Relative roles of the sympathetic and parasympathetic systems in the 4-s exercise test
Braz. j. med. biol. res
; 23(12): 1259-62, 1990. ilus, tab
Article
Dans En
| LILACS
| ID: lil-103653
Responsable en Bibliothèque :
BR1.1
ABSTRACT
To evaluate the relative influence of the two branches of the autonomic nervous nervous system on the 4-s exercise test which measures heart rat acceleration at the onset of exercise, 6 healthy male subjects performed the 4-s test under sympathetic blockade with propranolol, parasympathetic blockade with atropine and dual blockade. The magnitude of the 4-s test results (meams ñ SD) was significantly different only between the conditions with and without atropine (1.04 ñ 0.03 vs 1.53 ñ 0.33, respectively), with no differences between the control (1.60 ñ 0.25) and the test under sympathetic blockade (1.51 ñ 0.33). These results support the conclusion that the 4-s exercise test is a specific method for the evaluation of parasympathetic activity
Recherche sur Google
Indice:
LILACS
Sujet Principal:
Propranolol
/
Atropine
/
Épreuve d'effort
Limites du sujet:
Adult
/
Humans
/
Male
langue:
En
Texte intégral:
Braz. j. med. biol. res
Thème du journal:
BIOLOGIA
/
MEDICINA
Année:
1990
Type:
Article
/
Congress and conference