Related Experiment Video
Updated: Jan 30, 2026

07:45
Acute Myocardial Infarction in Rats
Published on: February 16, 2011
54.6K
Comparing comorbidity measures and fatigue post myocardial infarction.
Carolyn E Horne1, Sharona Johnson2, Patricia B Crane1
1College of Nursing, East Carolina University, Greenville, NC 27858, United States of America.
Applied Nursing Research : ANR
|January 27, 2019
Summary
Comorbidities are linked to fatigue after myocardial infarction (MI). Older adults with five or more self-reported health conditions post-MI should be screened for fatigue.
Area of Science:
- Gerontology
- Cardiology
- Clinical Pharmacy
Background:
- Fatigue is a common symptom experienced by patients after myocardial infarction (MI).
- Understanding factors contributing to post-MI fatigue is crucial for improving patient outcomes and quality of life.
- Comorbidities are prevalent in older adults and may influence symptom experience.
Purpose of the Study:
- To investigate the relationship between various comorbidity measures and fatigue in older adults post-MI.
- To determine if self-reported, medication-validated, or weighted comorbidity measures are associated with fatigue.
- To assess the impact of the number of comorbidities on fatigue levels.
Main Methods:
- A cross-sectional study involving 98 adults aged 65 and older, 6-8 months post-MI.
- Participants self-reported 23 comorbid conditions.
- Fatigue was measured using the Revised Piper Fatigue Scale; medications were reviewed for fatigue side effects.
Main Results:
- Self-reported comorbidities explained 10% of the variance in fatigue when controlling for demographic factors.
- Having five or more self-reported comorbidities significantly explained 7% of the variance in fatigue scores (p=0.007).
- Medication-validated comorbidities and medications with fatigue side effects did not explain fatigue.
Conclusions:
- Comorbidities are significantly associated with fatigue in adults following myocardial infarction.
- Screening for fatigue is recommended for post-MI patients reporting five or more comorbidities.
- This highlights the importance of comprehensive comorbidity assessment in managing post-MI fatigue.
More Related Videos
Related Concept Videos
Fatigue
833
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...
833
Muscle Recovery and Fatigue
4.2K
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...
4.2K
Fatigue Strength of Concrete
562
Fatigue, in the context of materials science and engineering, refers to the weakening or failure of a material caused by repeatedly applied loads, even if these loads are below the strength limit of the material. Fatigue strength in concrete is a critical property that influences its durability and longevity. Concrete can fail in two ways due to fatigue. Static fatigue or creep rupture occurs under a constant load or one that increases slowly. The other failure mode is due to cyclical or...
562
Comparing Copy Number Variations and SNPs
18.7K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
18.7K
Comparative Excretory Systems
26.6K
Animals have evolved different strategies for excretion, the removal of waste from the body. Most waste must be dissolved in water to be excreted, so an animal’s excretory strategy directly affects its water balance.
26.6K
Comparing Experimental Results: Student's t-Test
6.0K
The t-test is a statistical method used to compare the sample mean with a population mean or compare two means from two data sets. The test statistic is calculated from the standard deviation, mean, and number of measurements in the data set at a selected confidence interval and then compared to a table of critical values at this confidence level. If the test statistic is smaller than the critical value, the null hypothesis is accepted. In this case, we state that the difference between the...
6.0K

