title: The effect of different volumes of acute resistance exercise on elderly individuals with treated hypertension.
abstract: Acute resistance exercise can reduce the blood pressure (BP) of hypertensive subjects. The aim of this study was to evaluate the effect of different volumes of acute low-intensity resistance exercise over the magnitude and the extent of BP changes in treated hypertensive elderly individuals. Sixteen participants (7 men, 9 women), with mean age of 68 ± 5 years, performed 3 independent randomized sessions: Control (C: 40 minutes of rest), Exercise 1 (E1: 20 minutes, 1 lap in the circuit), and Exercise 2 (E2: 40 minutes, 2 laps in the circuit) with the intensity of 40% of 1 repetition maximum. Blood pressure was measured before (during 20 minutes) and after each session (every 5 minutes during 60 minutes) using both a mercury sphygmomanometer and a semiautomatic device (Omrom-HEM-431). After that, 24-hour ambulatory blood pressure monitoring was performed (Dyna-MAPA). Blood pressure decreased during the first 60 minutes (systolic: p < 0.01, diastolic: p < 0.05) after all exercise sessions. Only the highest volume session promoted a reduction of mean systolic 24-hour BP and awake BP (p < 0.05) after exercise, with higher diastolic BP during sleep (p < 0.05). Diastolic 24-hour BP and both systolic and diastolic BP during sleep were higher after E1 (p < 0.05). Concluding, acute resistive exercise sessions in a circuit with different volumes reduced BP during the first 60 minutes after exercise in elderly individuals with treated hypertension. However, only the highest volume promoted a reduction of mean 24-hour and awake systolic BP.
authors.affiliation: Department of Internal Medicine, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil.
authors.forename: Luria M L
authors.initials: LM
authors.lastname: Scher
authors.forename: Eduardo
authors.initials: E
authors.lastname: Ferriolli
authors.forename: Julio C
authors.initials: JC
authors.lastname: Moriguti
authors.forename: Ricardo
authors.initials: R
authors.lastname: Scher
authors.forename: Nereida K C
authors.initials: NK
authors.lastname: Lima
mesh_terms: D000368:Aged; D000959:Antihypertensive Agents / Q000627:therapeutic use; D018660:Blood Pressure Monitoring, Ambulatory; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000188:drug therapy / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D055070:Resistance Training; D012890:Sleep / Q000502:physiology
chemical_list: D000959:Antihypertensive Agents