Fibre intake, gut health and exercise capacity
It's been a while between posts, but we thought we kick things off again with a summary of Camilla's final published paper from her PhD.
The gut microbiome has been associated with cardiorespiratory fitness (CRF) possibly via metabolites produced during short-chain fatty acid (SCFA) fermentation. Soluble fibres, such as oligo-fructose enriched (FOS) inulin, increase SCFA fermentation.
Can an increase in soluble fibre intake improve CRF?
Study Intervention:
20 inactive but healthy adults were recruited to one of two groups.
Each participant complete a VO2max (measures CRF) test and provided a stool sample before and after the intervention.
Findings:
FOS-inulin did not improve CRF response to HIIT. Participants who had a greater CRF response to training had a larger abundance of B.uniformis species and gellen degradation pathways. However, FOS-inulin improved ventilatory thresholds (lactate accumulation and threshold), which was associated with a greater increase in Bifidobacterium taxa, acetate (SCFA) production and processes involved in energy production and usage.
FOS-inulin may be a beneficial ergogenic aid in endurance exercise. A B.uniformis probiotic could improve CRF......these thoughts need further exploration.
Source and further reading: https://pubmed.ncbi.nlm.nih.gov/34910161/
It's been a while between posts, but we thought we kick things off again with a summary of Camilla's final published paper from her PhD.
The gut microbiome has been associated with cardiorespiratory fitness (CRF) possibly via metabolites produced during short-chain fatty acid (SCFA) fermentation. Soluble fibres, such as oligo-fructose enriched (FOS) inulin, increase SCFA fermentation.
Can an increase in soluble fibre intake improve CRF?
Study Intervention:
20 inactive but healthy adults were recruited to one of two groups.
Each participant complete a VO2max (measures CRF) test and provided a stool sample before and after the intervention.
Findings:
FOS-inulin did not improve CRF response to HIIT. Participants who had a greater CRF response to training had a larger abundance of B.uniformis species and gellen degradation pathways. However, FOS-inulin improved ventilatory thresholds (lactate accumulation and threshold), which was associated with a greater increase in Bifidobacterium taxa, acetate (SCFA) production and processes involved in energy production and usage.
FOS-inulin may be a beneficial ergogenic aid in endurance exercise. A B.uniformis probiotic could improve CRF......these thoughts need further exploration.
Source and further reading: https://pubmed.ncbi.nlm.nih.gov/34910161/
Facebook
Twitter
Youtube