Article

This study determined the effect of a structured isotonic strength
training (ST) program on left ventricular (LV) function (ejection fraction,
stroke volume, and end-diastolic and end-systolic volumes) and physical fitness
(6-minute walk test, upper body strength, lower body strength, and body
composition) in patients with New York Heart Association class II and III heart
failure. METHODS: Sixteen patients were randomized into 2 groups, ST and usual
care. The ST group (10 patients) performed 24 ST exercise sessions (3 per week, 8
weeks), while the usual care (6 patients) group followed routine medical care.
The structured isotonic ST program involved 12 different exercises on circuit
weight machines. LV function (3D echocardiography) and physical fitness were
assessed at baseline and 8 weeks. RESULTS: Modest improvements (P < .05) in
resting ejection fraction (0.32-0.37) and stroke volume (46 to 53 mL/beat), as
well as in muscular strength and 6-minute walk distance, were found after training. CONCLUSIONS: A short-term structured isotonic ST program appears to
improve selected measures of resting LV function and fitness in patients with
mild congestive heart failure. Additional studies utilizing larger numbers of
subjects, including women, are needed.

Langue : ANGLAIS

Tiré à part : OUI