Daily activity during stability and exacerbation of chronic obstructive pulmonary disease
| Autor: | Ayedh D, Alahmari, Anant R C, Patel, Beverly S, Kowlessar, Alex J, Mackay, Richa, Singh, Jadwiga A, Wedzicha, Gavin C, Donaldson |
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| Rok vydání: | 2014 |
| Předmět: |
Aged
80 and over Male Time Factors Physical activity Exacerbation Walking Severity of Illness Index Cohort Studies Daily monitoring Pulmonary Disease Chronic Obstructive Physical Fitness Activities of Daily Living Disease Progression Humans COPD Daily step-count Female Aged Follow-Up Studies Monitoring Physiologic Research Article |
| Zdroj: | BMC Pulmonary Medicine |
| ISSN: | 1471-2466 |
| Popis: | Background During most COPD exacerbations, patients continue to live in the community but there is little information on changes in activity during exacerbations due to the difficulties of obtaining recent, prospective baseline data. Methods Patients recorded on daily diary cards any worsening in respiratory symptoms, peak expiratory flow (PEF) and the number of steps taken per day measured with a Yamax Digi-walker pedometer. Exacerbations were defined by increased respiratory symptoms and the number of exacerbations experienced in the 12 months preceding the recording of daily step count used to divide patients into frequent (> = 2/year) or infrequent exacerbators. Results The 73 COPD patients (88% male) had a mean (±SD) age 71(±8) years and FEV1 53(±16)% predicted. They recorded pedometer data on a median 198 days (IQR 134–353). At exacerbation onset, symptom count rose by 1.9(±1.3) and PEF fell by 7(±13) l/min. Mean daily step count fell from 4154(±2586) steps/day during a preceding baseline week to 3673(±2258) step/day during the initial 7 days of exacerbation (p = 0.045). Patients with larger falls in activity at exacerbation took longer to recover to stable level (rho = −0.56; p |
| Databáze: | OpenAIRE |
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