Table 1.

Inclusion and exclusion criteria.

Older Adults	Senior Orienteering Athletes
Inclusion criteria
Informed consent signed by the study participant Age ≥ 65 years Mentally and physically fit to complete questionnaires during the study period	Informed consent signed by the study participant Age ≥ 65 years Mentally and physically fit to complete questionnaires during the study period Actively performing and competing in orienteering
Exclusion criteria
Any known gastrointestinal disease, malignancies, and ischemia Inflammatory bowel disease Participation in another clinical trial in the past three months	Any known gastrointestinal disease, malignancies, and ischemia Inflammatory bowel disease Participation in another clinical trial in the past three months