We are looking for volunteers to participate in a study assessing the impact of physical activity on gut microbiota function in older persons.


Our group is interested in characterising the bacterial communities that live in our gut (gut microbiome) and how they contribute to human health. Like many countries, Australia has a population that is rapidly ageing due to low birth rates and longer life expectancy.

The proportion of the population aged > 65 years is predicted to rise markedly over the next two decades, which will impose significant social and economic challenges on the country. Previous studies indicate that there is a link between exercise and bacterial function in our gut and so we aim to study this area in more detail in an older population.

About this study

The aim of this research study is to determine the differences between active vs inactive older people's gut microbiome and how this affects other aspects of health including brain function, cognitive function and metabolism.

On completion of the study, participants will receive a Coles/Myer gift card valued at $200 to acknowledge their valuable contribution to scientific research.

Study criteria

You will need to meet the following criteria to participate in this study:

  • Aged 65-80 years
  • BMI 20 – 30 kg/m2, inclusive
  • Not living in a care facility or retirement home that has communally prepared meals
  • Do NOT participate in sports/ intense physical activity
  • Able to attend three appointments over a two week period at the CSIRO clinic located at SAHMRI North Terrace, Adelaide
  • Not currently taking any medication that can affect normal gut function, such as antibiotics or steroids
  • Do not have a disease that can affect normal healthy gut function

Participate in this study

If you would like to participate, please register your interest by completing the online registration form.

If you have any queries about the MASOP study or would like further information please call 8305 0615 or email CRUstudies@csiro.au

This study has been approved by the CSIRO Health and Medical Research Human Research Ethics Committee.

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