Effects of inspiratory muscle training on the autonomic nervous functioning and exercise capacity of patients with chronic obstructive pulmonary disease
10.3760/cma.j.cn421666-20250118-00011
- VernacularTitle:吸气肌训练对慢性阻塞性肺疾病患者自主神经功能及运动能力的影响
- Author:
Jian JIA
1
;
Yingzi LIANG
;
Xiaozhe LIU
Author Information
1. 商丘师范学院体育学院，商丘 476000
- Publication Type:Journal Article
- Keywords:
Inspiratory muscle training;
Chronic obstructive pulmonary disease;
Autonomic nervous system;
Heart rate variability;
Exercise capacity
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2025;47(6):519-523
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the effect of inspiratory muscle training on autonomic nervous function, respiratory muscle strength, lung function and exercise capacity in patients with chronic obstructive pulmonary disease (COPD).Methods:Sixty COPD patients were randomly divided into an observation group and a control group, each of 30. Both groups received routine rehabilitation management (pharmacotherapy, pursed-lip breathing exercises, and abdominal breathing training), but the observation group also received threshold-loaded inspiratory muscle training at 30% of their maximum inspiration pressure. The regimen was three sessions weekly over a 12-week period. Before and after the intervention, everyone′s lung function and respiratory muscle strength were measured with an electronic spirometer. The 6min walking test (6MWT) was also administered, with the subjects′ heart rate variability (HRV) recorded.Results:After the intervention, no significant change was observed among the control group in any of the measurements except in their average maximum inspiratory pressure and 6MWT distance. In the observation group there was a significant increase in their average maximum inspiratory pressure (97.0±12.8cmH 2O) and 6MWT distance, but a significant decrease in the average heart rate after the 6MWT. Conclusions:Twelve weeks of low-intensity inspiratory muscle training can significantly improve the respiratory muscle strength, functional exercise capacity and cardiac function of stable COPD patients, relieving their risk of cardiovascular disease.
