N=81, including the cohort of cognitively normal subjects, and those with dementia.

Mounting evidence showed the self-reported levels of physical activity are positively associated with white matter (WM) integrity and cognitive performance in normal adults and patients with mild cognitive impairment (MCI)...

However, the objective measure of cardiorespiratory fitness (CRF) was not used in these studies.

Why even bother? At what point does the methodology of a study begin to so closely resemble some guy on a rocking chair saying “ahh reckon,” that we don’t call it science?