Use of pedometer and Internet-mediated walking program in patients with chronic obstructive pulmonary disease

摘要

We evaluated an Internetmediated, pedometerbased program to promote walking in chronic obstructive pulmonary disease (COPD). First, we assessed the accuracy of the Omron HJ720ITC pedometer (OMRON Healthcare, Inc; Bannockburn, Illinois) in 51 persons with COPD. The BlandAltman plot showed a median difference of 3 steps (5th and 95th quintiles, 8.0 and 145.0, respectively). We calculated percent difference = ([manual Omron step counts]/manual step counts) × 100. Variability in percent difference occurred at the lowest usual walking speeds. At speeds 80% of the manual step counts in 20 of the 23 persons with walking speed 0.94 m/s. Accuracy is more variable at lower speeds, but the Omron captures more than 80% of manual step counts in most persons. In this preliminary study, an Internetmediated walking program using the Omron significantly increased step counts in COPD.