Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Fatigue

Fatigue

Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...

Muscle Recovery and Fatigue

Muscle Recovery and Fatigue

Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective response...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Healthcare Workers' Views on Approaches to Discussing Alternative Treatment Options in Multidisciplinary Cancer Care.

Cureus·2026

Same author

Usability Testing a Context-Sensitive Strategy for Screening, Brief Intervention, and Referral to Treatment.

Studies in health technology and informatics·2025

Same author

Definitional devils and detail: On identifying motivation as an animating dynamic.

The Behavioral and brain sciences·2025

Same author

Stress and Cardiovascular Disease: The Role of Affective Traits and Mental Disorders.

Annual review of clinical psychology·2025

Same author

Multiple sclerosis and self-alienation: a study based on self and others representations.

BMC psychology·2024

Same author

The role of metacognition, type of feedback, and kind of incentives for motivation to learn.

Current issues in personality psychology·2023

Search research articles

Related Experiment Video

Updated: Jul 6, 2026

Estimate the Cognitive Load Using Electrocardiographic Measure: A Human-AI Collaborative Task

Estimate the Cognitive Load Using Electrocardiographic Measure: A Human-AI Collaborative Task

Published on: December 5, 2025

Reported fatigue, difficulty, and cardiovascular response to a memory challenge.

R Nicholas Nolte¹, Rex A Wright, Crystal Turner

¹University of Alabama at Birmingham, United States.

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology

|April 2, 2008

Summary

This study on fatigue and cardiovascular responses found that blood pressure changes differed based on the number of trigrams memorized. Fatigue impacted systolic blood pressure differently in the two-trigram versus six-trigram conditions.

More Related Videos

Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory

Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory

Published on: June 18, 2014

Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition

Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition

Published on: February 1, 2012

Related Experiment Videos

Last Updated: Jul 6, 2026

Estimate the Cognitive Load Using Electrocardiographic Measure: A Human-AI Collaborative Task

Estimate the Cognitive Load Using Electrocardiographic Measure: A Human-AI Collaborative Task

Published on: December 5, 2025

Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory

Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory

Published on: June 18, 2014

Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition

Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition

Published on: February 1, 2012

Area of Science:

Psychology
Cardiovascular Physiology
Human Performance

Background:

Fatigue is a common experience affecting cognitive performance and physiological responses.
Previous research suggests a link between fatigue, effort, and cardiovascular activity.
Understanding these relationships is crucial for optimizing task performance and well-being.

Purpose of the Study:

To investigate the influence of task complexity on cardiovascular responses during a memorization task.
To examine how self-reported fatigue interacts with cardiovascular measures under different cognitive loads.
To extend previous findings on fatigue and effort-related cardiovascular adjustments.

Main Methods:

Female undergraduates memorized two or six nonsense trigrams within a 2-minute period.
Cardiovascular measures, including systolic blood pressure, diastolic blood pressure, and mean arterial blood pressure, were recorded.
Participants self-reported their level of fatigue during the task.

Main Results:

Systolic blood pressure responses showed a rise-and-fall pattern with fatigue in the two-trigram condition, contrasting with a high-to-low decline in the six-trigram condition.
Blood pressure responses were modulated by the interaction between task complexity (number of trigrams) and fatigue level.
Diastolic and mean arterial blood pressure patterns mirrored the systolic blood pressure findings.

Conclusions:

Cardiovascular responses to cognitive tasks are significantly influenced by the interplay of task difficulty and subjective fatigue.
The findings support a conceptual model linking fatigue, effort, and cardiovascular regulation.
This research provides further evidence for the complex relationship between psychological states and physiological adjustments.