Effects of aerobic training during hemodialysis on heart rate variability and left ventricular function in end-stage renal disease patients.

Autor:	Reboredo Mde M; Federal Institute of Education, Science and Technology of Southeast of Minas Gerais. mayconreboredo@yahoo.com.br, Pinheiro Bdo V, Neder JA, Ávila MP, Araujo E Ribeiro ML, de Mendonça AF, de Mello MV, Bainha AC, Dondici Filho J, de Paula RB
Jazyk:	English; Portuguese
Zdroj:	Jornal brasileiro de nefrologia : 'orgao oficial de Sociedades Brasileira e Latino-Americana de Nefrologia [J Bras Nefrol] 2010 Dec; Vol. 32 (4), pp. 367-73.
Abstrakt:	Introduction: Decreased heart rate variability (HRV) in patients with end stage renal disease (ESRD) undergoing hemodialysis is predictive of cardiac death, especially due to sudden death. Objective: To evaluate the effects of aerobic training during hemodialysis on HRV and left ventricular function in ESRD patients. Methods: Twenty two patients were randomized into two groups: exercise (n = 11; 49.6 ± 10.6 years; 4 men) and control (n = 11; 43.5 ± 12.8; 4 men). Patients assigned to the exercise group were submitted to aerobic training, performed during the first two hours of hemodialysis, three times weekly, for 12 weeks. HRV and left ventricular function were assessed by 24 hours Holter monitoring and echocardiography, respectively. Results: After 12 weeks of protocol, no significant differences were observed in time and frequency domains measures of HRV in both groups. The ejection fraction improved non-significantly in exercise group (67.5 ± 12.6% vs. 70.4 ± 12%) and decreased non-significantly in control group (73.6 ± 8.4% vs. 71.4 ± 7.6%). Conclusion: A 12-week aerobic training program performed during hemodialysis did not modify HRV and did not significantly improve the left ventricular function.
Databáze:	MEDLINE
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