Linked Life Data

11990114

Source:http://linkedlifedata.com/resource/pubmed/id/11990114

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2002-5-6
pubmed:abstractText
To evaluate whether occasional strong physical activity at moderate altitude for several consecutive days is acceptable in untrained middle-aged people, 10 men (age range, 46-59 years) underwent physical examinations before (control day, D0), during (D1-D8), and after 1 wk of leisure alpine skiing. With respect to D0, the resting concentration of plasma noradrenaline (NOR) increased transiently (p < 0.01) on D2 and then increased to a maximal value from D6-D8 (p < 0.01). There was no significant change in the concentration of adrenaline. Although maximal voluntary contraction of knee extensors diminished on D3 (P < 0.05), that of the digit flexors did not change. Heart rate (HR) and blood pressure at rest in the evening were always higher than control values except on D4 (forced rest). After the stay, there was a reduction in sympathetic activity. This was reflected by a return of NOR to its control value, a decrease in resting HR (64.2 [11.4] beats per minute [bpm]: control: 71.1 [10.1] bpm, P < 0.02), a tendency for triglyceride and insulin resistance to decrease, and a significant increase in alipoprotein A1/alipoprotein A2 (P < 0.01). Our results show that despite signs of fatigue on D3, the effects of physical activity that is relatively intense (HR > 70% maximal HR) together with mild hypoxia are well tolerated by untrained middle-aged men and that the controlled practice of downhill skiing may be accepted into a program to lower cardiovascular risk factors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1080-6032
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
199-207
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Physiological effects of downhill skiing at moderate altitude in untrained middle-aged men.
pubmed:affiliation
Ecole Interarmées des Sports, Fontainebleau, France.
pubmed:publicationType
Journal Article