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The effect of tiring the forearm muscles in different ways on venous blood pH, P CO 2 and standard bicarbonate
Author(s) -
Barcroft H.,
Youlten L. J. F.
Publication year - 1966
Publication title -
the journal of physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.802
H-Index - 240
eISSN - 1469-7793
pISSN - 0022-3751
DOI - 10.1113/jphysiol.1966.sp008093
Subject(s) - bicarbonate , venous blood , forearm , chemistry , oxygenation , anesthesia , medicine , anatomy
1. The changes in venous blood pH, p CO 2 and standard bicarbonate caused by tiring the forearm by ( a ) rhythmic work with free circulation, ( b ) rhythmic work with ischaemic circulation, were determined using the Astrup apparatus. 2. For rhythmic work, opening and shutting the hand as quickly as possible for 2 min, the averaged results on six subjects were: pH fell 0·19 units; p CO 2 (after full oxygenation of venous blood) rose 52 mm Hg; standard bicarbonate fell 2·9 m‐equiv/l. 3. For rhythmic work during ischaemia and accompanied by pain, the averaged results on six subjects were: pH fell 0·19 units; p CO 2 (after full oxygenation of venous blood) rose 26 mm Hg; standard bicarbonate fell 6·3 m‐equiv/l. 4. These results are compared with those obtained in an earlier investigation on the effect of strong hand grips for 1 min.