Exercise shapes our gut health, study finds


In a current research revealed within the journal EBioMedicine,  a group of scientists investigated the affiliation between bodily exercise ranges and intestine microbiota utilizing accelerometer-based assessments of sedentary, reasonable, and vigorous bodily exercise ranges.

Research: Accelerometer-based physical activity is associated with the gut microbiota in 8416 individuals in SCAPIS. Picture Credit score: Zhanna Mendel / Shutterstock


A rising physique of proof reveals that optimum ranges of bodily exercise decrease the danger of kind 2 diabetes, heart problems, and psychological well being situations akin to despair. Moreover, sedentary habits involving actions that embrace in depth intervals of sitting or mendacity down have been recognized to extend the danger of cardiovascular mortality and sort 2 diabetes, and these dangers will be lowered by means of high-intensity train. Current research have additionally proven that the constructive results of train on well being is perhaps mediated by means of intestine microbiome adjustments.

Substantial analysis additionally signifies that the intestine microbiome performs a major function in growing varied illnesses and psychological well being issues. Other than the interactions with the host within the gastrointestinal tract, the intestine microbiota can be thought to supply neurotransmitters that may affect the immune system, central nervous system, and mind homeostasis by means of varied neuronal pathways and the microbiota-gut-brain axis. Bodily exercise and ensuing adjustments in circulation, enterohepatic motion of bile acids, intestinal permeability, and intestine immunity can affect the intestine microbiota.

In regards to the research

Within the current research, the researchers used information from a cardiopulmonary bioimage research from Sweden to find out if sedentary, reasonable, and vigorous ranges of bodily exercise have been related to intestine microbiome adjustments. Whereas fairly a couple of earlier research have examined this affiliation, most of them have used self-reported ranges of bodily exercise, which is topic to bias. Moreover, the authors consider that the taxonomic decision of the intestine microbes had been restricted in these research.

This research used information from a hip-worn accelerometer to acquire a extra dependable and correct measure of bodily exercise ranges. Moreover, the usage of deep shotgun metagenomics was thought to offer high-resolution taxonomic details about the intestine microbial communities.

The members within the research have been required to reply an in depth questionnaire about well being and medical historical past, food plan, and way of life habits. They underwent a collection of bodily and medical examinations akin to lungs, coronary artery, and belly computed tomography (CT). Contributors additionally offered fecal samples that have been used for the intestine microbiome evaluation. An accelerometer was worn on the hip by all of the members for one week, in any respect hours besides whereas concerned in water-based actions or sleeping.

The information from the accelerometer was transformed to counts per minute, which was then used to outline sedentary, low, reasonable, and vigorous ranges of bodily exercise in response to cut-offs validated from earlier research. Deoxyribonucleic acid (DNA) extraction was carried out for all of the fecal samples, and the extracted DNA was then used to determine the metagenomic species.

Varied indices of species variety, such because the inverse Simpson index, Shannon variety index, and species richness, have been calculated to find out the alpha variety. Moreover, the dissimilarity within the microbe composition between the samples was decided by calculating the beta variety.


The outcomes confirmed that the affiliation between sedentary habits or very low ranges of bodily exercise and the abundance of assorted intestine microbe species was converse to the affiliation between reasonable or vigorous bodily exercise ranges and the abundance of intestine microbiome species.

The abundance of Escherichia coli was discovered to be excessive in affiliation with sedentary bodily exercise ranges, whereas reasonable bodily exercise ranges have been linked to a decrease abundance of E. coli. The abundance of butyrate-producing micro organism akin to these belonging to the Roseburia genus, and Faecalibacterium prausnitzii was excessive in people with reasonable and vigorous bodily exercise ranges.

Moreover, variations have been additionally noticed within the abundance of species, akin to Prevotella copri, between people with reasonable bodily exercise ranges and people within the vigorous bodily exercise group. The abundance of P. copri was greater in affiliation with reasonable ranges of train, however vigorous train confirmed no affiliation with P. copri abundance.

The practical potential of the intestine microbiome was additionally discovered to vary in affiliation with differing bodily exercise ranges. Average ranges of bodily exercise have been discovered to be related to greater acetate and butyrate synthesis. Vigorous train was discovered to be linked to greater propionate synthesis, and sedentary exercise ranges have been related to a decrease capability for carbohydrate degradation by the intestine microbiota.


Total, the findings prompt that bodily exercise ranges have been strongly linked to the abundance of particular intestine microbes. Moreover, the variety and abundance of the intestine microbiota, and subsequently its practical potential, modified in response to completely different ranges of bodily exercise. Sedentary habits and better ranges of bodily exercise exhibited converse associations with intestine microbiome abundance and variety.

Journal reference:

  • Baldanzi, G., Sayols-Baixeras, S., Ekblom-Bak, E., Ekblom, Ö., Dekkers, Okay. F., Hammar, U., Nguyen, D., Ahmad, S., Ericson, U., Arvidsson, D., Börjesson, M., Johanson, P. J., Gustav, S. J., Bergström, G., Lind, L., Engström, G., Ärnlöv, J., Kennedy, B., Orho-Melander, M., & Fall, T. (2024). Accelerometer-based bodily exercise is related to the intestine microbiota in 8416 people in SCAPIS. EBioMedicine, 100. DOI: 10.1016/j.ebiom.2024.104989, https://www.thelancet.com/journals/ebiom/article/PIIS2352-3964(24)00024-0/fulltext
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