Linked Life Data

16222538

Source:http://linkedlifedata.com/resource/pubmed/id/16222538

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2005-12-1
pubmed:abstractText
The time sustained during a graded cycle exercise is approximately 10% longer in an upright compared with a supine posture. However, during constant-load cycling this effect is unknown. Therefore, we tested the postural effect on the performance of high-intensity constant-load cycling. Twenty-two active subjects (11 men, 11 women) performed two graded tests (one upright, one supine), and of those 22, 10 subjects (5 men, 5 women) performed three high-intensity constant-load tests (one upright, two supine). To test the postural effect on performance at the same absolute intensity, during the upright and one of the supine constant-load tests subjects cycled at 80% of the peak power output achieved during the upright graded test. To test the postural effect on performance at the same relative intensities, during the second supine test subjects cycled at 80% of the peak power output achieved during the supine graded test. Exercise time on the graded and absolute intensity constant-load tests for all subjects was greater (P<0.05) in the upright compared with supine posture (17.9+/-3.5 vs. 16.1+/-3.1 min for graded; 13.2+/-8.7 vs. 5.2+/-1.9 min for constant-load). This postural effect at the same absolute intensity was larger in men (19.4+/-8.5 upright vs. 6.6+/-1.6 supine, P<0.001) than women (7.1+/-2 upright vs. 3.9+/-1.4 supine, P>0.05) and it was correlated (P<0.05) with both the difference in VO2 between positions during the first minute of exercise (r=0.67) and the height of the subjects (r=0.72). In conclusion, there is a very large postural effect on performance during constant-load cycling exercise and this effect is significantly larger in men than women.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1439-6319
pubmed:author
pubmed:issnType
Print
pubmed:volume
96
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Effect of posture on high-intensity constant-load cycling performance in men and women.
pubmed:affiliation
Department of Physiology, Trinity College Dublin, Dublin 2, Ireland. megana@tcd.ie
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't