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Effects of two types of equal-intensity inspiratory muscle training in stable patients with chronic obstructive pulmonary disease: A randomised controlled trial.
Respir Med 2017; 132:84-91RM

Abstract

PURPOSE

We conducted a randomised controlled trial to assess the effects of daily breathing pattern changes to stable patients with COPD excluding the confounding factors of inspiratory muscle mobilization, by ensuring the load intensities of two inspiratory training devices were equal.

PATIENTS AND METHODS

Sixty patients with COPD were randomised to three groups: resistive-IMT group (T-IMT, 21 patients), threshold-IMT (R-IMT, 19 patients), and a control group (20 patients). Inspiratory load intensity for both methods was set at 60% of maximal inspiratory pressure (MIP), a measure of inspiratory muscle strength, which, along with health-related quality of life (HRQoL), degree of dyspnoea, and exercise capacity, were conducted before and after 8 weeks of daily IMT.

RESULTS

At 8 weeks, there was no significantly difference of MIP between the R- and T-IMT groups (P > 0.05). Chronic Respiratory Disease Questionnaire and Transition Dyspnea Index scores improved significantly after each training program compared with controls (P < 0.05), and R-IMT was significant better (P < 0.05). R-IMT was better than T-IMT in performance of exercise (P < 0.05).

CONCLUSIONS

In summary, in clinically stable patients with COPD, 8 weeks of R-IMT was superior to 8 weeks of equal-intensity T-IMT in improving HRQoL, degree of dyspnoea, and exercise capacity.

Authors+Show Affiliations

Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.Department of Respiratory Medicine, The First Affiliated Hospital of Guizhou Medical University, Guizhou, China.Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China. Electronic address: zhlx09@163.com.Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China. Electronic address: chenrc_vip@163.com.

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

29229110

Citation

Wu, Weiliang, et al. "Effects of Two Types of Equal-intensity Inspiratory Muscle Training in Stable Patients With Chronic Obstructive Pulmonary Disease: a Randomised Controlled Trial." Respiratory Medicine, vol. 132, 2017, pp. 84-91.
Wu W, Guan L, Zhang X, et al. Effects of two types of equal-intensity inspiratory muscle training in stable patients with chronic obstructive pulmonary disease: A randomised controlled trial. Respir Med. 2017;132:84-91.
Wu, W., Guan, L., Zhang, X., Li, X., Yang, Y., Guo, B., ... Chen, R. (2017). Effects of two types of equal-intensity inspiratory muscle training in stable patients with chronic obstructive pulmonary disease: A randomised controlled trial. Respiratory Medicine, 132, pp. 84-91. doi:10.1016/j.rmed.2017.10.001.
Wu W, et al. Effects of Two Types of Equal-intensity Inspiratory Muscle Training in Stable Patients With Chronic Obstructive Pulmonary Disease: a Randomised Controlled Trial. Respir Med. 2017;132:84-91. PubMed PMID: 29229110.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of two types of equal-intensity inspiratory muscle training in stable patients with chronic obstructive pulmonary disease: A randomised controlled trial. AU - Wu,Weiliang, AU - Guan,Lili, AU - Zhang,Xianming, AU - Li,Xiaoying, AU - Yang,Yuqiong, AU - Guo,Bingpeng, AU - Ou,Yonger, AU - Lin,Lin, AU - Zhou,Luqian, AU - Chen,Rongchang, Y1 - 2017/10/04/ PY - 2017/09/02/received PY - 2017/09/29/revised PY - 2017/10/02/accepted PY - 2017/12/13/entrez PY - 2017/12/13/pubmed PY - 2018/8/22/medline KW - Degree of dyspnoea KW - Exercise capacity KW - Health-related quality of life KW - Inspiratory resistive training KW - Threshold load training SP - 84 EP - 91 JF - Respiratory medicine JO - Respir Med VL - 132 N2 - PURPOSE: We conducted a randomised controlled trial to assess the effects of daily breathing pattern changes to stable patients with COPD excluding the confounding factors of inspiratory muscle mobilization, by ensuring the load intensities of two inspiratory training devices were equal. PATIENTS AND METHODS: Sixty patients with COPD were randomised to three groups: resistive-IMT group (T-IMT, 21 patients), threshold-IMT (R-IMT, 19 patients), and a control group (20 patients). Inspiratory load intensity for both methods was set at 60% of maximal inspiratory pressure (MIP), a measure of inspiratory muscle strength, which, along with health-related quality of life (HRQoL), degree of dyspnoea, and exercise capacity, were conducted before and after 8 weeks of daily IMT. RESULTS: At 8 weeks, there was no significantly difference of MIP between the R- and T-IMT groups (P > 0.05). Chronic Respiratory Disease Questionnaire and Transition Dyspnea Index scores improved significantly after each training program compared with controls (P < 0.05), and R-IMT was significant better (P < 0.05). R-IMT was better than T-IMT in performance of exercise (P < 0.05). CONCLUSIONS: In summary, in clinically stable patients with COPD, 8 weeks of R-IMT was superior to 8 weeks of equal-intensity T-IMT in improving HRQoL, degree of dyspnoea, and exercise capacity. SN - 1532-3064 UR - https://www.unboundmedicine.com/medline/citation/29229110/Effects_of_two_types_of_equal_intensity_inspiratory_muscle_training_in_stable_patients_with_chronic_obstructive_pulmonary_disease:_A_randomised_controlled_trial_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0954-6111(17)30340-2 DB - PRIME DP - Unbound Medicine ER -