Related Experiment Video
Updated: Jan 30, 2026
08:12
Experimental Methods to Study Human Postural Control
Published on: September 11, 2019
10.1K
Diverticular disease and posture during defecation : a prospective comparative study.
1Department of Gastroenterology, Hacettepe University School of Medicine, Ankara, Turkey.
Acta Gastro-Enterologica Belgica
|January 16, 2019
Summary
Defecation posture may influence colonic diverticulosis (CD) risk. Sitting on Western-style toilets, especially for longer durations, was associated with a higher prevalence of CD.
Area of Science:
- Gastroenterology
- Digestive Health
- Epidemiology
Background:
- Colonic diverticulosis (CD) pathogenesis remains unclear.
- Understanding CD prevalence and risk factors is crucial for public health.
Purpose of the Study:
- To determine the prevalence, location, and clinical features of CD.
- To investigate the association between CD and defecation posture.
Main Methods:
- Prospective study of 757 patients, divided into diverticulosis (n:95) and non-diverticulosis (n:662) groups.
- Data collected on patient demographics, CD prevalence, location, and defecation habits.
- Multivariable logistic regression analysis used to identify independent risk factors.
Main Results:
- CD prevalence was 12.5%, most commonly in the sigmoid colon.
- Older age and female sex were associated with CD.
- Sitting during defecation (Western toilet use) was significantly more frequent and longer in the CD group.
Conclusions:
- Sitting during defecation, particularly on Western-style toilets, appears to be an independent risk factor for developing colonic diverticulosis.
- Defecation posture may play a significant role in CD development.
Related Concept Videos
01:26Feces Formation and Defecation
3.9K
After spending 3 to 10 hours in the large intestine, chyme loses a lot of water and becomes feces, the final product of digestion. Feces consist of undigested dietary fiber such as cellulose, mucus, sloughed-off epithelial cells, and microbes. The descending and sigmoid colon stores feces and uses haustral contractions to dry it out but retains enough water to give it a semi-solid texture.
The mass peristalsis then pushes the feces into the rectum, which stretches the rectal walls to activate...
The mass peristalsis then pushes the feces into the rectum, which stretches the rectal walls to activate...
3.9K
02:26Comparing 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
02:24Comparative 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
01:09Comparing 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
01:20Comparing the Survival Analysis of Two or More Groups
595
Survival analysis is a cornerstone of medical research, used to evaluate the time until an event of interest occurs, such as death, disease recurrence, or recovery. Unlike standard statistical methods, survival analysis is particularly adept at handling censored data—instances where the event has not occurred for some participants by the end of the study or remains unobserved. To address these unique challenges, specialized techniques like the Kaplan-Meier estimator, log-rank test, and...
595
02:16Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
16.0K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
16.0K