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Int J Chron Obstruct Pulmon Dis. 2014 Oct 3;9:1081-90. doi: 10.2147/COPD.S66846. eCollection 2014.

Self-efficacy enhancing intervention increases light physical activity in people with chronic obstructive pulmonary disease.

Author information

1
Division of Acute, Critical and Long-Term Care Programs, School of Nursing, University of Michigan, Ann Arbor, MI, USA ; Department of Biobehavioral Health Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA.
2
Department of Biobehavioral Health Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA.
3
Division of Pulmonary and Critical Care Medicine, Edward Hines Jr VA Hospital, Hines, IL, USA ; Advocate Christ Medical Center, Oaklawn, IL, USA.
4
Department of Kinesiology and Community Health, College of Applied Health Sciences, University of Illinois Urbana-Champagne, Urbana, IL, USA.

Abstract

BACKGROUND:

People with chronic obstructive pulmonary disease lead sedentary lives and could benefit from increasing their physical activity. The purpose of this study was to determine if an exercise-specific self-efficacy enhancing intervention could increase physical activity and functional performance when delivered in the context of 4 months of upper body resistance training with a 12-month follow-up.

METHODS:

IN THIS RANDOMIZED CONTROLLED TRIAL, SUBJECTS WERE ASSIGNED TO: exercise-specific self-efficacy enhancing intervention with upper body resistance training (SE-UBR), health education with upper body resistance training (ED-UBR), or health education with gentle chair exercises (ED-Chair). Physical activity was measured with an accelerometer and functional performance was measured with the Functional Performance Inventory. Forty-nine people with moderate to severe chronic obstructive pulmonary disease completed 4 months of training and provided valid accelerometry data, and 34 also provided accelerometry data at 12 months of follow-up. The self-efficacy enhancing intervention emphasized meeting physical activity guidelines and increasing moderate-to-vigorous physical activity.

RESULTS:

Differences were observed in light physical activity (LPA) after 4 months of training, time by group interaction effect (P=0.045). The SE-UBR group increased time spent in LPA by +20.68±29.30 minutes/day and the other groups decreased time spent in LPA by -22.43±47.88 minutes/day and -25.73±51.76 minutes/day. Changes in LPA were not sustained at 12-month follow-up. There were no significant changes in moderate-to-vigorous physical activity, sedentary time, or functional performance. Subjects spent most of their waking hours sedentary: 72%±9% for SE-UBR, 68%±10% for ED-UBR, and 74%±9% for ED-Chair.

CONCLUSION:

The self-efficacy enhancing intervention produced a modest short-term increase in LPA. Further work is needed to increase the magnitude and duration of effect, possibly by targeting LPA.

TRIAL REGISTRATION:

ClinicalTrials.gov NCT01057797.

KEYWORDS:

behavioral intervention; chronic bronchitis; emphysema; physical activity

PMID:
25336939
PMCID:
PMC4199844
DOI:
10.2147/COPD.S66846
[Indexed for MEDLINE]
Free PMC Article

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