Das Training formuliert nicht nur Ihren Körper – er verdrahtet Ihr Darmmikrobiom erneut. Während des intensiven Trainings hatten die Ruderer häufigere Darmbewegungen, wobei 92% innerhalb eines 24-Stunden-Fensters gingen. Wenn Sie sich härter beim Training vorantreiben, kann es sein, Ihre Darmmikroben auf eine Weise zu „füttern“, die eine bessere Gesundheit fördert.

I’ve linked to the news release in the post above. In this comment, for those interested, here’s the link to the peer reviewed journal article:

Training load influences gut microbiome of highly trained rowing athletes

https://www.tandfonline.com/doi/full/10.1080/15502783.2025.2507952

From the linked article:

**Working out doesn’t just reshape your body – it rewires your gut**

We know by now that exercise is good for the body and mind at any age, but new research has found that your workouts may be helping in a less obvious place too: inside your gut. It’s yet another sign that the **gut microbiome** is central to overall health.

Researchers at Edith Cowan University (ECU) have found that not just exercise but the intensity of the workout changes the community of microbes living in the digestive tract, providing the kind of environment ideal for influencing overall health.

What the scientists found was that during the intense period, the rowers across the board had higher levels of short-chain fatty acids (SCFAs) – particularly butyrate and propionate, which are linked to gut lining health, reduced inflammation and energy metabolism. Butyrate rose from 64 mmol/L during rest to 105 mmol/L in high training, while propionate increased from 91 mmol/L to 121 mmol/L.

**During the intense training period, the rowers had more frequent bowel movements, with 92% of the cohort going to the bathroom within a 24-hour window throughout this time, showing that their digestion had sped up as their workout efforts had risen**.

And levels of Bacteroidota (a group associated with breaking down complex carbohydrates) had increased, while the ratio of Firmicutes to Bacteroidota dropped significantly in the high-training phase. This ratio is important – a higher Firmicutes/Bacteroidota ratio has been associated with weight gain and less efficient metabolism, while a lower ratio – aka more Bacteroidota – tends to correlate with leanness and better metabolic outcomes. (It’s worth noting that this is still an emerging area of study.)

One explanation for the change, the researchers suggest, has to do with lactate produced in muscles and transported to the gut to be metabolized. Intense exercise raises lactate levels, and certain microbes can feed on lactate, converting it into SCFAs like butyrate and propionate. In the process, they also help buffer gut acidity, keeping pH at a healthy level for other microbes to thrive. **So, in a sense, pushing yourself harder in training may be “feeding” your gut microbes in ways that promote better health.**

Doesn’t rowing involve pulling the oar handle into your body at about gut level? Could that be causing the increased bowel movements rather than the exercise per se?

People with high food intake also have higher amounts of bowel movements shocker.

More news at 10.

Yesterday we had The NY Times article about the link between running and colon cancer.

Dopaminergic activity does what it do, that this is news to anyone just tells you how little experts actually know