Article

OBJECTIVE: To compare the effectiveness of 2 different volumes of resistance
training (RT) combined with aerobic training in residential cardiac
rehabilitation (CR). DESIGN: Randomized prospective cohort study. SETTING: Center
for inpatient CR. PARTICIPANTS: Patients (N=295) with a mean age +/- SD of
62.7+/-11.7 years participated in the study. INTERVENTIONS: Patients were
randomly divided into 2 groups (group 1 and group 2) with different volumes of
RT; 2 sets x 12 repetitions (REPS) (group 1) and 3 sets x 15 REPS (group 2) per
session, 2 times per week; each RT session consisting of 10 different resistance
exercises. In addition, patients also completed continuous moderate intensity
aerobic training composed of cycle ergometry 6 times per week for 17+/-4 minutes
(mean +/- SD) and walking 5 times per week for 45 minutes. MAIN OUTCOME MEASURES:
At entry and after 26+/-4 (mean +/- SD) days of CR, blood pressure, heart rate,
maximal oxygen consumption, and maximal power determined during cycle ergometry,
strength determined via RT, and blood biochemistries were assessed. Data were
analyzed via a 2-way (group x time) repeated measures analysis of variance.
RESULTS: Statistical analysis revealed equivalent improvements in exercise
capacity, muscular strength, hemodynamics, and blood chemistries regardless of RT
volume (comparison-wise type I error rate, alpha<.01). CONCLUSIONS: Our results
show that nearly doubling (3 sets x 15 REPS vs 2 sets x 12 REPS) the volume of RT
as part of a residential CR program does not yield further improvement in
strength and cardiovascular risk factors.
CI - Copyright (c) 2011 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS