Association between physical activity and inflammatory bowel disease risk: A meta-analysis

Area of Science:

• Gastroenterology
• Epidemiology
• Public Health

Background:

• Conflicting evidence exists regarding the relationship between physical activity and inflammatory bowel disease (IBD).
• Previous studies have not definitively established whether physical activity influences IBD risk.

Purpose of the Study:

• To conduct a meta-analysis to clarify the association between physical activity and inflammatory bowel disease.
• To synthesize findings from existing observational studies to determine the impact of physical activity on IBD development.

Main Methods:

• A systematic search of PubMed and Web of Science databases was performed for studies published up to October 2015.
• Data extraction and meta-analysis using random or fixed-effects models were conducted based on study heterogeneity.
• Seven relevant studies were included in the final analysis.

Main Results:

• High physical activity was associated with a reduced risk of Crohn's disease (Relative Risk [RR], 0.63; 95% Confidence Interval [CI], 0.50-0.79) compared to low physical activity.
• This protective effect was significant in European populations (RR, 0.62; 95% CI, 0.43-0.91) and in population-based and case-control studies (RR, 0.56; 95% CI, 0.41-0.76).
• No significant association was found between physical activity and the risk of ulcerative colitis (RR, 0.82; 95% CI, 0.68-1.00).

Conclusions:

• Physical activity demonstrates a protective effect against the development of Crohn's disease.
• The findings suggest that maintaining a high level of physical activity may be beneficial for preventing Crohn's disease.
• Further research may be warranted to explore the mechanisms behind this association.