Pulmonary RehabilitationPhenotypes and Characterization of COPD A PULMONARY REHABILITATION PERSPECTIVERaskin, Jonathan MD; Marks, Ted PT, DPT; Miller, Albert MDAuthor Information Mount Sinai Beth Israel Medical Center, Pulmonary Division, New York (Dr Raskin);Touro College, Physical Therapy Department, New York (Dr Marks); and Icahn School of Medicine, Mount Sinai, New York (Dr Miller). Correspondence: Jonathan Raskin, MD, 1000 Park Ave, New York City, NY 10003 (email@example.com). The authors declare no conflicts of interest. Journal of Cardiopulmonary Rehabilitation and Prevention: January 2018 - Volume 38 - Issue 1 - p 43-48 doi: 10.1097/HCR.0000000000000271 Buy Metrics AbstractIn Brief Phenotyping and the characterization of chronic obstructive pulmonary disease (COPD) is currently an active area of interest. The perspectives gleaned from evaluating COPD in the context of exercise lend new insights into this endeavor. Pulmonary rehabilitation centers are uniquely positioned to generate such clinical observations and have enhanced an understanding of the disease processes that are involved in COPD. This review and commentary discusses the various patterns of exercise intolerance and characterizes COPD from the perspectives of clinicians caring for persons with COPD. Clinical phenotyping of chronic obstructive pulmonary disease (COPD) has been pursued by clinicians for decades. The unique perspective to evaluate COPD patients, while exercising in our pulmonary rehabilitation centers, has afforded clinical insights into the physiologic and psychologic underpinnings of COPD. Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.