Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học 'Respiratory Research cung cấp cho các bạn kiến thức về ngành y đề tài:Peak exercise capacity estimated from incremental shuttle walking test in patients with COPD: a methodological study. | Respiratory Research BioMed Central Research Open Access Peak exercise capacity estimated from incremental shuttle walking test in patients with COPD a methodological study Ragnheiổur Harpa Arnardóttir 1 Margareta Emtner1 Hans Hedenstrom2 Kjell Larsson3 and Gunnar Boman1 Address Department of Medical Sciences Respiratory Medicine and Allergology Uppsala University Uppsala Sweden 2Department of Medical Sciences Clinical Physiology Uppsala University Uppsala Sweden and 3Lung and Allergy Research National Institute of Environmental Medicine Karolinska Institutet Stockholm Sweden Email Ragnheiổur Harpa Arnardóttir - Margareta Emtner - Hans Hedenstrom - Kjell Larsson - Gunnar Boman - Corresponding author Published 17 October 2006 Received 31 May 2006 Respiratory Research 2006 7 127 doi 1465-9921-7-127 Accepted 17 October 2006 This article is available from http content 7 1 127 2006 Arnardóttir et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background In patients with COPD both laboratory exercise tests and field walking tests are used to assess physical performance. In laboratory tests peak exercise capacity in watts W peak and or peak oxygen uptake VO2 peak are assessed whereas the performance on walking tests usually is expressed as distance walked. The aim of the study was to investigate the relationship between an incremental shuttle walking test ISWT and two laboratory cycle tests in order to assess whether W peak could be estimated from an ISWT. Methods Ninety-three patients with moderate or severe COPD performed an ISWT an incremental
