0
ARTICLE |

EFFECT OF EXERCISE ON RESPIRATORY EXCHANGE IN HEART DISEASE. II

J. M. H. CAMPBELL, M.D.; F. J. SALE, M.B.
Arch Intern Med (Chic). 1927;40(2):237-250. doi:10.1001/archinte.1927.00130080111010.
Text Size: A A A
Published online

Although breathlessness on exertion is one of the most common symptoms of disease, and though difficulty in obtaining a sufficient exchange of oxygen and carbon dioxide is the underlying cause, the exact mechanism is little understood. Certainly it is the quantity of air and of oxygen relative to the capacity of the subject rather than the absolute amount which is important, and we have tried to learn more about this phenomenon by comparing the reaction of normal and of breathless subjects to the same exercise.

The pioneer work of Haldane has led to an enormous amount of investigation during the last twenty years, and has been applied to the changes at the beginning and end of exercise by Krogh and Lindhard,1 by Campbell, Douglas and Hobson2 and, more recently, by Hill and his fellow workers.3 The changes at the beginning take place quickly, and the larger part of the reverse

Topics

Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

First Page Preview

View Large
/>
First page PDF preview

Figures

Tables

References

Correspondence

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
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).
Submit a Comment

Multimedia

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

Sign In to Access Full Content

Related Content

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

Jobs
brightcove.createExperiences();