Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1992-11-17
pubmed:abstractText
Ten prepubertal girls (9.1 yr) and 10 women (24.4 yr) were studied during 30-min runs at the same relative (70% VO2max) (RI) and absolute (7.2 km.h-1) (AI) intensities. Oxygen consumption and respiratory exchange ratio (RER) were monitored continuously during the exercise test. Venous blood samples were obtained before and immediately after exercise and were analyzed for glucose, lactate, FFA, and glycerol. During exercise at the same RI, RER was significantly (P less than 0.05) lower in the girls compared with the women. In addition, RER decreased significantly during exercise in the girls while the change did not reach significance in the women. Lactate concentration increased significantly during the exercise tests, this increase being greater in the women than in the girls during exercise at the same RI, but greater in the girls than in the women during exercise at the same AI. FFA and glycerol concentrations were significantly higher after the exercise tests in both groups. Glucose concentration did not change significantly during the tests in either group. Prepubertal girls rely more on fat utilization and less on carbohydrate metabolism than women during exercise of moderately heavy intensity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0195-9131
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
975-83
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Substrate utilization during treadmill running in prepubertal girls and women.
pubmed:affiliation
Department of Nutrition, Food, and Movement Sciences, Florida State University, Tallahassee 32306.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't