دورية أكاديمية
Effects of Exercise Training on Heart Rate Variability in Chagas Heart Disease
| العنوان: | Effects of Exercise Training on Heart Rate Variability in Chagas Heart Disease |
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| المؤلفون: | Bruno Ramos Nascimento, Márcia Maria Oliveira Lima, Maria do Carmo Pereira Nunes, Maria Clara Noman de Alencar, Henrique Silveira Costa, Marcelo Martins Pinto Filho, Vitor Emanuel Serafim Cota, Manoel Otávio da Costa Rocha, Antonio Luiz Pinho Ribeiro |
| المصدر: | Arquivos Brasileiros de Cardiologia, Vol 103, Iss 3, Pp 201-208 (2014) |
| بيانات النشر: | Sociedade Brasileira de Cardiologia (SBC), 2014. |
| سنة النشر: | 2014 |
| المجموعة: | LCC:Diseases of the circulatory (Cardiovascular) system |
| مصطلحات موضوعية: | Cardiomiopatia Chagásica, Exercício, Frequência Cardíaca, Diseases of the circulatory (Cardiovascular) system, RC666-701 |
| الوصف: | Background: Heart rate variability (HRV) is a marker of autonomic dysfunction severity. The effects of physical training on HRV indexes in Chagas heart disease (CHD) are not well established. Objective: To evaluate the changes in HRV indexes in response to physical training in CHD. Methods: Patients with CHD and left ventricular (LV) dysfunction, physically inactive, were randomized either to the intervention (IG, N = 18) or control group (CG, N = 19). The IG participated in a 12-week exercise program consisting of 3 sessions/week. Results: Mean age was 49.5 ± 8 years, 59% males, mean LVEF was 36.3 ± 7.8%. Baseline HRV indexes were similar between groups. From baseline to follow-up, total power (TP): 1653 (IQ 625 - 3418) to 2794 (1617 - 4452) ms, p = 0.02) and very low frequency power: 586 (290 - 1565) to 815 (610 - 1425) ms, p = 0.047) increased in the IG, but not in the CG. The delta (post - pre) HRV indexes were similar: SDNN 11.5 ± 30.0 vs. 3.7 ± 25.1 ms. p = 0.10; rMSSD 2 (6 - 17) vs. 1 (21 - 9) ms. p = 0.43; TP 943 (731 - 3130) vs. 1780 (921 - 2743) Hz. p = 0.46; low frequency power (LFP) 1.0 (150 - 197) vs. 60 (111 - 146) Hz. p = 0.85; except for high frequency power, which tended to increase in the IG: 42 (133 - 92) vs. 79 (61 - 328) Hz. p = 0.08). Conclusion: In the studied population, the variation of HRV indexes was similar between the active and inactive groups. Clinical improvement with physical activity seems to be independent from autonomic dysfunction markers in CHD. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Portuguese |
| تدمد: | 1678-4170 |
| العلاقة: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2014002100005&lng=en&tlng=enTest; https://doaj.org/toc/1678-4170Test |
| DOI: | 10.5935/abc.20140108 |
| الوصول الحر: | https://doaj.org/article/164ca61f423049b58283b20edcadab62Test |
| رقم الانضمام: | edsdoj.164ca61f423049b58283b20edcadab62 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16784170 |
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| DOI: | 10.5935/abc.20140108 |