0
Clinical Investigations: COPD |

Effect of Respiratory Muscle Endurance Training in Patients With COPD Undergoing Pulmonary Rehabilitation*

M. Jeffery Mador, MD; Omar Deniz, MD; Ajay Aggarwal, MD; Mary Shaffer, NP; Thomas J. Kufel, MD; Christina M. Spengler, PhD
Author and Funding Information

*From the Veterans Affairs Western New York Healthcare System (Drs. Mador, Deniz, Aggarwal, Kufel, and Ms. Shaffer), Buffalo, NY; and Exercise Physiology (Dr. Spengler), Institute for Human Movement Sciences, Swiss Federal Institute of Technology, Zurich, Switzerland.

Correspondence to: M. Jeffery Mador, MD, Division of Pulmonary, Critical Care, and Sleep Medicine, Section 111S, State University of New York at Buffalo, Veterans Administration Medical Center, 3495 Bailey Ave, Buffalo, NY 14215; e-mail: mador@acsu.buffalo.edu



Chest. 2005;128(3):1216-1224. doi:10.1378/chest.128.3.1216
Text Size: A A A
Published online

Background: Respiratory muscle endurance training (hyperpnea training) has been shown to have beneficial effects in patients with COPD.

Study objectives: The purpose of this study was to determine whether hyperpnea training, when added to an endurance exercise training program, would lead to additional benefits compared with endurance training alone in patients with COPD.

Setting and participants: Patients with COPD entering an 8-week outpatient pulmonary rehabilitation program. Fifteen patients (mean [± SE] FEV1, 45 ± 6% predicted) were randomized to combined therapy, and 14 patients (mean FEV1, 44 ± 4% predicted) were randomized to endurance training.

Methods: Peak exercise capacity, exercise endurance time during constant workload cycle exercise, 6-min walk distance, quality of life as measured by the chronic respiratory questionnaire, respiratory muscle strength and endurance, and quadriceps fatigability were measured before and after endurance or combined training.

Results: After rehabilitation, peak exercise capacity, exercise endurance time, 6-min walk distance, and quality of life all increased in both groups, but there was no significant difference in the extent of improvement between groups. Mean respiratory muscle endurance increased to a significantly greater extent in the combined therapy group (17.5 ± 2.7 vs 8.5 ± 2.5 min, respectively; p = 0.02). Respiratory muscle strength was significantly increased, and quadriceps fatigability was significantly reduced after rehabilitation in the combined therapy group but not in the endurance training group, but the difference between groups did not reach statistical significance.

Conclusion: The endurance of the respiratory muscles can be improved by specific training beyond that achieved by endurance training alone in patients with COPD. However, this improvement did not translate into additional improvement in quality of life or exercise performance.

Figures in this Article

Sign In to Access Full Content

MEMBER & INDIVIDUAL SUBSCRIBER

Want Access?

NEW TO CHEST?

Become a CHEST member and receive a FREE subscription as a benefit of membership.

Individuals can purchase this article on ScienceDirect.

Individuals can purchase a subscription to the journal.

Individuals can purchase a subscription to the journal or buy individual articles.

Learn more about membership or Purchase a Full Subscription.

INSTITUTIONAL ACCESS

Institutional access is now available through ScienceDirect and can be purchased at myelsevier.com.

Sign In to Access Full Content

MEMBER & INDIVIDUAL SUBSCRIBER

Want Access?

NEW TO CHEST?

Become a CHEST member and receive a FREE subscription as a benefit of membership.

Individuals can purchase this article on ScienceDirect.

Individuals can purchase a subscription to the journal.

Individuals can purchase a subscription to the journal or buy individual articles.

Learn more about membership or Purchase a Full Subscription.

INSTITUTIONAL ACCESS

Institutional access is now available through ScienceDirect and can be purchased at myelsevier.com.

Figures

Tables

References

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

MEMBER & INDIVIDUAL SUBSCRIBER

Want Access?

NEW TO CHEST?

Become a CHEST member and receive a FREE subscription as a benefit of membership.

Individuals can purchase this article on ScienceDirect.

Individuals can purchase a subscription to the journal.

Individuals can purchase a subscription to the journal or buy individual articles.

Learn more about membership or Purchase a Full Subscription.

INSTITUTIONAL ACCESS

Institutional access is now available through ScienceDirect and can be purchased at myelsevier.com.

Related Content

Customize your page view by dragging & repositioning the boxes below.

CHEST Journal Articles
PubMed Articles
  • CHEST Journal
    Print ISSN: 0012-3692
    Online ISSN: 1931-3543