PMID: 9190126Mar 1, 1997Paper

Salivary cortisol response to a 30 mn submaximal test adjusted to a constant heart rate

The Journal of Sports Medicine and Physical Fitness
G LacA Robert

Abstract

The aim of this study was to analyse the salivary cortisol variations during a 30 min sub-maximal exercise, the load being fitted so that the heart rate remains constant at 170 +/- 4 bpm. Tests were conducted at 10 a.m. precisely (in order to avoid circadian variations), and cortisol values were recorded every 5 mn by means of a sampling collector over 40 mn), (30 mn bout + 10 mn post-exercise) and then at 30 mn, 1 h 30 mn and 5 h following the end of the exercise. Test values were compared to reference values, (average cortisol resting levels obtained at comparable hours on a previous day). Nine sport-students, (5 boys, 4 girls) entered the study. The cortisol level presented a significant increase from the first step of the exercise and then, as opposed to an exercise where a constant load is applied, it did not keep increasing but remained steady until the end of the test. After stopping, a new significant increase surprisingly appeared; the values then dropped to reference levels, but they were still higher 1h 30 mn after exercise had stopped. It appears that when the perceived stress of the body reaches an equilibrium, as controlled by monitoring the heart rate, cortisol levels quickly rise to a steady state, about two fol...Continue Reading

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.