Emperor penguin oxygen consumption, heart rate and plasma lactate levels during graded swimming exercise
Oxygen consumption (V˙O•), heart rate and blood chemistry were measured in four emperor penguins, Aptenodytes forsteri (Gray), during graded swimming exercise. The maximum V˙O • obtained, 52 ml O2 kg21 min21, was 7.8 times the measured resting V˙O • of 6.7 ml O2 kg21 min21 and 9.1 times the predicte...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.539.7629 2023-05-15T14:17:06+02:00 Emperor penguin oxygen consumption, heart rate and plasma lactate levels during graded swimming exercise G. L. Kooyman P. J. Ponganis The Pennsylvania State University CiteSeerX Archives 1994 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.539.7629 http://jeb.biologists.org/content/195/1/199.full.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.539.7629 http://jeb.biologists.org/content/195/1/199.full.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://jeb.biologists.org/content/195/1/199.full.pdf text 1994 ftciteseerx 2016-01-08T10:58:42Z Oxygen consumption (V˙O•), heart rate and blood chemistry were measured in four emperor penguins, Aptenodytes forsteri (Gray), during graded swimming exercise. The maximum V˙O • obtained, 52 ml O2 kg21 min21, was 7.8 times the measured resting V˙O • of 6.7 ml O2 kg21 min21 and 9.1 times the predicted resting V˙O•. As the swimming effort rose, a linear increase in surface and submerged heart rates (fH) occurred. The highest average maximum surface and submersion heart rates of any bird were 213 and 210 beats min21, respectively. No increase in plasma lactate concentrations occurred until V˙O • was greater than 25 ml O2 kg21 min21. At the highest V˙O • values measured, plasma lactate concentration reached 9.4 mmol l21. In comparison with other animals of approximately the same mass, the aerobic capacity of the emperor penguin is less than those of the emu and dog but about the same as those of the seal, sea lion and domestic goat. For aquatic animals, a low aerobic capacity seems to be consistent with the needs of parsimonious oxygen utilization while breath-holding. Text Aptenodytes forsteri Emperor penguins Unknown |
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ftciteseerx |
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English |
description |
Oxygen consumption (V˙O•), heart rate and blood chemistry were measured in four emperor penguins, Aptenodytes forsteri (Gray), during graded swimming exercise. The maximum V˙O • obtained, 52 ml O2 kg21 min21, was 7.8 times the measured resting V˙O • of 6.7 ml O2 kg21 min21 and 9.1 times the predicted resting V˙O•. As the swimming effort rose, a linear increase in surface and submerged heart rates (fH) occurred. The highest average maximum surface and submersion heart rates of any bird were 213 and 210 beats min21, respectively. No increase in plasma lactate concentrations occurred until V˙O • was greater than 25 ml O2 kg21 min21. At the highest V˙O • values measured, plasma lactate concentration reached 9.4 mmol l21. In comparison with other animals of approximately the same mass, the aerobic capacity of the emperor penguin is less than those of the emu and dog but about the same as those of the seal, sea lion and domestic goat. For aquatic animals, a low aerobic capacity seems to be consistent with the needs of parsimonious oxygen utilization while breath-holding. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
G. L. Kooyman P. J. Ponganis |
spellingShingle |
G. L. Kooyman P. J. Ponganis Emperor penguin oxygen consumption, heart rate and plasma lactate levels during graded swimming exercise |
author_facet |
G. L. Kooyman P. J. Ponganis |
author_sort |
G. L. Kooyman |
title |
Emperor penguin oxygen consumption, heart rate and plasma lactate levels during graded swimming exercise |
title_short |
Emperor penguin oxygen consumption, heart rate and plasma lactate levels during graded swimming exercise |
title_full |
Emperor penguin oxygen consumption, heart rate and plasma lactate levels during graded swimming exercise |
title_fullStr |
Emperor penguin oxygen consumption, heart rate and plasma lactate levels during graded swimming exercise |
title_full_unstemmed |
Emperor penguin oxygen consumption, heart rate and plasma lactate levels during graded swimming exercise |
title_sort |
emperor penguin oxygen consumption, heart rate and plasma lactate levels during graded swimming exercise |
publishDate |
1994 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.539.7629 http://jeb.biologists.org/content/195/1/199.full.pdf |
genre |
Aptenodytes forsteri Emperor penguins |
genre_facet |
Aptenodytes forsteri Emperor penguins |
op_source |
http://jeb.biologists.org/content/195/1/199.full.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.539.7629 http://jeb.biologists.org/content/195/1/199.full.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766289042374131712 |