The endurance7/6/2023 ![]() Finally, the ESWT (at the 85% intensity) and the ISWT were performed at the start of a five week control period and at the start and end of a seven week pulmonary rehabilitation programme in 21 patients with COPD (mean FEV1 0.80 (0.18) 1). In a separate group of patients the repeatability of the ESWT at an intensity of 85% of the ISWT performance was evaluated. The walking speeds were calculated to elicit 75%, 85%, and 95% of each patient's maximum ISWT performance for the field tests and measured peak oxygen consumption for the treadmill tests. ![]() In the first limb of the study 10 patients with COPD (mean (SD) forced expiratory volume in one second (FEV1) 1.0 (0.36) 1, 35% predicted) performed three endurance shuttle walk tests (ESWTs) and three treadmill endurance tests. A number of cassette tapes were pre-recorded with a range of audio signal frequencies to dictate walking speeds between 1.80 and 6.00 km/h. The intensity of the field endurance test was related to a percentage of each patient's maximum field exercise performance assessed by the ISWT. The test was designed to complement the incremental shuttle walk test (ISWT) using the same 10 m shuttle course and an audio signal to control pace. ![]() There were four objectives: (1) to develop a protocol (2) to compare treadmill and shuttle walk tests of endurance capacity (3) to examine the repeatability of the endurance shuttle walk test and (4) to compare the sensitivity to pulmonary rehabilitation of endurance and incremental shuttle walk tests. The purpose of this study was to develop an externally controlled, constant paced field walking test to assess endurance capacity in patients with chronic obstructive pulmonary disease (COPD). ![]()
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