Analysis indicators of heart rate variability, before and after active standing with fractional Brownian movement and t-test

Abstract

Alzheimer’s is a cognitive neurodegenerative disease that mainly affects older adults. Its detection is generally evident when the disease is in a medium-advanced state of development. The studies are carried out with greater emphasis on the part of the brain, however under scientific evidence there is a direct relationship with psychophysiological measures. Identifying a variable that can evidence the presence of this type of dementia is the purpose of this study. Using fractional Brownian movement and the repeated measures t-test applied to electrocardiographic signals, recorded under the standing task, of 8 patients with the presence of the disease, the change in the maximum and minimum heart rate and the average heart rate were evidenced. the same. With the above, there are indicators of the presence of the disease, which contribute significantly to its diagnosis.