I'm not sure it is - people walk at different paces for all sorts of different reasons. If you know of any research on this topic - please share - thanks.
Mild cognitive decline in ...by
Dr. Rubens D.
Mild cognitive decline in nearly half lacunar stroke patients
Mild cognitiveimpairment... of Neurology. 28 aug 2012—Mild cognitiveimpairment (MCI) is present in nearly half of patients with lacunar...