PMID: 8960402Sep 1, 1996Paper

Comparative effects of acute volume expansion and short-term training on thermal and cardiovascular responses to prolonged exercise

Canadian Journal of Physiology and Pharmacology
R HelyarJ Sutton

Abstract

To investigate the hypothesis that increases in plasma volume (PV) are crucial to the cardiovascular and thermal adaptations resulting from training, eight moderately active males (Vo2max = 4.10 +/- 0.32 L/min; mean +/- SE) performed prolonged cycle exercise at 60% Vo2max during a control test (CON) and following infusion (10 mL/kg) of a 6% dextran solution (DEX). These responses were also compared with short-term training (TR) involving 3 days of cycling for 90-120 min at moderate intensity (60% Vo2max). During DEX, exercise cardiac output (Q) and stroke volume (SV) were persistently higher (p < 0.05) than CON, while heart rate (HR) was unchanged. In comparison, TR resulted in a lower (p < 0.05) HR at constant Q. In contrast with TR, in which the exercise response was unchanged from CON, the DEX condition produced a lower total peripheral resistance. Rectal temperature (Tre) was lowered (p < 0.05) both by DEX and TR, but the conditions differed in the time at which the reduction occurred. For DEX, the lower Tre was manifested early and persisted throughout exercise, whereas for TR the Tre was only lower later in exercise. Forearm blood flow, mean skin temperature, and sweat rate were not affected by DEX or TR. It is concluded ...Continue Reading

References

Jan 1, 1991·European Journal of Applied Physiology and Occupational Physiology·H J GreenS Jones
Aug 1, 1990·Medicine and Science in Sports and Exercise·H J GreenD C Painter
Jan 1, 1983·European Journal of Applied Physiology and Occupational Physiology·M N SawkaD H Horstman
Nov 1, 1993·Medicine and Science in Sports and Exercise·D H ZappeW L Kenney
Jul 1, 1953·The Journal of Physiology·R J WHITNEY

❮ Previous
Next ❯

Citations

Jan 22, 2014·European Journal of Sport Science·Ricardo J S CostaNeil P Walsh
Mar 18, 2000·Canadian Journal of Physiology and Pharmacology·B D RoyM A Tarnopolsky
May 1, 2013·Pediatric Obesity·V LemayM-E Mathieu
Dec 26, 2001·The Journal of Pharmacology and Experimental Therapeutics·C W SchindlerS R Goldberg
Feb 1, 2008·The Proceedings of the Nutrition Society·Catia MartinsLinda M Morgan

❮ 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.

Related Papers

Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme
Glen P KennyFrancis D Reardon
© 2021 Meta ULC. All rights reserved