Cardiopulmonary Physiotherapy Laboratory, Nucleus of Research in Physical Exercise, Federal University of Sao Carlos, Sao Paulo, Brazil.
Disabil Rehabil. 2011;33(9):751-7. doi: 10.3109/09638288.2010.511420. Epub 2010 Aug 23.
To evaluate the acute effect of physiotherapy (deep breathing exercises and walking) on heart rate variability in patients hospitalised with chronic heart failure (CHF).
Ten males with CHF (57 ± 7 years) and 10 healthy controls (59 ± 9 years) were included. Heart rate and RR intervals were recorded in the following conditions: supine, seated, during deep breathing exercises and during and after walking. Heart rate variability was analysed by linear and non-linear methods (α2, Mean HR, rMSSD, SDNN and ApEn).
Patients presented significantly lower SDNN (12.4 ± 4 versus 26 ± 8 ms), rMSSD (18.2 ± 16.2 versus 25 ± 19.5 ms) and ApEn (9.9 ± 10 versus 16.68 ± 22.6) during the walking compared to controls (p < 0.05). In addition, mean HR was significantly higher during and after walking for patients with CHF compared to controls (103 ± 8 versus 80 ± 2 bpm and 90 ± 9 versus 68 ± 2 bpm, respectively). Patients with CHF demonstrated a significant reduction of α2 during deep breathing (0.78 ± 0.1) when compared to the seated position (1.08 ± 0.1) and walking (1.15 ± 0.2, p < 0.05). Additionally, rMSSD index increased during deep breathing when compared to walking in both groups.
Deep breathing exercises and walking are safe and promote beneficial effects on heart rate variability in patients hospitalised for CHF.
评估物理治疗（深呼吸运动和散步）对慢性心力衰竭（CHF）住院患者心率变异性的急性影响。
纳入 10 名男性 CHF 患者（57±7 岁）和 10 名健康对照者（59±9 岁）。记录仰卧位、坐位、深呼吸运动时以及散步时和散步后的心率和 RR 间期。采用线性和非线性方法（α2、平均心率、rMSSD、SDNN 和 ApEn）分析心率变异性。
与对照组相比，患者在散步时的 SDNN（12.4±4 对 26±8 ms）、rMSSD（18.2±16.2 对 25±19.5 ms）和 ApEn（9.9±10 对 16.68±22.6）明显较低（p<0.05）。此外，CHF 患者在散步时和散步后平均心率明显高于对照组（分别为 103±8 对 80±2 bpm 和 90±9 对 68±2 bpm）。与坐位（1.08±0.1）和散步（1.15±0.2）相比，CHF 患者在深呼吸时α2 显著降低（0.78±0.1，p<0.05）。此外，与散步相比，两组在深呼吸时 rMSSD 指数均增加。
深呼吸运动和散步是安全的，可对 CHF 住院患者的心率变异性产生有益影响。
