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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
7
|
| pubmed:dateCreated |
1993-9-16
|
| pubmed:abstractText |
To investigate the effect of temperature stress on responses to static-dynamic work in patients with ischemic heart disease (IHD), 10 men with IHD shoveled gravel for 30 min in a warm (29 degrees C), neutral (24 degrees C), and cold (-8 degrees C) environment (on separate days). A pace of 15 lifts.min-1 was set, and the load per lift approximated 5.5 kg. Heart rate (HR), oxygen consumption (VO2), and systolic (SBP) and diastolic blood pressures (DBP) were evaluated at 5-min intervals. Arrhythmias and ST-segment depression were evaluated by ambulatory electrocardiographic monitoring. At 30 min, VO2, SBP, and DBP were higher (P < 0.05) in the cold environment, and HR was higher (P < 0.05) in the warm environment compared with the neutral environment. HR increased (P < 0.05) from 5 to 30 min in all three conditions. The increase in HR was greater (P < 0.05) in the warm environment. None of the subjects reported angina or demonstrated electrocardiographic ST-segment changes during shoveling in any environment. The results indicate that low-risk patients with stable IHD show modest temperature-induced alterations in hemodynamic and VO2 responses during 30 min of moderate intensity (50-60% of peak VO2) static-dynamic work without adverse electrocardiographic responses or symptomatology.
|
| pubmed:commentsCorrections | |
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Jul
|
| pubmed:issn |
0195-9131
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
25
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
790-5
|
| pubmed:dateRevised |
2008-11-21
|
| pubmed:meshHeading |
pubmed-meshheading:8350700-Aged,
pubmed-meshheading:8350700-Blood Pressure,
pubmed-meshheading:8350700-Cold Temperature,
pubmed-meshheading:8350700-Electrocardiography, Ambulatory,
pubmed-meshheading:8350700-Energy Metabolism,
pubmed-meshheading:8350700-Exercise Test,
pubmed-meshheading:8350700-Heart,
pubmed-meshheading:8350700-Heart Rate,
pubmed-meshheading:8350700-Hot Temperature,
pubmed-meshheading:8350700-Humans,
pubmed-meshheading:8350700-Male,
pubmed-meshheading:8350700-Middle Aged,
pubmed-meshheading:8350700-Myocardial Ischemia,
pubmed-meshheading:8350700-Oxygen Consumption,
pubmed-meshheading:8350700-Physical Exertion,
pubmed-meshheading:8350700-Stress, Physiological,
pubmed-meshheading:8350700-Temperature,
pubmed-meshheading:8350700-Time Factors,
pubmed-meshheading:8350700-Work
|
| pubmed:year |
1993
|
| pubmed:articleTitle |
Physiologic responses to shoveling and thermal stress in men with cardiac disease.
|
| pubmed:affiliation |
Department of Medicine, VA Medical Center, Milwaukee, WI.
|
| pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
|