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Fatigue01:21

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...
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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...
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Acupoint Application as a Traditional Chinese Medicine Treatment for Fatigue Associated with Chronic Obstructive Pulmonary Disease
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Published on: September 5, 2025

[Fatigue in chronic disease].

Niels Henrik Hjøllund1, Johan Hviid Andersen, Per Bech

  • 1Region Midtjylland, Center for Folkesundhed, Aarhus Universitet, Institut for Folkesundhed, Afdeling for Klinisk Socialmedicin, Regionshospitalet Herning, Arbejdsmedicinsk Klinik. nhh@folkesundhed.au.dk

Ugeskrift for Laeger
|May 21, 2008
PubMed
Summary
This summary is machine-generated.

Chronic disease fatigue research is fragmented, with most studies focusing on single conditions like cancer. More comparative research is needed to understand fatigue across different diseases.

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Area of Science:

  • Medical research
  • Clinical studies
  • Disease analysis

Background:

  • Fatigue is a common symptom in patients with chronic diseases.
  • Existing research on fatigue in chronic illness is often disease-specific.
  • A comprehensive understanding of fatigue across diverse medical conditions is lacking.

Purpose of the Study:

  • To analyze the landscape of research on disease-related fatigue.
  • To identify patterns in study designs and disease focus.
  • To highlight gaps in the understanding of fatigue across different chronic diseases.

Main Methods:

  • Systematic literature search and data extraction from 2285 papers.
  • Categorization of studies by disease type (malignant, infectious, rheumatologic, neurological, cardiovascular).
  • Analysis of study designs, with a focus on cross-sectional studies and inter-specialty comparisons.

Main Results:

  • Malignant diseases were the most studied (36%), followed by infectious, rheumatologic, neurological, and cardiovascular diseases.
  • The vast majority of studies (n=2083) were cross-sectional.
  • Only 2% of studies compared patients across different medical specialties.
  • Research on fatigue is largely isolated within single disease categories.

Conclusions:

  • Current research on disease-related fatigue is highly fragmented and disease-specific.
  • There is a significant lack of comparative studies investigating fatigue across different chronic diseases.
  • Further research is needed to understand the prognosis and variations in fatigue occurrence and characteristics among various diseases.