The Journal of Physical Fitness and Sports Medicine
Online ISSN : 2186-8123
Print ISSN : 2186-8131
ISSN-L : 2186-8131
Short Communication
Altered gut microbiota by voluntary exercise induces high physical activity in high-fat diet mice
Eri OyanagiMasataka UchidaMichael J. KremenikHiromi Yano
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2018 Volume 7 Issue 1 Pages 81-85


In the present study, we determined whether or not exercise-induced high physical activity could be transmitted via altered gut microbiota. We collected cecal material from male C57BL/6N mice for 12 weeks under two conditions: voluntary wheel running (EX) and sedentary condition (SED). After depleting endogenous gut microbiota, cecal microbiota transplantation (CMT) was initiated in the recipient mice by placing cecal contents of either EX or SED mice into the oral cavity directly with the feeding of a high-fat diet (HFD). After a breeding period of 8 weeks, the physical activity test of the HFD (EX-CMT and SED-CMT) mice was examined. Although EX donor mice were attenuated with increasing body mass and body fat, and induced hypertrophy of the heart was compared with SED donor mice, those parameters did not show any difference between EX-CMT and SED-CMT mice. Nevertheless, high physical activity was observed in EX-CMT mice compared to SED-CMT mice (p < 0.01). These results suggest that exercise-induced high physical activity might be transmitted to un-exercised HFD mice via its altered gut microbiota.

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© 2018 The Japanese Society of Physical Fitness and Sports Medicine
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