Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Clinical Trial
. 2016 Jun 15;11(6):e0157229.
doi: 10.1371/journal.pone.0157229. eCollection 2016.

Validity and Usability of Physical Activity Monitoring in Patients with Chronic Obstructive Pulmonary Disease (COPD)

Tobias Boeselt  1 , Marc Spielmanns  2   3 , Christoph Nell  1 , Jan Hendrik Storre  4   5 , Wolfram Windisch  5   2 , Lena Magerhans  1 , Bjoern Beutel  1 , Klaus Kenn  1   6 , Timm Greulich  1 , Peter Alter  1 , Claus Vogelmeier  1 , Andreas Rembert Koczulla  1
Affiliations
Clinical Trial

Validity and Usability of Physical Activity Monitoring in Patients with Chronic Obstructive Pulmonary Disease (COPD)

Tobias Boeselt et al. PLoS One. .

Abstract

Background: A large proportion of COPD patients do not achieve the recommended level of physical activity. It is suggested that feedback on the level of activity by using an activity monitoring device (PAM) increases awareness and may stimulate patients to increase their physical activity in daily life. Our objective was to assess the validity and usability of a simple and low-cost physical activity monitor (Polar A300™) when compared with the validated and established Bodymedia-SenseWear™ (SWA) device.

Methods: To assess the diagnostic equivalent, two different PAM devices were used in parallel in 20 COPD patients GOLD I to IV during 3 consecutive days of daily life. Both systems were compared in terms of steps, calories burned, daily activity time and metabolic equivalents using linear regression analysis and Bland-Altman plots. Practical usability was examined by a 16-item-questionnaire.

Results: High correlations of both devices were observed with regard to the sensed step count (r = 0.96; p < 0.01) and calories burned (r = 0.74; p < 0.01), and a lower correlation of daily activity (r = 0.25; p < 0.01) was found. Data analysis over 3 days showed that 90% of the steps (95% CI -4223 to 1887), 100% of the calories (95% CI -2798 to 1887), 90% of the daily activity data (95% CI -12.32, 4065) and 95% of the MET (95% CI -3.11 to 2.75) were within the limits of agreement. A favorable usability (system-, information- and interface quality) of the A300™ device was shown (p < 0.01).

Conclusion: The A300™ device with easy practical usability was shown not to be inferior for assessment of physical activity time, step count and calorie consumption in COPD patients when compared with the SWA. It is suggested to consider widespread available devices as commonly used for monitoring recreational sporting activities also in patients for assessment of physical activity in daily life.

PubMed Disclaimer

Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Bodymedia Sensewear™ and Polar A300™Devices.
Fig 2
Fig 2. SWA and Polar method for calculating/measuring steps, calories, daily activity and MET.
Fig 3
Fig 3. Regression analysis and Identity plots.
Steps (A), calories (B), daily activity (C) and MET (D) between Polar A300™ and SWA.
Fig 4
Fig 4. Bland and Altman plots with the mean over three days.
Upper/lower limits of agreement and 95% CI (over/under the means) of steps (A), calories (B), daily activity (C) and MET (D) between Polar A300™ and SWA.
Fig 5
Fig 5. Day bay day comparison between Polar A300™ and SWA.
Steps (A), calories (B), daily activity (C) and MET (D) (p<0,05).
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. Löllgen H. Bedeutung und Evidenz der körperlichen Aktivität zur Prävention und Therapie von Erkrankungen. Dtsch Med Wochenschr. 2013;138:2253–9. 10.1055/s-0033-1349606 - DOI - PubMed
    1. Haughney J, Partridge MR, Vogelmeier C, Larsson T, Kessler R, Ståhl E, et al. Exacerbations of COPD: quantifying the patient's perspective using discrete choice modelling. Eur Respir J. 2005;26(4):623–9. 10.1183/09031936.05.00142704 . - DOI - PubMed
    1. Glaab T, Vogelmeier C, Hellmann A, Buhl R. Guideline-based survey of outpatient COPD management by pulmonary specialists in Germany. Int J Chron Obstruct Pulmon Dis. 2012;7:101–8. 10.2147/COPD.S27887 - DOI - PMC - PubMed
    1. Troosters T, Sciurba F, Battaglia S, Langer D, Valluri SR, Martino L, et al. Physical inactivity in patients with COPD, a controlled multi-center pilot-study. Respir Med. 2010;104(7):1005–11. 10.1016/j.rmed.2010.01.012 - DOI - PMC - PubMed
    1. Vorrink SN, Kort HS, Troosters T, Lammers JW. Level of daily physical activity in individuals with COPD compared with healthy controls. Respir Res. 2011;12:33 10.1186/1465-9921-12-33 - DOI - PMC - PubMed

Publication types

MeSH terms