All articles tagged with #marathon runners
A small study suggests that long-distance runners may have a higher prevalence of colon polyps and advanced adenomas, potentially linked to exercise-induced gut ischemia, diet, or other factors, warranting further research and possibly tailored screening strategies.
Several well-known celebrities and athletes are set to participate in the 2024 Boston Marathon, including Zdeno Chara, Nicolas Kiefer, Henry Richard, Daniel Humm, Matt Wilpers, Shane Sager, Meb Keflezighi, Des Linden, Evans Chebet, Charlie Davis, Amby Burfoot, Troy Hoyt, Tevin Wooten, Emily Maher, Dave Fortier, and more. They will be running for various causes and foundations, with some aiming to achieve personal milestones such as completing all six major marathons.
A recent study suggests that marathon runners' bodies may utilize brain tissue, specifically the myelin layer, as an energy source during races. The study, which is yet to be peer-reviewed, found significant declines in myelin levels in the brains of runners after a marathon, indicating that myelin may serve as a reserve energy source. Interestingly, the researchers also observed that the myelin appeared to replenish itself in the weeks following the race, suggesting that it is more adaptable than previously believed. While the study has limitations, such as a small sample size, it raises intriguing questions about the dynamic nature of the myelin sheath and its potential role as an energy source.
A new study suggests that marathon runners rely on myelin, the fatty tissue around nerve fibers, as a source of energy during races. Researchers found that brain scans of runners immediately after a marathon showed a significant decrease in myelin levels, which then recovered within two weeks. This discovery could have therapeutic implications for developing treatments for conditions involving myelin loss. The researchers emphasize that running is not bad for the brain and suggest that using and replenishing energy reserves through running may actually benefit brain function.
Long-distance runners and walkers, including marathon runners, often experience episodes of "runners diarrhea," with up to 90% of participants in endurance races reporting gastrointestinal symptoms. Factors such as reduced blood flow to the abdominal gastrointestinal organs during exercise and difficulty controlling the anal sphincters contribute to this phenomenon. Stress before a race and the constant jostling of the body while running may also play a role.