Improvement of heart rate variability after exercise training and its predictors in COPD

被引:62
作者
Camillo, Carlos Augusto [1 ,2 ]
Laburu, Viviane de Moraes [1 ]
Goncalves, Nicole Soriano [1 ]
Cavalheri, Vinicius [1 ,2 ]
Tomasi, Fernanda Priore [1 ]
Hernandes, Nidia Aparecida [1 ,2 ]
Ramos, Dionei [2 ]
Marquez Vanderlei, Luiz Carlos [2 ]
Cipulo Ramos, Ercy Mara [2 ]
Probst, Vanessa Suziane [3 ,4 ]
Pitta, Fabio [1 ,2 ,3 ]
机构
[1] Univ Estadual Londrina, Lab Pesquisa Fisioterapia Pulm LFIP, Dept Fisioterapia, Londrina, Parana, Brazil
[2] Univ Estadual Paulista, UNESP, Dept Fisioterapia, Programa Mestrado Fisioterapia, Sao Paulo, Brazil
[3] Programa Associado UEL UNOPAR, Programa Mestrado Ciencias Reabilitacao, Londrina, Parana, Brazil
[4] Univ Norte Parana UNOPAR, CCBS, CPCS, Londrina, Parana, Brazil
基金
巴西圣保罗研究基金会;
关键词
Chronic obstructive pulmonary disease; Heart rate variability; Exercise training; Determinants; OBSTRUCTIVE PULMONARY-DISEASE; BLOOD-PRESSURE; DYSFUNCTION;
D O I
10.1016/j.rmed.2011.01.014
中图分类号
R5 [内科学];
学科分类号
100201 [内科学];
摘要
Background: Current literature lacks solid evidence on the improvement of heart rate variability (HRV) after exercise training in patients with COPD. Objectives: We aimed to investigate changes in HRV after two exercise training programs in patients with COPD and to investigate the determinants of these eventual changes. Methods: Forty patients with COPD (FEV1 39 +/- 13%pred) were randomized into high (n = 20) or Low (n = 20) intensity exercise training (3-month duration), and had their HRV assessed by the head-up tilt test before and after either protocols. Baseline spirometry, level of daily physical activity, exercise capacity, body composition, functional status, health-related quality of life and muscle force were also assessed to investigate the determinants of improvement in HRV after the training program. Results: There was a significant improvement in HRV only after the high-intensity protocol (pre versus post; SDNN 29 +/- 15 ms versus 36 +/- 19 ms; rMSSD 22 +/- 14 ms versus 28 +/- 22 ms; p < 0.05 for both). Higher values of biceps brachialis strength, time spent walking in daily life and SDNN at baseline were determinants of improvement in HRV after the training program. Conclusions: High-intensity exercise training improves HRV at rest and during orthostatic stimulus in patients with COPD. Better baseline total HRV, muscle force and daily physical activity level are predictors of HRV improvements after the training program. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1054 / 1062
页数:9
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