Journal ArticleDOI
Haemodynamic and hormonal responses to heat exposure in a Finnish sauna bath
Katriina Kukkonen-Harjula,Pekka Oja,Kai Laustiola,Ilkka Vuori,Jukka Jolkkonen,Simo Siitonen,Heikki Vapaatalo +6 more
TLDR
Patterns related to heat exposure were observed for heart rate, plasma noradrenaline, ACTH and prolactin in the three study periods.Abstract:
Eight healthy young men were studied during three periods of heat exposure in a Finnish sauna bath: at 80 degrees C dry bulb (80 D) and 100 degrees C dry bulb (100 D) temperatures until subjective discomfort, and in 80 degrees C dry heat, becoming humid (80 DH) until subjective exhaustion. Oral temperature increased 1.1 degrees C at 80 D, 1.9 degrees C at 100 D and 3.2 degrees C at 80 DH. Heart rate increased about 60% at 80 D, 90% at 100 D and 130% at 80 DH. Plasma noradrenaline increased about 100% at 80 D, 160% at 100 D and 310% at 80 DH. Adrenaline did not change. Plasma prolactin increased 2-fold at 80 D, 7-fold at 100 D and 10-fold at 80 DH. Blood concentrations of the beta-endorphin immunoreactivity at 100 D, adrenocorticotropic hormone (ACTH) at 100 D and 80 DH, growth hormone at 100 D and testosterone at 80 DH also increased, but cortisol at 80 D and 100 D decreased. The plasma prostaglandin E2 and serum thromboxane B2 levels did not change. Patterns related to heat exposure were observed for heart rate, plasma noradrenaline, ACTH and prolactin in the three study periods.read more
Citations
More filters
Journal ArticleDOI
Evolution of concepts of stress
TL;DR: This essay describes the evolution of stress as a medical scientific idea as a condition characterized by a perceived discrepancy between information about a monitored variable and criteria for eliciting patterned effector responses.
Journal ArticleDOI
Benefits and risks of sauna bathing.
TL;DR: Sauna bathing is safe, however, for most people with coronary heart disease with stable angina pectoris or old myocardial infarction, and alcohol consumption during sauna bathing increases the risk of hypotension, arrhythmia, and sudden death, and should be avoided.
Journal ArticleDOI
Association Between Sauna Bathing and Fatal Cardiovascular and All-Cause Mortality Events
TL;DR: Investigation of the association of frequency and duration of sauna bathing with the risk of sudden cardiac death, fatal coronary heart disease (CHD), fatal cardiovascular disease (CVD), and all-cause mortality in middle-aged men from Eastern Finland found increased frequency is associated with a reduced risk of SCD, CHD, CVD,
Journal ArticleDOI
Intra-oral temperature variation over 24 hours.
TL;DR: The data presented demonstrate that the temperature at sites on an archwire in situ varies considerably over a 24-hour period and that racial differences may exist and this information should be considered during the manufacture and use of temperature-sensitive orthodontic materials, in particular nickel-titanium archwires and springs.
Journal ArticleDOI
Health effects and risks of sauna bathing
TL;DR: Further research is needed with sound experimental design, and with subjects not accustomed to sauna, before sauna bathing can routinely be used as a non-pharmacological treatment regimen in certain medical disorders to relieve symptoms and improve wellness.
References
More filters
Book
Methods of hormone radioimmunoassay.
TL;DR: This ebooks is under topic such as a radioimmunoassay method for human pituitary luteinizing methods inRadioimmunOassay, toxicology, and springer, and a rapid radioIMmunoASSay method of (39161) ultrafiltration method for direct radioim Muncoassay measurement new solid phases for estimation of hormones by agreement between electrochemiluminescence and raciloimmunosynthesis.
Journal ArticleDOI
Validity and reliability of liquid chromatography with electrochemical detection for measuring plasma levels of norepinephrine and epinephrine in man.
TL;DR: Liquid chromatography with electrochemical detection (LCEC) provides a rapid, sensitive, and specific technique for measuring human plasma norepinephrine and epinephrine levels against that of the catechol-O-methyl-transferase radioenzymatic (COMT-RE) assay.
Journal ArticleDOI
Hormonal responses to graded surgical stress.
Bart Chernow,Bart Chernow,H. Richard Alexander,Robert C. Smallridge,W. Raleigh Thompson,W. Raleigh Thompson,D. Cook,D. Beardsley,Mitchell P. Fink,Mitchell P. Fink,Mitchell P. Fink,C. Raymond Lake,J. Raymond Fletcher,J. Raymond Fletcher,J. Raymond Fletcher +14 more
TL;DR: Hormonal responses do reflect the degree of surgical stress; the hormonal changes are transient, lasting no longer than 24 hours in patients after uncomplicated surgery; hormonal responses to minimal surgical stress are negligible.
Journal ArticleDOI
Radioimmunoassay of ACTH in plasma
TL;DR: Marked elevations in plasma ACTH were observed in patients with adrenal insufficiency off steroid therapy, in Cushing's disease after adrenalectomy even in the presence of persistent hypercortisolemia, and in some untreated patients with Cushed's disease.