Article

The effect of muscle strength training on muscle strength,
maximal oxygen uptake (VO2max), hemodynamic and anthropometric parameters as well
as quality of life after coronary artery bypass grafting (CABG). METHODS: After
CABG surgery, 32 patients were randomized into two groups. The first group was to
perform aerobic-type training with a cycle ergometer (AT=16). The second group
was to perform low-intensity muscle strength training of the quadriceps and
hamstrings using an isokinetic dynamometer (i.e. 20 to 30% of peak torque)
(ST=16). Before and after the strength training program we conducted a stress
test, evaluation of isokinetic force production, 6-minute walking test, body
impedance analysis (BIA) and SF-36 quality of life test. RESULTS: Compared to the
AT group, the ST group showed better results with improved quadriceps strength
(48.2% vs. 8.2%), VO2max (P<.001) and diastolic blood pressure at rest (P=0.01).
Quality of life improved in both groups. CONCLUSION: The dynamic-resistance
muscle strength training protocol using isokinetic dynamometer can safely (i.e.
without clinical symptoms or changes to the ECG and arterial blood pressure)
improve muscle strength and VO2max without any major risks in patients post-CABG.
These findings should encourage additional studies to validate the relevance of
these strength training modalities in rehabilitation centers.
CI - Copyright (c) 2012 Elsevier Masson SAS. All rights reserved.

Langue : ANGLAIS ; FRANCAIS