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Stress entropic load: New stress measurement method?
Filip Zlámal1,2, Peter Lenart1,2, Daniela Kuruczová2
1Research Center for Toxic Compounds in the Environment (RECETOX), Faculty of science, Masaryk University, Brno, Czech Republic.
Plos One
|October 19, 2018
Summary
Stress entropic load (SEL) is a new marker for measuring the human body's stress response. This study developed a method to measure SEL, showing it increases with mental effort and can pinpoint when stress begins.
Area of Science:
- Physiology
- Human Stress Response
- Biomarkers
Background:
- Stress is a significant factor in human health, yet direct measurement methods are lacking.
- Stress entropic load (SEL) was previously proposed as a potential stress marker, but a measurement methodology was unavailable.
- Existing stress assessment relies on indirect indicators, necessitating novel objective measures.
Purpose of the Study:
- To develop and validate a methodology for measuring stress entropic load (SEL).
- To investigate the temporal changes in SEL during mental stress.
- To assess the utility of SEL in identifying the onset of stressful conditions.
Main Methods:
- Pilot study involving healthy male participants.
- Indirect calorimetry and thermography were employed to collect physiological data.
- Calculation of the temporal development of SEL based on acquired data during rest and mental effort.
Main Results:
- SEL production significantly increased in participants undergoing prolonged mental effort.
- The calculated temporal development of SEL accurately identified the initiation of stressful tasks.
- Individual SEL profiles demonstrated distinct changes under mental stress.
Conclusions:
- The developed methodology enables the measurement of stress entropic load (SEL).
- SEL serves as a sensitive indicator of physiological response to mental stress.
- SEL measurement offers a promising tool for objective stress assessment and temporal analysis.
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