title: Chagas disease alters the relationship between heart rate variability and daily physical activity.
abstract: Regular exercise training is considered to be capable of beneficially modifying the autonomic balance in healthy subjects. We studied the association between vagal HRV indexes and the level of physical activity in Chagas disease patients and control subjects. Although in controls habitual physical activity was closely associated with vagal HRV indexes, no relationship was found between IPAQ scores and HRV indexes in a Chagas disease group, suggesting that Chagas dysautonomia disrupted this potentially beneficial association.
authors.forename: Lidiane
authors.initials: L
authors.lastname: Sousa
authors.forename: Manoel Otávio da Costa
authors.initials: MO
authors.lastname: Rocha
authors.forename: Raquel Rodrigues
authors.initials: RR
authors.lastname: Britto
authors.forename: Federico
authors.initials: F
authors.lastname: Lombardi
authors.forename: Antonio L
authors.initials: AL
authors.lastname: Ribeiro
mesh_terms: D000328:Adult; D001342:Autonomic Nervous System Diseases / Q000503:physiopathology*; D002598:Chagas Cardiomyopathy / Q000503:physiopathology*; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology*