Back to Search
Start Over
Physical activity monitoring in COPD: Compliance and associations with clinical characteristics in a multicenter study
- Source :
- Respiratory Medicine, 106(4), 522-530. Elsevier Saunders
- Publication Year :
- 2012
-
Abstract
- Summary Background Little is known about COPD patients' compliance with physical activity monitoring and how activity relates to disease characteristics in a multi-center setting. Methods In a prospective study at three Northern European sites physical activity and clinical disease characteristics were measured in 134 COPD patients (GOLD-stage II–IV; BODE index 0–9) and 46 controls. Wearing time, steps per day, and the physical activity level (PAL) were measured by a multisensory armband over a period of 6 consecutive days (in total, 144h). A valid measurement period was defined as ≥22 h wearing time a day on at least 5 days. Results The median wearing time was 142 h:17 min (99%), 141 h:1min (98%), and 142 h:24 min (99%), respectively in the three centres. A valid measurement period was reached in 94%, 97%, and 94% of the patients and did not differ across sites ( P = 0.53). The amount of physical activity did not differ across sites (mean steps per day, 4725 ± 3212, P = 0.58; mean PAL, 1.45 ± 0.20, P = 0.48). Multivariate linear regression analyses revealed significant associations of FEV 1 , 6-min walk distance, quadriceps strength, fibrinogen, health status, and dyspnoea with both steps per day and PAL. Previously unrecognized correlates of activity were grade of fatigue, degree of emphysema, and exacerbation rate. Conclusions The excellent compliance with wearing a physical activity monitor irrespective of study site and consistent associations with relevant disease characteristics support the use of activity monitoring as a valid outcome in multi-center studies.
- Subjects :
- Male
SYSTEMIC INFLAMMATION
Time Factors
Exacerbation
INACTIVITY
Vital Capacity
Severity of Illness Index
EXERCISE CAPACITY
Pulmonary Disease, Chronic Obstructive
0302 clinical medicine
Bayesian multivariate linear regression
Forced Expiratory Volume
Medicine
030212 general & internal medicine
Prospective Studies
Prospective cohort study
POPULATION
pulmonary disease
COPD
education.field_of_study
Anthropometry
Chronic obstructive pulmonary disease
Middle Aged
Female
Pulmonary and Respiratory Medicine
BODE index
medicine.medical_specialty
Population
Monitoring, Ambulatory
Motor Activity
OBSTRUCTIVE PULMONARY-DISEASE
Chronic obstructive
03 medical and health sciences
Humans
education
Aged
business.industry
Physical activity
ENERGY-EXPENDITURE
ADULTS
medicine.disease
BODY-MASS
Physical activity level
030228 respiratory system
DAILY-LIFE
FAT
Case-Control Studies
Physical therapy
Patient Compliance
business
Clinical studies
Disease markers
Subjects
Details
- Language :
- English
- ISSN :
- 09546111
- Volume :
- 106
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Respiratory Medicine
- Accession number :
- edsair.doi.dedup.....042d9077549e400a3f1f159e6c5131ca