, Platichthys stellatus. / Wood, C. M.; McMahon, B. R.; McDonald, D. G.

In: Journal of Experimental Biology, Vol. 69, 01.08.1977, p. 173-185.

Research output: Contribution to journalArticle

@article{c1f06a31a0cd402cb3ebaa1a8b6f72ba,
title = "An analysis of changes in blood pH following exhausting activity in the starry flounder, Platichthys stellatus.",
abstract = "Exhausting activity results in a marked and immediate drop in blood pH which gradually returns to normal over the following 6h. The acidosis is caused largely by elevated Pco2 levels, which vary inversely with pH. Blood lactate concentration increases slowly, reaching a maximum at 2--4h post-exercise, and contributes significantly to the acidosis only late in the recovery period. The slow time course of lactic acid release into the blood permits temporal separation of the peak metabolic acidosis from the peak respiratory acidosis. Evidence is presented that a metabolic acid other than lactic also makes a modest contribution to the pH depression during the recovery period.",
author = "Wood, {C. M.} and McMahon, {B. R.} and McDonald, {D. G.}",
year = "1977",
month = "8",
day = "1",
language = "English",
volume = "69",
pages = "173--185",
journal = "Journal of Experimental Biology",
issn = "0022-0949",
publisher = "Company of Biologists Ltd",

}

TY - JOUR

T1 - An analysis of changes in blood pH following exhausting activity in the starry flounder, Platichthys stellatus.

AU - Wood, C. M.

AU - McMahon, B. R.

AU - McDonald, D. G.

PY - 1977/8/1

Y1 - 1977/8/1

N2 - Exhausting activity results in a marked and immediate drop in blood pH which gradually returns to normal over the following 6h. The acidosis is caused largely by elevated Pco2 levels, which vary inversely with pH. Blood lactate concentration increases slowly, reaching a maximum at 2--4h post-exercise, and contributes significantly to the acidosis only late in the recovery period. The slow time course of lactic acid release into the blood permits temporal separation of the peak metabolic acidosis from the peak respiratory acidosis. Evidence is presented that a metabolic acid other than lactic also makes a modest contribution to the pH depression during the recovery period.

AB - Exhausting activity results in a marked and immediate drop in blood pH which gradually returns to normal over the following 6h. The acidosis is caused largely by elevated Pco2 levels, which vary inversely with pH. Blood lactate concentration increases slowly, reaching a maximum at 2--4h post-exercise, and contributes significantly to the acidosis only late in the recovery period. The slow time course of lactic acid release into the blood permits temporal separation of the peak metabolic acidosis from the peak respiratory acidosis. Evidence is presented that a metabolic acid other than lactic also makes a modest contribution to the pH depression during the recovery period.

UR - http://www.scopus.com/inward/record.url?scp=0017522125&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0017522125&partnerID=8YFLogxK

M3 - Article

C2 - 908908

AN - SCOPUS:0017522125

VL - 69

SP - 173

EP - 185

JO - Journal of Experimental Biology

JF - Journal of Experimental Biology

SN - 0022-0949

ER -