PMID: 15332346Aug 31, 2004Paper

Thermoregulation during mild exercise at different circadian times

Chronobiology International
James WaterhouseThomas Reilly

Abstract

Eight healthy subjects exercised at 90watts on a cycle ergometer on four occasions, at times close to the minimum, maximum rate of rise, maximum, and maximum rate of fall of their resting core temperature. The duration of exercise was determined by the time taken for the core (rectal) temperature to reach an equilibrium value. Forearm skin blood flow and temperature were measured regularly during the exercise, as were heart rate and ratings of perceived exertion. Sweat loss was calculated by weighing the subjects nude before and after the exercise. The rise of heart rate was not significantly different at the four times of exercise, though the rating of perceived exertion was greatest at 05:00 h. Resting core temperatures showed a significant circadian rhythm at rest (the timing of which confirmed that exercise was being performed at the required times), but the amplitude of this rhythm was decreased significantly by the exercise. The initial rate of rise of core temperature, and the total rise from the resting to the equilibrium value, were both inversely proportional to resting temperature. The time-course of the rise was accurately described by a negative-exponential model, but this model gave no evidence that the kinetics o...Continue Reading

References

Dec 1, 1978·The Journal of Physiology·J N MillsJ M Waterhouse
Mar 1, 1992·Physiology & Behavior·R Refinetti, M Menaker
Jan 1, 1990·Chronobiology International·T Reilly, G A Brooks
Dec 1, 1986·International Journal of Sports Medicine·T Reilly, G A Brooks
Mar 1, 1987·The American Journal of Physiology·J C SagotJ P Libert
Mar 1, 1984·The American Journal of Physiology·L A StephensonE R Nadel
Oct 1, 1981·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·E H HaskellH C Heller
Jan 1, 1995·European Journal of Applied Physiology and Occupational Physiology·K AokiA Iwata
Sep 1, 1994·The American Journal of Physiology·K Kräuchi, A Wirz-Justice
Jan 1, 1993·European Journal of Applied Physiology and Occupational Physiology·J SmolanderL A Laitinen
Apr 1, 1996·Physiology & Behavior·J A Shoemaker, R Refinetti
Dec 24, 1997·Acta Physiologica Scandinavica·K AokiT Katsuura
Dec 24, 1997·Physiology & Behavior·K AokiT Katsuura
Jun 9, 1998·Physiology & Behavior·D Weinert, J Waterhouse
Jun 18, 1999·Chronobiology International·J WaterhouseP Tucker
Jul 13, 2001·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·K AokiJ M Johnson
Mar 8, 2002·European Journal of Applied Physiology·Ken AokiTetsuo Katsuura

❮ Previous
Next ❯

Citations

May 4, 2005·Chronobiology International·B DrustT Reilly
Nov 14, 2008·Chronobiology International·Nizar SouissiDamien Davenne
Jul 19, 2005·Chronobiology International·Jim WaterhouseThomas Reilly
Jan 3, 2020·European Journal of Applied Physiology·Hidenori OtaniAkira Tamaki
Oct 10, 2009·Amino Acids·Lee TaylorLars R McNaughton
Dec 19, 2008·Medicine and Science in Sports and Exercise·Ruth M HobsonRonald J Maughan
Oct 5, 2010·American Journal of Physiology. Heart and Circulatory Physiology·Azmy FaisalRichard L Hughson
Mar 7, 2021·International Journal of Biometeorology·Josh FosterGeorge Havenith
Dec 5, 2020·Medicine and Science in Sports and Exercise·Nicholas Ravanelli, Ollie Jay
Jun 8, 2021·Journal of Science and Medicine in Sport·Josh FosterGeorge Havenith

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.