Efeitos da suplementação de creatina na capacidade funcional e na composição corporal de pacientes com insuficiência cardíaca
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Data
2011-07-04
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Universidade Federal de Goiás
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Introduction: Heart failure is a progressive clinical syndrome in patients that generally, present alterations in their nutritional condition and loss in the functional capacity. objectives: Evaluating the effects of creatine supplementation on functional capacity and body composition of patients with heart failure. Methodology: Prospective, randomized, double-blind study performed at the Hospital das Clínicas of Federal University of Goiás, with 33 patients over 18 years old with heart failure. The selected patients were randomized in experimental group (CRE, n=17), supplemented with creatine monohydrate and placebo group (PLA, n=16), which received maltodextrin. For both groups, the instruction about taking the supplement or the placebo were 5 g dialy during the period of six months. The patients were submitted to evaluation of functional capacity by ergospirometry and the walking test per six minutes (6-MWT), anthropometry and the food consumption, before starting suplementation and at end of sixth month.The statistical model ANCOVA was used to analyze groups and treatment forms. Results: From the variables evaluated in the ergospirometry, the volume of the peak oxygen uptake (peak VO2 ), anaerobic threshold (AT), and the oxygen pulse (O2P) did not show significant differences between the groups (p>0,05). There was no significant difference in the distance travelled concerned to 6-MWT. The volunteers in the CRE groups presented average values of muscle circumference of the arm statistically superior from the PLA group (p=0,0413). The total of the body mass, lean body mass and the fat percentage did not present significant differences between groups. As for the total caloric value and macronutrients of the diet only medium amounts of lipids in the CRE group presented statistically lower (p=0.0120) than the PLA group. Conclusion: The creatine in patients with heart failure did not cause significant improvement in the functional capacity, in spite of the skeletal muscle enhancement in the CRE group, according to (MCA).
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CARVALHO, Ana Paula Perillo Ferreira. Effects of creatine supplementation in the functional capacity and in the body composition of patients with heart failure. 2011. 139 f. Tese (Doutorado em Ciencias da Saude) - Universidade Federal de Goiás, Goiânia, 2011.