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| Title |
The association between objectively measured physical activity and morning symptoms in COPD
|
|---|---|
| Published in |
International Journal of Chronic Obstructive Pulmonary Disease, October 2017
|
| DOI | 10.2147/copd.s143387 |
| Pubmed ID | |
| Authors |
Amanda R van Buul, Marise J Kasteleyn, Niels H Chavannes, Christian Taube |
| Abstract |
The morning is the most bothersome period for COPD patients. Morning symptom severities in different Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages are not well studied. Furthermore, factors that are associated with morning symptoms, especially the associations with objectively measured physical activity, are also not well described. The aim of this cross-sectional observational study was to assess morning symptom severity in GOLD A, B, C and D patients, according to the definitions of the GOLD 2015 statement. Morning symptoms were assessed with the PRO-Morning COPD Symptoms Questionnaire. Differences in morning symptom severity between different COPD stages were assessed with a one-way analysis of variance followed by post hoc analyses. The association between dyspnea severity (assessed with the modified Medical Research Council scale), health status, airflow limitation, lung hyperinflation, anxiety and depression, inflammatory parameters, exacerbations, objectively measured physical activity parameters retrieved from accelerometry and morning symptom severity was evaluated using linear regression analysis. Eighty patients were included (aged 65.6±8.7 years, forced expiratory volume in 1 second [FEV1] % predicted 55.1±16.9). Mean (±SD) morning symptom score was 19.7 (±11.7). Morning symptom severity was significantly different between COPD stages: mean (±SD) score in GOLD A was 9.7 (±7.2), in GOLD B 19.8 (±10.7), in GOLD C 8.6 (±9.3) and in GOLD D 23.8 (±11.2) (p<0.001). Lower health status, more symptoms, increased anxiety and depression, less physical activity (all p<0.001) and lower FEV1 (p=0.03) were associated with an increased morning symptom severity. Patients with overall more symptomatic COPD have significant higher morning symptom scores. Morning symptom severity was associated with important clinical outcomes: lower health status, more symptoms, increased anxiety and depression, fewer steps a day, less time in moderate and vigorous physical activity with bouts of at least 10 minutes and lower FEV1. The data suggest that morning symptoms should be carefully assessed in addition to assessment by general COPD-specific questionnaires, especially in those with more symptomatic COPD. More research is needed on potential therapies to improve morning symptoms; this study shows potential targets for intervention. |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 3 | 18% |
| United States | 1 | 6% |
| Unknown | 13 | 76% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 12 | 71% |
| Scientists | 3 | 18% |
| Practitioners (doctors, other healthcare professionals) | 2 | 12% |
Mendeley readers
The data shown below were compiled from readership statistics for 46 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 46 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 8 | 17% |
| Student > Bachelor | 6 | 13% |
| Researcher | 5 | 11% |
| Student > Ph. D. Student | 5 | 11% |
| Professor > Associate Professor | 3 | 7% |
| Other | 4 | 9% |
| Unknown | 15 | 33% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 10 | 22% |
| Nursing and Health Professions | 5 | 11% |
| Sports and Recreations | 5 | 11% |
| Psychology | 3 | 7% |
| Immunology and Microbiology | 2 | 4% |
| Other | 4 | 9% |
| Unknown | 17 | 37% |
Attention Score in Context
This research output has an Altmetric Attention Score of 9. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 December 2017.
All research outputs
#4,103,727
of 25,382,440 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#495
of 2,578 outputs
Outputs of similar age
#68,082
of 331,218 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#11
of 70 outputs
Altmetric has tracked 25,382,440 research outputs across all sources so far. Compared to these this one has done well and is in the 83rd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,578 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.5. This one has done well, scoring higher than 80% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 331,218 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 79% of its contemporaries.
We're also able to compare this research output to 70 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 84% of its contemporaries.