Linked Life Data

2444186

Source:http://linkedlifedata.com/resource/pubmed/id/2444186

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1987-11-17
pubmed:abstractText
The purpose of this study was to compare CO2 storage capacity of endurance and sprint-trained athletes during steady state exercise. Ten subjects, five sprinters and five distance runners, performed a submaximal treadmill exercise at two different work rates, 45% and 65% of VO2max. CO2 storage capacity was determined by measuring the excess CO2 washout associated with hyperventilation, normalized for body weight and expressed per unit change in mixed venous PCO2 (ml kg-1 Torr-1). Mixed venous PCO2 (PvCO2) was measured by rebreathing equilibration. It was found that CO2 storage capacities of the runners were significantly (P less than 0.05) greater than the sprinters at the two work rates. The sprinters CO2 storage capacities were 2.69 and 2.14 ml kg-1 Torr-1 at low and high work rates, respectively. The corresponding mean values for the runners were 4.56 and 3.92 ml kg-1 Torr-1, respectively. These results may be explained by the metabolic differences between the sprinters and runners. The sprinters' musculature depends more heavily on the glycolytic metabolic pathway, which is associated with an increased lactate production and hence a reduction in the combining power of the blood for CO2 during exercise. At the low work rate, the body's storage capacity for CO2 was significantly (P less than 0.05) greater than the higher work rate for both groups. Obviously, at the higher work level more blood would be presented to the lungs per unit time allowing an increase in CO2 clearance from the body stores.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0003-9799
pubmed:author
pubmed:issnType
Print
pubmed:volume
95
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
81-90
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Carbon dioxide storage capacity of endurance and sprint-trained athletes in exercise.
pubmed:affiliation
Dpt. of HPER, Mississippi State University, MS 39762.
pubmed:publicationType
Journal Article