William W Stringer, MD

William Stringer, MD

Investigator, The Lundquist Institute
Professor of Medicine, Geffen School of Medicine at UCLA


Chronic Obstructive Pulmonary Disease (COPD), Exercise Intolerance and Dyspnea

Research Description

Dr. Stringer has had a lifelong focus on improving exercise capacity in patients with a variety of heart and lung conditions, including Chronic Obstructive Pulmonary Disease (COPD), Interstitial Lung Disease, Dyspnea, HIV, Exercise Intolerance, Pre-Operative Exercise Training, and Heart Failure. He also performs Exercise Consultations on patients with difficult to diagnose conditions.. Our research interventions include various devices, medications, behavioral therapy, and exercise rehabilitation, however, our motto is “Exercise is the Best Medicine.”

Dr Stringer also has an interest in the Medical Humanities and has over 15 lectures addressing various topics involving medicine and art, music, history, self-experimentation, medical ethics, medical education, the Civil War, Sherlock Holmes, Goya, and medieval medicine.


  • BA, 1979, University of California, San Diego, La Jolla, CA
  • MD, 1984, University of California, San Diego, La Jolla, CA

Recent and/or Significant Publications

Hansen, J.E., Sun, X.G., and W. W. Stringer. A simple new visualization of exercise data discloses pathophysiology and severity of heart failure. J Am Heart Assoc. 2012 Jun; 1(3): e001883.
Hansen, J.E., Porszasz, J., Casaburi, R. and W. W. Stringer. Re-defining lower limit of normal for FEV1/FEV6, FEV1/FVC, FEV3/FEV6, and FEV3/FVC to improve detection of airway obstruction. Chronic Obstr Pulm Dis. 2015 Mar 10;2(2):94-102.
Dilektasli AG, Porszasz J, Casaburi R, W.W. Stringer, Bhatt SP, Pak Y, Rossiter HB, Washko G, Castaldi PJ, San Jose Estepar R, Hansen JE. A novel spirometric measure identifies mild chronic obstructive pulmonary disease unidentified by standard criteria.; COPDGene Investigators. Chest. 2016 Nov;150(5):1080-1090.
Kisaka, T, Stringer, WW, Koike, A, Agostoni, M, and Wasserman, K. Mechanisms that Modulate Peripheral Oxygen Delivery in Heart Failure. Ann Am Thorac Soc. 2017 Jul;14(Supplement_1):S40-S47.
Tan C1,2, Rossiter HB3,4, Porszasz J2, Bowen TS4, Witte KK5, Stringer WW2, Casaburi R2, Hansen JE2. Reliability and Physiological Interpretation of Pulmonary Gas Exchange by "Circulatory Equivalents" in Chronic Heart Failure. J Am Heart Assoc. 2018 Mar 27;7(7).
List of published Work in